rvb
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Posts posted by rvb
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Too funny, flex. I just drew a similar picture, but reached a different conclusion.
haha.So.... with iron sights I totally agree the FS will appear to lift more in recoil the farther out it is. Never had a problem with that concept.
I also believe this same principal will apply to the scope body itself. This, along with other factors (eg the distance the scope is from the shooter will change the field of view) will change how the dot appears in relation to the scope body. But will not change how the dot appears in relation to the target.
My perception of how a dot-scope works is that where-ever the gun is pointing, so is the dot (negating parallax).... much like a laser except the light doesn't make it to the target and you can only see the dot through the glass.
For this reason, I just don't see how the dot can lift more based on where the scope is mounted, unless the gun recoils more..... and I don't believe the scope location can cause more recoil.
As the only dissenter, perhaps I'll just have to accept that there is "something" I don't get and go back to dryfiring.... I'm ok with that.
here is my sketch. the hollow dot shows what would have to happen for the dot to rise more off the line of sight.
-rvb
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The further away from the pivot point (wrist) the higher the dot will rise and fall.There's much more barrel rise than "rear-of-slide" size [rise?] on a non-comp gun. The dot will move more and more, the further it is from the back of the slide. Since your eyes are target focused on a dot-gun...So, dots mounted on a frame mount over the front of the chamber (like a C-More on a frame mount) would seem to exhibit this same amount of additional dot movement, compared to the "rear sight" location.
So I'm curious... would you guys have the same opinion if we replaced the red-dot scope with a laser? Would you say the dot from a laser would have more rise depending on how far forward it was mounted (ie grip mounted vs guide-rod)? If yes, then why? If no, then why is a red-dot scope any different?
imo: In both cases the sight is always the same distance from the pivot point (on the target!). It's not like irons where you're looking at a point at some variable distance between you and the target. It seems that a dot from a laser would rise the same no matter where it's mounted since it's always pointing in line with the gun. I don't see a dot scope working any differently (ignoring parallax). Or after all this time do I not get how a dot scope works?
-rvb
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I have a beretta 92FS that has a couple of times gone approximately 20 thousand rounds without ANY cleaning. Just a couple drops of lube on the locking block from the top of the slide and away off we'd go...
I WAS very anal until I realized that by going through a couple bucks worth of patches and lube and solvent often 2 times per week (not to mention replacing things like bore snakes, brushes, etc), I would spend as much on cleaning crap in 2-3 years as buying a new gun (when I was shooting production). Since I hated cleaning I said screw it, if sporadic cleaning creates a problem I'll buy a new gun. Never seemed to create a problem.
I'm a little more careful w/ my open gun.... very lightly clean the bore every 5k or so when I detail strip the gun, and field clean it every 1k-2k. A few weeks ago while re-zeroing and collecting some hold-over data I shot a 4 to 5" group at 75 yds off hand (didn't have a measure handy to know exactly). So I don't think my practice is hurting anything (gun has approx 20k on it).
-rvb
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I have a whole boatload of nice thick cardboard here at the house and I just need one USPSA silhouette (metric?) target to use as a template to cut my own out of this cardboard. Everywhere I've seen online sells them in packs of 25 or 50, though . . .
You can probably take a used one home from the next match.
ditto. or ask the MD and he may let the club sell you a new one for a buck.
-rvb
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I don't share this thought too often (because few get it...maybe I don't explain it well),,,
Defining a smaller area...like with an outlining the A-zone, using a "+" or a sticker...that teaches your conscious mind where to drive the gun in a specific manner. But, as an added benefit, it conditions the mind to want to see the gun in the proper location with regards to the general outline of the target as a whole as well.
This is also discussed on pages 2-3 of this excellent thread:
http://www.brianenos.com/forums/index.php?...=9655&st=25
something to hopefully add to the discussion....
