Home Forums Reloading Varmint Rifles TULA small rifle primers: which ones?

They sell TULA small rifle primers in 3 varieties:

regular 223
magnum 223
magnum 5.56

Which ones are guys using for the best performance?

I've only used the standard ones so far, with very good results in most cases, and even in the loads where they don't shoot as well as with other primers, the accuracy is still decent.

Magnum 223 (mine say SR magnum) for an all purpose SR primer is my experience.
Cup is supposed to be harder and they are not really hot. About like a R 7 1/2

I can get Rem 7.5 or TULA. Which would you guys pick for all-around use in 223 and AR?

Rems.

Dakota Deer,

While 7-1/2's work fine, if the Tulas are a better price, I wouldn't hesitate to try the magnum or 5.56 version. (The standard SR's cup is .022" thick, a little thin for AR use.)

Thanks for the info. I'll probably just stick to Rem7.5.

Am I correct in assuming that they still have the slightly thicker/harder cup and thus make a good all-around primer?

Yep.

Eehhhh.... Thicker than what?http://www.jamescalhoon.com/primers_and_pressure.php

As far as for "AR use" cup thickness is not what provides mil-spec insensitivity. Sensitivity is controlled by anvil height alone.

Well, gee, all the primer manufacturers I�ve talked to say that primer cup thickness does have a great deal to do with whether they recommend them for AR-15 use.

Did forget to mention that, despite what Calhoon says in his article, some primer cups are not made of cartridge brass, and the Tula small rifle KVB-223 has a cup made of copper, so Tula doesn�t recommend it for AR use.

The point of the article was for the recorded thicknesses. I agree construction varies, and so can hardness. Which is precisely why the mil-spec for sensitivity revolves around the anvil height, not what metal is used, or how thick they are.

There was a hardness test done over on sassnet.com this past January, for those interested.

http://sassnet.com/forums/index.php?showtopic=216752

If someone wants safety for a floating firing pin, buy a primer built with that in mind. Who owns who, who uses what for parts, changes. Remember the complaints(20+years now) about Winchester primers being "too hard"? Well they are still "hard", and thick. Sensitivity is what changed, via the priming mix/anvil height. Hard, or thick isn't what you should hang your hat on.