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Standard SR primers vs match/magnum/military
#6
Yep. It's only happened to me twice. That is, I've had double-fires, which I assume was caused by a slam-fire of the second round. First time was in an AR-15 and the second time was in my old Remington Model 8 that my dad handed down to me. What' interesting is that this rifle originally came with a floating FP like the AR. But when I replaced the original (broken) FP with a newer-production one from Numrich's I believe, I also retrofitted the FP spring used in the later Model 81? It was no longer free-floated. Spring seemed kind of weak to me though. When I let a friend shoot it one time, he fired off a couple of shots before his next one went Ba-boom! And two .35 Rem cases fell to the ground.

Anyway... I do know the thicknesses. Seen that chart before. The CCI400s are the thinnest. My original go-tos, the WSR, are a hair thicker than that at .021" and I read somewhere that Win might use a harder alloy, and so the WSR are considered by "some people" to be GTG for AR-15 use. They've worked fine for me, in any case. No pun intended.


Just for peace of mind I pushed out the #400s and put in #41s. I'll have a look at the popped-out #400s more closely later to see if they look okay. I glanced at one and its anvil looked okay, but I wasn't using a magnifier to check. TBH, I don't like the idea of getting my eye that close to a primer! Let alone the business end. Seems like tempting fate. LOL But as long as I use my hand lens, there's a thick piece of glass between eye and mini-bomb and the odds are probably in my favor.

FWIW, when I bought the #41s they were at least $10 more than the standard primers. I remember thinking, "these military primers must be good!" Thicker cup, hotter bang. Probably for reliable use in MGs.
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Standard SR primers vs match/magnum/military - by SDW - 10-14-2023, 07:25 PM

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