I was discussing this in person with a squadmate this summer... I think it clicked for them when I said to point to someone's belly button [not w/ a gun!]. Even though (thankfully) the person was wearing a shirt hiding their belly button, they could instantly snap their focus and aim to that spot. I then told them to point to a spot in the center of the upper 1/3rd of the A zone on a metric target some distance away (where you couldn't see the perfs) and it wasn't obvious for them where that spot was.
it helps to engrain where, proportionally, that target spot is on the over-all target. this way your eyes can snap to that spot based on the shape of the whole thing. ... just like he could instantly identify where a belly button should be. it's much faster and more consistant than snapping to brown and fishing for a spot to aim.
one might think that drawing a "belly button" on the target would be a crutch and at matches where the target is all brown you would be lost, but what if you suddenly subconsciously KNOW where that "belly button" SHOULD be?
-rvb
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I've long considered myself a Production guy first and foremost, but I had been shooting Open for all of '09 as I needed a change of pace for a while.
This fall I took a couple months off all shooting and practicing, and just recently started pulling my Production gun out of the safe for a bit of dryfire since I plan to shoot it in '10. However, I keep catching myself making longing glances at my Open gun when the safe is open, so right now I'm feeling a little torn between two loves...
-rvb
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I attended one this fall with a buddy and enjoyed it.
It is geared very much to the new shooter; things like basic sight picture, trigger control, zeroing, etc. One of my goals for 2010 is to improve my rifle shooting, so this provided a good inexpensive range day with some experienced folks to watch what I was doing and comment. My next step is to dable with a couple highpower matches and maybe next year get into a good 3-gun geared rifle class.
While I wish it was greater than 25 yds, I like that they make it so a person can bring anything they own and play... no equipment rules at all, and very little extra equipment required. I went ahead and bought a shooting mat, but that was all.
I picked up some of the 'AQT' targets they use so I can practice on my own and have something to compare to. I don't know that I would go again, but I'm not opposed to it.
They asked for comments from the day on the appleseedinfo.org forum, and here is what I wrote:
I'm not really a "rifle" guy, have a few and shoot them a couple times a year... and at that it's usually 3-gun type hose-fests. Arriving at the range I joked with my buddy that I could probably shoot equivalent or better groups off-hand w/ a pistol at 25 yds than prone with my rifle... but that's why I was there... to learn something and become more "one" with my long gun.I was a little apprehensive what the "tone" would be. I had heard stories about anti-personel drills and was afraid the tone would be very 'militia-ish' or anti-gov dispite not being a billed as a militia group. Instead what I found was the instructors did an excellent job rooting the need for aimed/accurate fire in historical context and relating the training to our individual responsibility and heritage as citizens. I'm sure every 'seed is different based on the personalities of the instructors, but [the head instructor] and all the others did an excellent job and I think anyone at the range looking for stronger sentiment would have felt out of place.
As for the shooting, I'm definately a better shooter today then on Saturday morning when I showed up. I took away a lot of things I want to dryfire out, and I will be taking the AR along with me more often to the range.
As I expected, my handgun skills translated over very well (I have many years experience in practical pistol shooting). Sight-alignment, trigger control, and shot calling are the same no matter what the trigger is connected to. I pulled out a 230 on the first day and backed it up with several high 220's on Sunday. Getting the "Rifleman" patch on Sat took any self-induced pressure off, and I felt I could experiment more on Sunday and learn the effects of different grips, sitting styles, sight pictures, sling tension, etc.
All in all, 2 great days of shooting. Now I just have to let the burns on the small of my back heal from the hot brass belonging to the guy next to me...
-rvb
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The further away from the pivot point (wrist) the higher the dot will rise and fall.
Trying to wrap my head around this statement....
The dot is pointing where the muzzle's pointing, so the dot rising higher implies more muzzle rise. How does moving the scope make the gun recoil more?
Or are we not talking about the same thing?
-rvb
If the muzzle moves the same angular distance, say 10 degrees, the farther away from the pivot point you get, the more the dot will appear to move. You can test this by taking a 12 ruler and holding one end by your nose, this will be the pivot. Take your other hand and hold about 6 inches down the ruler and pivot the ruler up 10 degrees. You will see that the far end of the ruler appears to be higher than where your fingers are holding the ruler. The ruler is at the same angle, but the farther away from the pivot the higher something, like the dot, will look.
