3gunnuts
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Posts posted by 3gunnuts
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13 hours ago, SJMPCC022 said:
That is a good one and very true !!!!!!!!!!!!!!!!!!!!!
That is a great idea ! My default plan if the RO was an anti PCC dude was to lay on my back and hold the hand guard between my knees, then I could pull the charge handle back with my left hand and flag it with my right !
Bet you wish YOU would have thought of that ?????????????????
So John Vigler prone position. Legit.
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On 8/28/2018 at 8:22 PM, SJMPCC022 said:
Since I bought the awesome Taccom3 buffer system, I have the same deal going. The bolt slides back without effort until it doesn't ! It's not really hard to lock it back manually, but I never hit the lever and sent it. I felt there was more pressure on the bolt than was probably good for it or the barrel extension if this was done many times over.
One match with it so far and the RO was more than happy to help out with the flag. Sooner or later that will not be the case and I will lock it back but let it forward with help.
Now every start is basically and unloaded start, just not on the clock.
I flag my own without locking back. Hold forend with right hand, brace stock against left hip and pull charging handle back with left hand. Then flag with the right hand.
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The 510C is gaining a lot of following in Open as it makes it easier to find the dot especially from awkward positions. On PCC I find the outer ring distracting and the 2moa dot not ideal for USPSA. Currently running the C-More with an 8moa dot. Would go with a smaller dot like 4moa for a PCC specific match. It really comes down to prefence and I have an astigmatism for the the 65 moa rings give a halo effect.
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14 hours ago, mmlook said:
depends on the buffer
if you're running a SCS style buffer, the JP is still the best option, due to the weight.
JP BCG weighs 13.5oz with no back weight
Taccom extreme weighs 14.4oz with a weight, about 11.5-12oz without a weight.
if you run a ramped barrel, you're pretty much forced to run the taccom extreme boltFaxom bolt is 14 5/8 oz with weight in. 12 1/8 oz with weight removed.
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12 minutes ago, SJMPCC022 said:
How do you like it and how is it in the sunshine? I watched a few you tube vids and it seemed when the dude was using the circle with the dot in the bright sun it all kind of washed together into one huge circle. I realize that was a video of it so I am asking.
I was thinking about upgrading my dot when this season is over. I currently have a Bushnell AR Optic TR-25. I have zero complaints and it seems to work just fine, as long as the battery is good. With the red glasses I wear the dot is usable in the bright sun, but brighter would be sweet. I would imagine it would be tough to find anyone here who would say his ( or her) dot is way too bright in the sun and wishes it was dimmer.
I was going back and forth between the Holosun 510C and the C More railway. The consensus opinion seems to be the reflex gives you better vision of the stage than a tube style dot ?
Feel free to chime in.
My teammate just put a holosun on his Open pistol and likes it. Makes it easier to find the center dot. I tried an EOTECH for PCC after I blew the battery cover off my FF3 and found the circle really distracting. Switched to 8moa Cmore and I don't think it could be better.
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17 hours ago, mmlook said:
haha, I'll say two things about the hyper fire 24C
1. they are the most common trigger at the local matches I attend
- at least 50% of the PCC guys use it
- Lots of A & B shooters with a couple Masters
2. I've personally seen the most failures with it
- doubling
- failure to reset
- failure to fire(stuck on the sear)nothing against it, nor do I have personal experience with it.
I currently run a JP roller, and a POF flat face drop in,zero issues so far with a JP and Taccom bolt.
have about 2000 rounds on each so far.I had doubling and hammer fall with the Hyperfire. Switched to JP and have not had an issue. Either has my teammate. I think they have the best trigger on the market and it has been proven for like 20 years.
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I went with PSA upper and assembled a lower from KE Arms. JP trigger, Taccom 3 stage with short stroke upgrade. Ebay cheap comp and a Cmore. Runs exceptionally at this point. I don't think going high end on a PCC is needed. This coming from a guy that shoots a JP, DVC 3GUN and a tuned VM CT for 3 gun and 2 2011's for Limited USPSA.
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24 minutes ago, SJMPCC022 said:
I just put a Taccom3 buffer system in this week, first match with it tomorrow. In a bit of practice this week I love it ! Tried it with the bcg weight in and out and out is definitely the ticket.
????????? The bolt goes back really easy until it doesn't, then it gets really difficult. Because I have a regular charge handle, what do most shooters with this issue do for flagging? I am thinking ask the RO to be the third hand ? Old buffer system was lock the bolt back and flag it, still very doable but much more effort needed. More effort could lead to lack of focus on safety, which could lead to an early day !
I brace against my body and yank the CH back. Either lock the bolt or stick in the flag.
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Mine does not lock back at all and it has not been an issue. For unloaded starts I use a 31rd mag with Mega extension and download from 57 to like 50 rounds. It would be nice for ULSC but not needed.
