Primers not sure which to use

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WAREWOLF

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Hi need help with what primer to use

I'm reloading .308 WIN for my M14, I have Remington 9 1/2 large rifle primers. I know large rifle primers is what I have to use but will they stand up to a semi auto like the M14.

Just don't want to have a slam fire

Any help is great thanks
 
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Henry has Nato primers for $50.00 a thousand, which is a bit more than standard.

Even with standard primers, as long as you always load from the mag and not by dropping a loose round into the chamber and letting the breeech block fly forward you shouldn't need to worry about slamfires.
 
i heard that "Match" type primer were the softer.
except that i say its pretty standard.

i used normal primmer in my sks (floating pin) and never had a problem, not even a ding from slamming the bolt close.

i am not an expert either, so wait for another opinion.
 
The general rule for free floating firing pin rifles like the M-14, M1 Garand, SKs etc is to make sure the primer is fully and properly seated (which you should do with every primer on every cartridge anyways.) The general voodoo rumor among loaders is that Federal primers have a softer cup and are more prone to slamfires. CCI Win Rem Tula etc are all fine, some feel you need milspec and there is nothing wrong with that, but millions of rounds are loaded and fired fine with these normal brands mentioned above.

Your Rem 9 1/2s are fine.
 
ipscgraz said:
Check out budget shooter supply (In the banner at the top of the page)

Henry has Nato primers for $50.00 a thousand, which is a bit more than standard.

Even with standard primers, as long as you always load from the mag and not by dropping a loose round into the chamber and letting the breeech block fly forward you shouldn't need to worry about slamfires.
Click to expand...

This is the correct info for you. The Nato primers are the best to use and never never drop a round into the chamber and then let the bolt slam shut on it. Make sure it has to take it from the mag or the EnBloc if using a Garand.

I talked to an old time Military guy years ago and they were taught if they had to load one shell at a time they were to drop the shell in the chamber and then ease the bolt closed and to make it go all the way forward by hitting with the heal of your palm.

I have had a slam fire once and it not something you want to experience.

Graydog
 
Fed match primers can cause slamfire on an M14. Had it happen a bunch of times so I stopped using those primers for that rifle. It kinda sucks trying to string together a nice tight group when the rifle keep ripping off 2 and 3 round bursts. Thats a bit hard on the concentration to say the least.
 
If in doubt, CCI 200, that is all I use, and ever will use in my M14.
And yeah, make sure you seat them good. I use a ram primer to be sure.
 
I use CCI #34 Nato Specs, specially made for 7.62 .... work just fine, a little more expensive but not that much ... I paid 14$ more for one thousand primers ...
 
I have used Win large rifle primers in my semi autos without ever an issue. As stated above, it's extremely important that you seat the primer to it's proper depth. The sks and Garand will actually leave a primer dent due to a floating pin) when the action slams shut, thats why the depth is so important. I double check every round I make.
 
On military 7.62 ammunition the primer must be seated and recessed .008 below the case. And the majority of slam fires are caused by using reloads that do not have the primer seated properly. All American made large rifle primers have a primer cup approximately .027 thick. ;)



My Hornady manual lists standard Winchester WLR primers with their .308 Winchester M1A service rifle load data. Again another reloading manual that lists primers other than CCI Military primers No.34 and No. 41 for service rifles. The only difference in CCI Military primers is the anvil sits lower in the primer cup and the firing pin must travel further to ignite the primer. (less sensitive)

If you want to be ultra safe then use the CCI Military primers and uniform the primer pockets on your "non-military commercial cartridge cases". Meaning what good are these military primers if the primer isn't seated .008 below the surface of the cases. (recessed) Which defeats the purpose of having a shorter anvil.

CCI #34 - commercial version of the fully-qualified DOD primer for use in U.S. military ammo. With this primer there is more 'distance' between the tip of the anvil and the bottom of the cup than with other CCI SR primers. .027" thick cup. Same primer mix as CCI 250 magnum primer.

CHOOSING THE RIGHT PRIMER - A PRIMER ON PRIMERS (Very good read) ;)
http://www.sksboards.com/smf/index.php?topic=56422.0
 
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