Doug
That makes sense for iron sights, but for a dot, well, the dot points where the gun is pointing... if in recoil the gun rises from the middle of the lower A to the upper A, then so will the dot, regardless if you hold the scope at your nose or 3 feet out, that's where the gun is pointing. Might look a little different in relation to the lens, but I don't think that's was meant? Or maybe it was? Maybe want2race meant the "scope" would rise higher when he said "dot?" That I can get behind.
-rvb
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rvb
in Range Diary
Took the 20" AR for some practice Friday, 12/18, working on my position shooting, using the appleseed targets at 25 yds since that was a benchmark I already had established. Didn't break 220, which was very disapointing.
I tried moving from a point-of-aim = point-of-impact sight picture to a 6-o'clock hold. I re-zerod from prone and put a couple rounds through the same hole on a 1" square I sharpied.... but it all went down hill from there.
I felt like I chased my sight picture the whole time, and it showed in my groups.
My standing was the best it has been, only dropped a couple points over several sets. Sitting is improving for sure, but my prone just sucked compared to last time.
I'm trying to get lower, and get my support arm out to the swivel. felt more consistant but the results didn't show it. I think it's too many variables for one day to know what helped and what hurt.
I think part of the problem was I felt hurried since the wife was expecting me home at a certain time. I should have taken some time to dryfire out the changes and just shoot groups vs the timed drills.
Need to get the press set back up... 150 rounds of factory .223 hurts the wallet.
Should happen soon... I'm in the process of staining trim and doors for my gun room, so I should be ready to 'move in' soon...
-rvb
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The further away from the pivot point (wrist) the higher the dot will rise and fall.
Trying to wrap my head around this statement....
The dot is pointing where the muzzle's pointing, so the dot rising higher implies more muzzle rise. How does moving the scope make the gun recoil more?
Or are we not talking about the same thing?
-rvb
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way to go!
The most important lessons he learned were not how to shoot, but to persevere, that hard work pays off, and nothing worth doing is easy… lessons that will take him far.
I feel like such a slacker ....
-rvb
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Shot this one in Open Division at the 2009 OH State Championship.
Shot it clean in 3.01 for HF = 11.6279. Updated classifier results today shows that as a 93.0232%.
Don't know if they maybe recently changed the HHF that shred was lobbying for? classifiercalc.com showed it as an 83.x%, so that was a pleasent suprise (pulled my ave up by 0.04 instead of pulling it down!). I sent an email to the classifiercalc.com folks to let them know.
-rvb
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isolate your right eye (right handed) by shifting your head slightly to the left to the point that the right eye becomes in line with the sights
Jack, agree it's also a matter of developing dominance, and the dryfire helps ingrain that. But I would recommend moving the gun into alignment with the eye/target vs moving the eye to the gun. The gun does not have to be held perfectly on the centerline of the body. I'm not sure how it's different with a dot vs irons? I only see the dot w/ my right eye and look past the scope w/ my left. eye, sight, target all in alignment. The only difference is the focal plane is always at the target...
-rvb
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dryfire! dryfire! dryfire!
I remember going through this (struggling! through this) when I first learned to shoot both eyes open...
Through repitition in dryfire (especially working on draws) you will build your index so that as you find the target, bring the gun on target, and shift your focus back to the sights, everything will naturally be in alignment. At the same time, even if you don't consciously figure it out, your brain will realize which of the two targets and which of the two sights is the 'correct' one. Be very sure you are switching your focus from target to sight very precisely. It's a good time to work on speeding up how fast you can focus... during dry draws switch your eyes back and forth to confirm you are correctly lined up... this will speed up your vision and help ingrain that sight picture...
Being aware enough to realize what you are seeing is a great first step.
-rvb
ps. I'm sure if you search on "index" or "Natural point of aim" or "NPA" you will find gobs of reading. Right now you are unsure of your alignment because it's not ingrained, and you are having to consciously figure out where to point the gun.
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rvb
in Range Diary
Man, it has been a looong time since I updated here...
two majors since my last post. one "outlaw" match, the "Michiana," and the OH section Level III. Shot Open in both.
