loading for 223

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geist262

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Hey Guys, I never loaded for my AR before. With the current panic, I decided to do that. Anyway, I have a can of h-335 powder. I do not have any primers, but I did find small rifle magnum primers. Can I use these?

Thanks
 
Mag primers will work fine with H 335 in .223. If the data shows standard primers, stop a couple of tenths short of max, or if other signs say to stop.
 
You can use the magnum primers but use the normal precautions of starting at minimal loads and watch for any pressure problems. I would recommend getting a copy of Lyman's 49th handbook since you are inexperienced. At least one reloading manual is an absolute necessity and more than one is better. I think the Lyman manual is especially good for starting out. Good luck and enjoy.
 
I am not an inexperienced loader. I have multiple manuals such as Lyman, Nosler and hornady. I have loaded 44 mag, 9mm, 300 win/wby 308 win etc. I never thought I would load for the AR due to how cheap it WAS to shoot. I am glad I saved my brass. Anyway, thanks for the info on the primers. Much appreciated!


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Actually the Speer manuals say to use a small magnum primer with H335. I am just bummed because I have 10K SRP and no magnums. Right now I am just having fun with the Reloader 7 and the AR bullets now. Pretty accurate for a lead slinger. Should have bought one 20 years ago, but I was still getting over carrying the M16 at that time. Didn't want anything to do with them dang black guns.
 
Gab, thanks for your service. I know a guy that was a Nam vet and he also does not like the rifle. Bad memories perhaps.


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My apologies if I offended you by assuming you were inexperienced because you had not loaded .223. There seem to be so many people just starting to reload I wrongly assumed you were one of them. Best wishes and good luck with your .223 loads.
 
Kerreckt, you were just trying to help. I'm not offended at all. Don't sweat it.


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Speer recomends Mag primers for all ball powder. I have loaded thousands of round with standard primers and ball powder of many different calibers both hand and long guns with zero problems.
 
For semi-auto .223(ARs) you'll want mag primers no matter what. Floating firing pins and all that...
 
Mmmmm?

Mag primers are no harder or less sensitive then Standard SR primers, so it has no bearing on slam-fires.

CCI does make a harder, less sensitive #41 military type small rifle primer.
But good luck finding any.
http://www.cci-ammunition.com/products/primers/primers.aspx?id=30

But regardless of all that, I have used standard CCI SR primers in AR's and Mini-14's for about 40 years no.

Never had a slam fire after I found out about smashing them in with intact military primer crimped cases.

rc
 
Uh huh...

I see the little dents in the primers on ejected live rounds. There is a reason for the thicker cups on the mag primers. *shrug*
 
Mag primers sometimes have thicker/harder cups. Sometimes they burn hotter. Sometimes they even do both. Manufacturers sometimes label their stuff weird, too. Thinking that "magnum" in front of the word "primer" means anything particularly specific and repeatable is a mistake.

"223" designated primers should have harder cups. But it doesn't end there. Tula 223 primers also burn hotter than Tula SRM, according to the some of the retailers.
 
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