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Posted: 4/29/2014 7:16:39 PM EDT
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I was out shooting some groundhogs this evening and had a pierced primer in one of my reloads. I killed the hog and noticed no difference until I ejected the brass. I was shooting a heavy barreled Handi-Rifle in ..223.
Load was as follows: 24.1 Grains of Ramshot X-Terminator Lake City 12 Brass trimmed to 1.75 Sierra 52 gr. BTHP Match Winchester Small Rifle Primer No Crimp The brass ejected fine and I did get any gas to face. I din't find any damage to the breech face either. I have not got these loads across the chrono but I am below the max load of 24.7 listed by Sierra and 24.6 listed by Ramshot. THere was no soot or discoloration of the primer around the hole in it. I have acutally been have trouble with light strikes after the having the trigger pull lightened if I do not follow through on the trigger completely. THe transfer bar seems to drop out fast if you don't have a complete follow through. I will try to get a picture up tomorrow after work. Any thoughts? I also killed a skunk and the wife put up that story in GD if anyone wishes to read it. Needless to say I didn't smell to good for a while after the wind carried to spray over to my postion. |
| I had a K of Win SR primers a few years ago that pierced in my 221 fireball. The fireball loads were mid range and it runs at a mild 45K psi. No way my pierced primers were from excess pressure. Used em up, replaced the firing pin and never purchased another Win Rifle primer again. YMMV. |
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Quoted:
my first thought goes to maybe looking at the rifle before the loads. from your description it sounds like the firing pin might be doing the damage rather than a hot load. This. My AR's pin requires reshaping every 2,000-3,000 rounds as it gets a dimple that causes punctures, especially with Winchester primers. |
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I had one of my buddies that has been reloading for a lot longer than I have to look at it today. He said it looked like a defective primer. I had some other fired brass to look at, and he said the firing pin strike on those looked fine. I will still post a picture when I get home from work. I jad to use the work camera because it jas a macro setting. Thanks for the responses so far guys. I am still very much a newbie at reloading altough I have been studying it for over a year now. Posted Via AR15.Com Mobile |
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Same thing here. Out of 250 rounds loaded with Winchester small rifle primers I had a total of 11 pierce in 6 different AR's. Switched to Remington 7 1/2's and the problem went away. Went ahead and replaced all firing pins since they are cheap, just to be on the safe side.
Saving the rest of the Winchester primers for when I get a smaller caliber bolt gun. |
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I also had two pierced Winchester Small Rifle primer about two weeks ago. Was working up some 64 grain Nosler BSB loads and wanted to compare CCI 400's to Winchester SR's . Of the thirty rounds loaded with Winchester primers, two pierced. No problems with the CCI except a little more flattening on hotter loads. Posted Via AR15.Com Mobile |
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Quoted:
This. My AR's pin requires reshaping every 2,000-3,000 rounds as it gets a dimple that causes punctures, especially with Winchester primers. Quoted:
Quoted:
my first thought goes to maybe looking at the rifle before the loads. from your description it sounds like the firing pin might be doing the damage rather than a hot load. This. My AR's pin requires reshaping every 2,000-3,000 rounds as it gets a dimple that causes punctures, especially with Winchester primers. I have the exact opposite problem. The punctured primers cause dimples in the firing pin.. My firing pin gets dimples from the hot gasses coming out of pierced Winchester primers. I switched to CCI primers and the problem went away. |
| I had a problem in my AR with Magtech 7 1/2 primers in soft .223 loads piercing (2890fps from 14.5" barrel). It started to happen halfway through a box of 1000 and picked up the further I got into the box. I stopped swapping firing pins when it happened after about $25 worth of firing pins from BCM, and I'm almost done with the Godforsaken lot of primers so I can switch to CC #450s. |
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