mcb

Didn't find this one yet, hope I didn't miss it some how. http://www.uspsa.org/classifiers/06-07.pdf Well I had a complete meatware melt down when I shoot it with my Revolver. Hit one of the cover PP and had to reload. For the Revolver guys it's a do or die stage. In Limited-10 I manage a much better run. 30pts, 5.13 seconds, HF=5.8479; a 1.45s draw around the barricade and no misses. Probably not GrandMaster speed but I was happy with the run. Still no numbers on Ohio's Classifier Calculator yet so I have no idea were this will rank. mcb

Hey mcb !! I just got 1K of those Berry RN's to try, care to share any more data and results ??? powders...power factors...brass and OAL ?? Berry's 180RN 4.5grains of Titegroup Fed Match Primer OAL 1.135 Crimp 0.420 Mixed brass (Fed, Win, Rem) V=928fps PF=167 I noticed this load dumps a lot of heat into the gun. It is also the worst for causing the plating to come off. Berry's 180RN 4.8grains of VV N320 Fed Match Primer OAL 1.140 Crimp 0.420 Nickel Remington V=944fps PF=170 You could probably back this off a tenth. 4.5 grains of N320 miss major by a fraction V=913fps PF164.3 Berry's 180RN 5.4grains of VV N340 Fed Match Primer OAL 1.147 Crimp 0.420 Nickel Remington V=970fps PF=175 This one you would definitely want to back down a tenth or two but even this hot is was a smooth shooting load. All these loads were fired in a S&W 610, 6.5 inch barrel, Fluted cylinder. I was using my Chony Alpha Chronograph, although it seem to agree pretty closely to a friend CED Chronograph that most major matches use. Hope that helps mcb

I am using Berry's Round Nose 180 grain bullets in my S&W 610 6.5 inch barrel. These are the only round nose 40cal bullets I have been able to find. The load real nice but the plating comes off occasionally. More often when I use Titegroup and similar fast powders. The bullets seem to like VV N340. They shoot more accurate and less plating coming off. mcb

Apparently I shot the Golden Bullet Standards 06-06 last month better than I thought I did. I managed a 73% and after the August update I am now B class with a 60.54% Now begins the slow grind to A class. Should be fun! mcb

A special division for shooters that like the pump guns, or other manual action shotguns for that matter. Steel targets with slugs is always good. Targets that launches a claybird or other aerial targets. mcb

Where will the results be posted?

Just an observation, but I've seen many a .45 bound off a plate or popper, but not many 38 super's... Now in that case you would get a greater momentum transfer to the plate. The fact that you impart a momentum vector to the 45 bullet in the opposite direction it impacted the plate would mean a larger amount of momentum was imparted to the plate. Although I suspect that the velocity is rather low so the extra momentum would not be great but measurable.

But a bullet impact is close enough to a truly inelastic collision that I dare say you could not measure the difference in momentum imparted to the steel between the 115 grain 9mm and 230 grain 45 if both where loaded to a 125 PF. In both cases the bullet completely splats (very technical term) on the steel. Thus all of the momentum of the bullet is transferred to the steel minus the the component of the momentum particles have that is perpendicular to the plate. Since with good steel and normal copper lead constructed bullets all the fragment come off the plate nearly parallel to the face of the steel all the momentum has to be transferred to the steel. Within the confines of copper and lead bullet construction there should be very little difference between the 115gr bullet going splat and the 230 grain bullet going splat. Assuming the instant before impact both bullet have the same momentum than just after the impact the steel will also have nearly the same momentum there is just not that many other place for the momentum to go. Kinetic energy never enters into these equation if you get into the math. mcb

Kinetic Energy E = 0.5 * M * V^2 Momentum P = M * V Power Factor PF = P / 1000

Too much free time! http://my.stratos.net/~thedump/odds/KEvsBM.gif mcb ETA but remember its the momentum of the bullet (ie PF) at impact with the steel that will determine how well the steel is knocked down not how much kinetic energy the bullet has. Two bullet of equal momentum, even if they have different mass and thus different amounts of kinetic energy, should impart the same momenum to a steel target. This assumes both bullets have similar inelastic collisions with the steel. So in theory a 115 grain 9mm bullet at a 125PF should knock a peice of steel down the same as a 230 grain 45 bullet with a 125 PF even though the 115 grain 9mm bullet has twice the Kinetic energy. {edit: picture to a link...as it was too wide and blew out the screen}

The way I understand it, the striker spring has enough power to overcome the weaker 16# recoil springs when it is cocked. The way the striker sits on the sear, there is simply not enough pressure to keep the slide fully in battery. I am by no means a gunsmith, but I have been wondering if a low power striker spring might fix, or hide this issue? I think you might be on to something here. I am running a 16# spring and have not had a problem but what if AlphaLaundry had disassemble the striker part of the slide and in reassuming it put it back together in such a way that increase the pre-load on the striker spring. This could cause greater force on the sear and thus pull the gun out of battery. There are guys over at www.XDTalk.com that are using 14# spring in their 9mm without real problems. I think its possible the end of the striker spring got caught or bound up on the end of the plastic insert that guides the striker cocked indicator and thus putting more force on the strike. Just a shot in the dark mcb

Is this for real? I would love to have a revolver configured like that! I always though and old webly revolver rechamber of 45ACP and machined for moonclip would make a neat IPSC revolver. mcb

