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Posted: 4/15/2009 3:03:36 AM EDT
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as i ponder the idea of reloading as expressed in this thread - http://www.ar15.com/forums/topic.html?b=6&f=42&t=277038&page=1 i see that primers are about as rare as gold. so i figure to look around for them as i continue to see whether or not i will be able to deal w/ the movement of the reloading procedure. now my question comes from this - i shoot 9mm, 45acp and 223/5.56. i shoot 9mm in pistols and 45 and 223 in ars. i currently have an oly blowback 45 upper but was looking into the di 45 upper that is being made by the member ronaldmwilliams (pretty sure that is his member name). now the oly setup has a spring in front of the firing pin, but the setup ron uses doesn't and therefore i am a bit worried about slam fires, also slam fires from the 223 ar too. i have seen "military" primers from cci for 223 but wanted to know if in fact they are that much harder and if that is the case, i will look for those for the 223. as far as the 45, what is the hardest primer so i don't have to worry as much about a slam fire? i am always very muzzle disciplined, but i really don't like a firearm to fire unless i pull the trigger. also, after reading some online references, seems certain powders recommend certain brand primers. is this because the powder company makes these particular primers or is there a reason for it? also, i have read that 45acp has brass that is either small or large pistol primers. is there a benefit to either one? are primers a bit more generic in the sense that i can get a primer for 9mm that will work w/ most bullet/powder combos and the same setup w/ others or do i need certain primers for certain load workups? thanks again |
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also, after reading some online references, seems certain powders recommend certain brand primers. is this because the powder company makes these particular primers or is there a reason for it?
That's just what they used in their test. Reduce their max by 10% and work them up with any brand you choose. also, i have read that 45acp has brass that is either small or large pistol primers. is there a benefit to either one?
No, but large is most common by far. Be sure to sort your .45 pickups to find any SP cases. are primers a bit more generic in the sense that i can get a primer for 9mm that will work w/ most bullet/powder combos and the same setup w/ others or do i need certain primers for certain load workups?
You should work up your loads and test them for safety any time you change components, but it's fine to use one kind of primer for all your different loads. I only keep one kind of primer in each size on hand, and use them for anything that calls for that particular size. Ie, all my pistol loads are designed to use CCI SP, all my rifle loads use CCI SR or Win LR, etc. |
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You will be fine with any primer in an AR, as most of us have used every brand in the EBRs that are available...but, if it really bothers you, stick with CCI or Remington 7 1/2s. You can substitute any brand primer for the other as long as you are not switching Magnum and Non-Magnum around without working up your loads first, which you should do, also, if you switch brands. The reason that you see certain primers being used in certain load manuals is just a shot in the dark, or they chose a primer that made them look the best in the manual. It really doesn't matter what they use, because you will almost never get the same results as the people at the manufacturer did because you do not have their test barrel on your gun...so why would you not substitute the primer if need be?
The only .45 brass that I am aware of that uses Small Pistol primers is marked with the Headstamp of Winchester NT. |
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