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N1YDP
01-20-2014, 02:01 PM
how do my primers look.are they normal or high pressure?
40 s&w,5.5gr red dot,145gr cast.

seaboltm
01-20-2014, 02:04 PM
looks fine to me

Hawkeye45
01-20-2014, 03:47 PM
Looks like a batch of thin primers, or too pointed a firing pin. Just my 0.02

Mr. Ed

Scharfschuetze
01-20-2014, 11:22 PM
Looks like some primer cup material flowing into your firing pin hole on the upper row of cases. Of course depending on your primer cup strength, that could mean something or it could mean nothing. Still, I back off when I see such signs.

You might post your load and your firearm type for more details. Devining pressure from a photo (and primers too) is guessing at best. Still, clues are clues.

leadman
01-21-2014, 02:34 AM
I would check the tip of the firing pin as some of the primers indents look like tear drops. I had a piece of metal stuck on the end of a firing pin one time that did the same thing. A chipped tip also would do that.

leftiye
01-21-2014, 06:36 AM
Loose firing pin hole, or small firing pin. Soft primer cups. Edges of primers aren't flattened, so not too high of pressure. Change primers.

HNSB
01-21-2014, 06:41 AM
I had a .40 Springfield XD that did that all the time, even with factory ammo.

bhn22
01-21-2014, 11:54 AM
The teardrops are usually a sign that the gun unlocked a bit prematurely. You'll see this on guns that aren't fully broken in. You do appear to have a slightly oversized firing pin hole, or perhaps a slightly undersized firing pin. Ruger has had a few issues with that on a few guns, yours doesn't appear to be very bad at all. It's impossible to gauge pressure by primer appearance, no two manufacturers seem to make primers the same, much less the same manufacturer and lot to lot variations. All in all, I don't see anything alarming in the least. Party on!

blixen
01-21-2014, 12:28 PM
+1 w/ Bhn. IMHO having flattened a few primers I'd say pressure's OK, but something appears funky , though not necessarily dangerous, with the firing pin. Would help to know what you are feeding it.

N1YDP
01-22-2014, 12:18 PM
shooting a sw40ve