When I was at the range a few weeks ago, RO's jus hit the buzzer . And I jus put a fresh mag in and engage it. So I had to clear the chamber, mag, and of course the round ejected. When I went back, I picked up the round in my brass net and noticed that it had a very slight punch on the primer. I still put it back in the mag and it still fired ok.  I'm assuming it was from the pin. But it didn't go off or no slam fire. Though I don't know it was due to the primer design. Cause CCI 41 was known to have thicker cups? But, I never experienced a slam fire yet.

normal

When I was at the range a few weeks ago, RO's jus hit the buzzer . And I jus put a fresh mag in and engage it. So I had to clear the chamber, mag, and of course the round ejected. When I went back, I picked up the round in my brass net and noticed that it had a very slight punch on the primer. I still put it back in the mag and it still fired ok.  I'm assuming it was from the pin. But it didn't go off or no slam fire. Though I don't know it was due to the primer design. Cause CCI 41 was known to have thicker cups? But, I never experienced a slam fire yet.

These primers are specifically designed for military type floating firing pin rifles. They are less sensitive and have harder cups.  That dent is caused from the inertia of the firing pin coming forward when the bolt slams home.  It's normal operation.  Federal primers are supposedly more sensitive primers. Most don't like to use federal primers in these types of firearms because of this.  Ive never tried, I figured why chance it.  I too use either 41s or 450s for my ARs, never had a slamfire....  yet, hopefully never.

Here' sa  look at primer dimensions
http://www.radomski.us/njhp/cart_tech.htm

Here' sa  look at primer dimensions
http://www.radomski.us/njhp/cart_tech.htm

Nice.. thanks. Lots of other info too on there.

I just wiped out the supply of CCI 450 at SEC. They didn't have much left. Lots of others in supply.

Sometimes I feel like I'm visiting a crack den for my much needed supplies. It's like that sweat taste of black tar heroin in the veins. Not that I would know...

I just wiped out the supply of CCI 450 at SEC. They didn't have much left. Lots of others in supply.

Sometimes I feel like I'm visiting a crack den for my much needed supplies. It's like that sweat taste of black tar heroin in the veins. Not that I would know...

Damn....

I just wiped out the supply of CCI 450 at SEC. They didn't have much left. Lots of others in supply.

Sometimes I feel like I'm visiting a crack den for my much needed supplies. It's like that sweat taste of black tar heroin in the veins. Not that I would know...

addict.. 
Oh, btw, do you know if they had RL-15 in stock?

Sure do! About $33. I was able to pick up H4198 for my boolits but it was $37.