Won HOA at the michiana and 2nd in Open at OH (Dave Cutts should have pushed me to 3rd, his gun musta broke or something). Got my first USPSA President's medal. That was cool and unexpected. 1st M got DC, I got 1st M by defacto...
My shot calling is just... awesome. Still room for improvement but it's like 3rd person now... and I'm calling them w/ uncanny accuracy. I feel SO confident around hardcover and no-shoots now.
Had planned to be done for the season after those matches but ended up shooting at Atlanta, IN last weekend... just too nice for November... very happy for not having touched my pistols in 5 weeks. One mike, transitioned too fast off a static onto a drop turner. Again, couldn't believe how my shot calling has improved overall. Some long-range targets and some very tight shots around no shoots and I had zero fear.
Shot an Appleseed event in Oct w/ a buddy. Kinda fun to lay on the ground w/ the AR all day. Shot a 20" plane-jane AR, irons, NM trigger. Got the "Rifleman" patch w/ a 230 out of 250 (210 required) on the first day. Was a 25 yd only event... wish we could have played at 300. Thinking of shooting a couple rounds of HP next year... (My NM M1A has now been on back order 13 months).
My gun room is really progressing... Recently got the ceiling, lights, and floor in, plus the safe moved into the closet. Now just have to do doors, trim, and shelving in the closet. Gotta get it done so I can get my press set back up and start cranking out ammo.
Lots to work on over winter.... but I think I'm going to take some time away until after new years. Maybe just do some reading (Enos and Saul) through Dec and over Christmas.
- I want to learn to draw the gun... I can't do a <1.4 draw to save my life in live fire. It got me to M but after shooting a 79% on 99-23 "Front Sight" last weekend I realize I HAVE to get that to ~1.0 on a wide open 7yd target if I want to even think of playing on the same court as the big boys on standards courses.
note: see http://www.brianenos.com/forums/index.php?showtopic=23437
- I need to work on exiting positions. calling that last shot while already getting my [m]ass in motion. Currently either I miss the call or I'm static while making it.
- continue improving my shooting on the move. I'm leaps and bounds ahead of a year ago, but no where near where I need to be.
- need to fix my grip on the skinny gun. Currently WH rides to high and I get in the way of the thumb safety. Oddly don't have this problem on the 2011.
I think I'm going to clean the open gun good and put it away... Time to dabble in SS and get back on my production game.
-rvb
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I'll not do a solid folding cover again... after using a soft cover for years I "upgraded" to a folding cover from Advanced Cover. Has 4 folding panels. Was great at first... but then the seals at the hinges started to go. The only time I've gotten more water in the bed was with no cover at all. Kinda a pain when hauling big stuff as the panels take up too much bed space (1/4 of the bed). Kinda a pain hauling small stuff to lift the panels to get into the back end. This winter I'm switching back to a soft cover. I've regretted my choice since a few months after buying it.
Oh, when necessary, good old duct tape has solved my leaky hinge problem..... problem with that basic design in general is if the seals leak at all, you have multiple points right over the bed for water to drip in vs leaking in a little around the edges.
Extang may have better seals, I don't know. They make good stuff. They weren't doing that kind of design 5 yrs ago when I got mine.
-rvb
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If we don't pull the trigger, the only way our ego can claim the time is with an acceptable sight picture at blazing speeds.
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The other component has to do with how much live fire practice you're getting. There can exist a psychological reluctance to do fast things with a hot blaster if it feels at all different than our normal experience. I can recall the first time I went to the range after getting a sub 1 draw in dry fire. It took some trust to go that fast with rds in the gun and coming out of the barrel.
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Jake may also have a point about the 50 yard draw. You might consider doing some extremely close draws to get to know what it feels like to do a 1.2 with a hot gun. Into the berm isn't a bad idea either...it may give you "permission" to do it again.
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Good luck,
SA
This forum and it's people are amazing. This thread may be 4+ yrs old but it covers exactly what I need to know right now.