Edit. I just took the delrin pad off the back of the spring and I can lock the bolt back manually.
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2 hours ago, TRUBL said:
yup......but what you are not seeing is the return stroke....THAT is when you get the separation between the buffer and the pad......it is supposed to be up against the buffer (close to) as installed. The proof that is happening is that you do not get the gun lurching forward on the return stroke like a standard buffer.
Now....with the short stroke kit, the wave spring actually assists the 2nd stage and is more pronounced on the 3rd stage (return stroke).
Short-Stroke upgrade is definitely a HUGE improvement. I posted up some results in the another thread.
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3 hours ago, joelogic said:
Short stroke kit wont reset my trigger. Taccom 3 stage runs fine.
3.8gr 700x, 124gr Xtreme.
QC10 lower, AR gold trigger, JP bolt.
Strange. Will it reset if you hand cycle?
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1 hour ago, stick said:
I just ordered three upgrade kits. Two for my PCC's and one for my daughter's.
Anyone have issues with them resetting Hiperfire triggers?
I was able to get the Hiperfire to reset while short stoking using the standard 3 stage and spacer with less over travel than the taccom short stroke. I would get hammer follow intermittently. Switched in a JP trigger and zero issues.
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4 minutes ago, SJMPCC022 said:
They were left by guys on my squad shooting production, all good. But your point is correct.
I get that, this ammo was loaded for lazy paper punching with my M&P. My point was as slow as it is, it cycled my PCC with the new Taccom3 buffer and knocked a popper down at 40yds, it was never intended as match ammo.
I just finished my test firing with the bolt weight removed with my new Taccom buffer system. Your post puzzles me so please elaborate.
There was a tremendous difference between shooting yesterday with the bolt weight in and today with the weight out. Yowza was it easy to shoot ! Double taps on an IPSC steel target at 35-40yds was effortless. As before, I used three different lots of ammo with two different bullet weights, one being Blaser Brass. That one was actually a bit softer than my 115gr load which surprised me. As I said earlier, I suspect the 1120fps published would be about that in my M&P, more than likely much more in the PCC. Chrono tomorrow will verify. Match day Sunday, we will see what happens. When I reload again I will tweak the loads down a bit with the chronograph. 1100fps out of the PCC should fill the bill quite nicely !
I was referring to not being able to adjust the weight of the buffer system.
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35 minutes ago, Fo0 said:
Anyone know the buffer oal of the JP short stroke and Taccom short stroke to compare?
MBX short stroke is 4 and 7/8 "
Taccom Short Stroke - 4 and 9/16 at rest 4 and 1/8 compressed fully
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13 minutes ago, JAFO said:
First, I strongly recommend you never shoot reloads you pick up off the range unless you know and trust the person who loaded them (maybe not even then). Some people shoot 9mm Major, and some people may not know what they are doing. Best not to shoot random range fodder for your safety and that of your gun.
I get an additional ~130-140 fps out of my 16" PCC barrel than from my 5" Production barrel with the exact same load. YMMV, depending on your pistol and carbine barrels.
A 115gr bullet has to be doing at least 1087 fps to make Minor, otherwise you are shooting for no score. The load you describe would be sub-minor in your M&P, but might be fine in your PCC. I would chrono the load out of your PCC before you decide to back it down. Steel should be set to fall for sub-minor loads, so I wouldn't use that as proof you're at least 125PF.
You win for best Screen Name.
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Ok so tested at 30ft shooting hammers with 3 different factory loads. I don't reload pistol so i wanted to see what worked best for factory ammo and figured a lot of guys could use this info. Here is how I felt they ranked in terms of felt recoil and dot movement. Flinched at least once on each target as I am shooting indoors and guns are louder in the stalls.
1) Federal Syntech 150gr Action Pistol Shot the softest with fast dot recovery.
2) Federal 124 gr Suppressor Load- Just slightly more movement than the top load but still extremely soft and easy to recover the dot. I use this in my DVC 3Gun and is my preferred load. I have not found anything that shoots softer in a handgun and I have tested almost every load from every major manufacturer.
3) Remington 115 gr FMJ (mislabeled on the target as FED 115gr) snappier as this is a full power 9mm load. Little bit more violent movement of the dot but still easily manageable. I attribute the tighter group here to clamping down really hard after the first couple shots.
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1 hour ago, Fo0 said:
What is the theory of removing the weight? It seems the heavier bolt would be slower to result in less felt recoil - unless removing the weight means less mass moving back and forth making up for the faster speed
The speed will increase slightly as there is less mass to push but it is also less momentum for the spring to absorb. You can achieve similar results using heavy springs and heavy buffers as well. It is all about minimizing dot movement. The test my teammate and I did proved to us which system works better. Going out now to test with 3 different factory loads and see what works best. Will update in a bit.
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10 hours ago, Fo0 said:
@3gunnuts what bcg are you using and how much does your weight weigh?
