Pierced Primers > Ammunition

Posted: 8/5/2011 10:25:23 PM EDT

Shot my new upper today. I put 80 rounds through it. 20 rounds each of Federal XM223SP1 , Federal Fusion, Hornady 75 Grain HPBT and PMC X-Tac M855.

I had 3 pierced primers.

2 with Federal XM223SP1 and 1 with the Federal Fusion. The Hornady and PMC did not pierce.

Any of you having problems/pierced primers with the Federal stuff???

The XM223SP1 shot pretty good but I don't like pierced primers and it cratered my firing pin.

It looks to me like PMC is using CCI 41s in the X-Tac load.

Posted: 8/6/2011 3:58:13 AM EDT

[#1]

I wonder if they are using softer primers in the 223 stuff....

Posted: 8/6/2011 5:57:59 AM EDT

[#2]

Quoted:

Shot my new upper today. I put 80 rounds through it. 20 rounds each of Federal XM223SP1 , Federal Fusion, Hornady 75 Grain HPBT and PMC X-Tac M855.

I had 3 pierced primers.

2 with Federal XM223SP1 and 1 with the Federal Fusion. The Hornady and PMC did not pierce.

Any of you having problems/pierced primers with the Federal stuff???

The XM223SP1 shot pretty good but I don't like pierced primers and it cratered my firing pin.

It looks to me like PMC is using CCI 41s in the X-Tac load.

Did you measure your firing pin hole in the bolt?

Posted: 8/7/2011 2:10:52 PM EDT

[#3]

I'm pretty sure I read over in the reloading section that Federal primers tend to be very soft compared to others.

Posted: 8/7/2011 4:23:58 PM EDT

[#4]

firing pin protrusion gauge.

Your firing pin may be sticking out too far.

Posted: 8/7/2011 10:16:20 PM EDT

[#5]

Quoted:
firing pin protrusion gauge.

Your firing pin may be sticking out too far.

I'm going to check it just in case. Only takes a couple of minutes.

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