I've identified some problems with my draw. "over-aiming" that first shot as well as trusting my index and grip in live fire. As with the original post, my dryfire draw times and live fire times are worlds apart. I can rock it in dryfire, but with that live ammo I get scared about where I'm sending that first round. In live fire I can feel the hesitation once the gun is extended. I can see it in video. Some searching and reading resulted in finding this treasure trove of information and tips from some awesome talent.
I thought this thread deserved a bump for more than me to read. Does anyone who posted tips have more insight all these years later?
Thanks, all!
-rvb
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... ADD'd out of doing some chores, ... a little modification. ... I'm sure I can get in a few draws before the wifey knows I've gone AWOL.
how'd that work out for ya? 'cause I'm always gettin' busted...
-rvb
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I think I'm getting it.
not quite yet....
Will the bullet drop?yes, slightly.
I think I am starting to understand something. It has to do with the curvature of the earth, and the natural movement of the earths rotation.not at all. has to do with the CONSTANT accelleration of gravity.
-rvb
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don't get me wrong, as I do want to learn. But are you telling me that (let's say) at 2" feet from the barrel, the .45 ACP bullet has already started to drop?
cancel-out the gravity factor for a few feet...or even a few inches?
Let's say you have a .338 Lapua Magnum. Are you telling me that the mass/velocity/energy of the bullet is not cancelling-out gravity for a small distance?
The very moment it leaves the barrel, huh?!
Very very basic physics stuff here. gravity is ALWAYS working. The only reason it doesn't fall IN the gun is the gun has a force equal and opposite of gravity to hold it up. gravity is not cancelled out just because something is going fast.
As I tried to clear up in my last post, gravity IS working, but the bullet may not be dropping. if your sights are over the bore, the the bore must be aimed up for the two paths to cross (the two are NOT parallel). So just like tossing a coin a couple inches out of your hand, the bullet/coin is rising, but will peak then fall. Always on that parabolic curve. bullets do NOT travel in a straight line any more than throwing a baseball.
-rvb
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better wording might be that gravity has no force opposing it the instant it leaves the barrel. By true definition it may not "drop" but may be rising at first since that's where it's pointed... slightly up. A way I usually explain to people is to hold a coin in my hand. If I just drop the coin, it's obvious it falls straight down. If I toss it an inch in the air before if falls, it's apparent that it's near (within an inch or two) the plane of my hand longer before dropping fast. This is what a bullet does. This is what "flat" means.... it means over a distance (faster is farther) it will be close to the line of sights. The faster the bullet and lower the angle of launch the "flatter" the bullet will appear. But no projectile truely travels "flat" unless it's travelling fast enough it's rate of fall equals the curve of the earth (ie satellites in orbit). To do otherwise would defy physics.
google "projectile motion" for gobs of reading. the parabolic curve from teh accelleration of gravity describes the path of the bullet (minus are resistance, which only slows the bullet and scrunches the far side of the curve).
-rvb
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I always thought "+1" was bad.... too lazy to type "I agree." But I confess to using it on occasion. But now I'm seeing people who agree with someone typing "This" ... and that's all? This what? This says it all? This sucks? This is the time of our lives?
So two characters, "+1," has been obsolesced by something that takes more characters to type? huh?
If you agree, type, "I agree." "+1" will be acceptable for partial credit.
If not, type "This." I'll assume you mean "This" thread sucks.
[or will that be considered a debate in the hate forum?
]
-rvb
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I'm in the process of building a dedicated gun/reloading room in my basement. In my storage area I am considering building some custom storage for primers/powder, either built in to the shelving or stand-alone, I haven't decided yet. I'm thinking about building the sides/top with 5/8" fireboard. Maybe even the shelves between components. Thoughts?
Already have 2 layers of fireboard lining the wall seperating the closet from the rest of the basement. Just the bi-fold door will burn (and 1st story above)
There's a water line near the closet and I'm very tempted to add a sprinkler, but my gun safe is in the same area....
Whole room will be locked up so I don't have to worry about securing components from the little-one or little-one's peers.
-rvb
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Thanks for the info!
-rvb
(another Beretta shooter)
haha.
My mom had a stroke ...
in Injured Reserve List
Posted
Best wishes for your mother, as well as you and your whole family.
-rvb