I have a tool craft bcg - i removed the weight to test - weight weighs 77 grams = 2.75 ounces
I ordered a PSA upper that was supposed to come with their Hybrid bolt but it came with a Faxom style bolt without the logo.
Bolt weighs 12 1/8 oz
weight weighs 2 1/2 oz
total weight 14 5/8 oz
Original Taccom 3 stage 7 1/8 oz
Taccom with short-stroke upgrade 6 1/2 oz
Spring 2 1/4 oz
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4 hours ago, STIboy said:
Possibly stupid question, but why not just use a lighter buffer instead of removing the weight in the BCG?
Less reciprocating mass/ inertia and I have the the Taccom set up so I cannot remove weight.
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36 minutes ago, SJMPCC022 said:
More great info, and pictorial evidence to back it up.
I got my Taccom3 yesterday and threw it in! I had time to get out today and fire about 35rds with 5 or 6 different ammo configurations.
It was noticeably different than my 7.5oz Kaw Valley buffer and spring. It was smoother, maybe not quite as much as I expected though. In fairness, 35rds isn't much and I have a match Sunday, that will tell the story.
My first thought after shooting today was to try it with the bolt weight out, the nice post above backs up that theory. The second was to play with my next lot of ammo, I just ordered 4000 115gr RN bullets that should be here early next week. Every round I fired today fed, fired and ejected with no issues, that makes me feel a ton of relief. 115's, 147's, a few different loads of the 115's and 2 rounds loaded with SNS red bullets I picked up after the last match, no clue what they were.
My normal 115gr load is loaded with N350,( because I have 2# of it) and published to be 1130fps. They seem snappy, even with the Taccom3, although better than with the old buffer system. I was thinking yesterday I bet they are faster than 1130 with the 16" barrel on my PCC gun. I will chrono those and adjust when I start loading again.
A bunch of the rounds I shot today were a 115gr TC shaped bullet, loaded to probably 950-975fps for target practice with my M&P, at least 2 years ago before I had ever heard of a PCC gun. I set up shop today at 35-40 yards, just so I could really tell what this gun is doing. I also usually practice at that distance or a bit less because it makes the matches seem up close and personal ! I have a couple 8" circles, 5 or 6 18"X24" plates, 2 IPSC steel targets and one pepper popper. Those light target rounds had no problem knocking the big popper down at 40yds, so I'm pretty sure I can back down the match ammo a bit ?
One question to anyone that can answer......................I knew from watching the videos this buffer system allows you to retract the bolt pretty effortlessly until you hit that wall. I was surprised at first how stiff it got as you went back. My normal protocol on any loaded start was to lock the bolt back, put the mag in and close the bolt. I am thinking that may not be the best way with this set up ? The bolt has a ton of tension on it and while holding the charge handle, you can feel it in the bolt release.
Another match this Sunday, real world report on the Taccom3 to follow.
My bolt does not go back far enough to lock open. I don't really care as I just stuff a mag in and cycle. I use a 57 round mag downloaded to around 50 rods. Have not had any issues.
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Had a chance to run 2 nearly identical guns side by side (1 port comp on bolt weight removed gun vs 2 port comp on full weight carrier) with 2 different shooters. . Both of us saw a NOTICEABLE difference in dot movement and spread when firing fast splits/hammers at 30'. There was less movement of the dot up and to the right with the weight removed and it also dipped less when the bolt came forward. Recoil impulse felt more subdued with the weight out. Target with the smaller groups is the two of us shooting my PCC with the weight removed. Larger group target is with full weight carrier. Both guns have the same triggers and optics. Not sure I can get it to shoot any flatter. Maybe adding a wave spring and a quarter at the back but I am pretty happy with the results at this point.
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4 hours ago, JAFO said:
When I had a solid buffer and quarters in the bottom of the tube, I saw the same thing. Up and right bounce all the time. When I switched to a hydraulic buffer, it was quite a bit longer so I removed the quarters. Dot bounce then started to track straight up. So I agree with your guess that the buffer is hitting in the back of the tube.
Gun kicking up and right for righties is normally 556 guns do this that is why righties clock their brakes at 1 o'clock. Barrel twist can also cause torque the barrel left/right while upward lift is due to bolt hitting the receiver extensionextension higher than the center of the stock. The harder it hits the more lift you see but the shorter the stroke the faster it returns.
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Tried the short stroke upgrade today. Short review in other thread.
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Got the Taccom short stroke upgrade installed today. Feels a less violent than just running spacers and quarters. Did some limited testing with and without the bolt weight installed. Weight out kept the gun a bit better on target with as much downward bounce when the bolt closes. Will run more tests midweek when I get back to work. Definitely worth the $20.
I am diving into the PCC pool
in Pistol Caliber Carbine
Posted
I have a brand new 9" Brigand Arms carbon fiber if you are looking for light weight. PM me for a great price.