Hmmm... Don't know exactly what to tell you on the 1911 springs. Are you using full size 1911 springs? Do you have to cut coils off them to make them work? The spring many XD shooter are using in there Tactical XD's are 1911 commander length springs. What guide rod are you using? The original factory guide rod or an after market one? If you put the original recoil spring and guild rod (assuming your using aftermarket) back into the gun do you still have the battery problem? Before you get rid of you XD may I suggest one last thing. Give www.pistolgear.com a try. Order one of their 18# springs for a Tactical length XD and see if that works. I know those spring are the correct springs for and XD Tactical. Pistol Gear specializes in XD parts and they have always treated me pretty darn good when ordering parts and accessories for my XD. mcb

Are you sure your get the right spring? Could you be buying springs for a 4inch (service) XD and putting it in you 5inch (tactical) XD? Are the new springs aproximately the same uncompress length as you orginal factory spring? I played with the heavier spring in my XD's and I can't see an XD coming out of battery when inserting a mag with a 20# spring. Curious mcb

As I understand it it a lithium ion battery similar to what you have in your laptop and new Mobile phones. If you take care of it, it should be good for many hundreds if not a few thousand recharges, depending on how deeply you cycle it. With the rapidly growing popularity of lithium based rechargeable batteries by the time you need a new battery I bet they will be well under $25 if not cheaper. I got my CED 7000 last week and will get to use if for the first time this weekend at our local match. I am looking forward to running it through its paces. Later mcb

I have been using a 16lb spring in my XD-40 Tactical and never had a problem with it coming out of battery. If a shake the gun real hard I can shake it out of battery, especially as the spring gets used more. I have been changing my spring approximately every 3000 rounds and have never had a problem traced to my recoil spring. For that matter I have had very few problems in general with my XD. mcb

Yeah but to get at that spring you have to take the locking block and most the trigger assembly out of the polymer frame. Once I got home I completely strip the frame. Figured while I have it partial disassemble I would go all the way and give it a good cleaning, and thoroughly inspect all the other parts in the frame for excessive wear or damage. Every thing else looks good so at present all the parts are laid out on my cleaning table waiting on the new spring to arrive. Hopefully it gets here before this weekends match and more importantly before the following weekend where I am going to try to shoot Eastern Lakes 3-gun with my XD as my handgun. 3-gun limit with a Revolver would be ruff. Anyway, here is the offending piece of spring steel for those that are curious. You'll notice the right leg is missing a small hook that engages the trigger bar. mcb

Opps... I got impatient Jerry and took matters into my own hands and made my own Magazine Tube for my BPS. more details and a picture of my BPS +5 magazine extension: http://mcb-homis.livejournal.com/43154.html

First time my XD-40 has let me down in probably over 6000 rds through it. It was the Third stage of the day at the Easter Lakes Sectional and the Trigger Bar Spring (Part 9 on page 28 of the manual) on my XD-40 Tactical broke leaving me high and dry four rounds into a 32 round stage and most ironically the stage sponsored by Springfield Armory. SOB! and I had a good match going till that point. Well I zeroed that stage and had to switch to my XD-40 Service that is usually my carry gun but I take to matches as a back up gun for just such a problem. The thing is the my Service is basic a stock XD-40 but my Tactical has lots of grip tape, magazine well, and extended magazine release. With how hot it was I was really missing the grip tape. Without the grip tape it felt like the gun was going to squirt out of my sweaty hands. The magazine well was really missed as it make my draws so much more consistent and the thing I missed most was that extend magazine release. Holy cow did the factory release slow down my reloads. Anyway I call SA this morning and I have a new Trigger Bar Spring coming free of charge. Hopefully it will be here before this weekend. Fun Fun mcb

Not frozen, remember a vacuum is a very good insulator. Without air or other gases around the gun you can have no convection cooling. Your only way to gain or loose heat is through radiation. So what ever temperature the gun is when it enters the vacuum its not going to change temperature very fast in most cases. If the gun is in direct sunlight it might actually being getting hotter not cooler due to more radiation coming in then being radiated out. If you were in some shadows given enough time it would get pretty dang cool but it would take a bit of time. Once you start letting the lead fly all that heat from the friction of the bullet passing down the barrel and the waste heat of the conducted to the barrel propellant has no where to go except through radiation and that mean your going to have a hot gun for quite some time to come. Ramblin' mcb

Will there be slug stages? Thanks mcb

+1 for the Element! Hauls all the gear for two shooters, including my Rugged Gear Cart. And I carry lots of extra stuff! +2 for the refrigerator box on wheels! +3 Got to throw my vote in for the Element. I got a new one earlier this summer and its been a great shooting vehicle. The fold up removable back seat really make it a flexible vehicle. The urethane floor makes is muddy match compatible. Give it a look. mcb

Thanks guys, I made a plug just incase. Without the plug it will hold 9+1 with the plug 8+1. I will just ask at the matches what their particular rules are. mcb ETA: for a picture and more detail on how I made it here: http://mcb-homis.livejournal.com/43154.html

So conceivably in the middle of a stage where you have to reloading you could have 10 rounds in the gun legally? mcb

So after much searching I gave up and made a magazine extension for my Browning BPS Stalker. When it's all said and done I have a +5 magazine extension giving the BPS a capacity of 10 rounds (9 in the mag +1 in the chamber). Now I know with Standard division the rules say 9 rounds maximum with only 8 in the magazine. So do I have to plug my tube so I can never load more than 8 rounds in the magazine? Or is this just a capacity limitation for the start of the stage? Not a big deal but I want to make sure I understand the rules. Thanks mcb