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piercing primers

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Hi I have a custom action and it is piercing CCI 400s it doesn't pierce BR4, CCI450, Wolf, or Win BR. . I sent it back to the custom shop and they didn't do anything to fix it,, needless to say it still does it. I am into the season and don't have time to send it back so I will just stay away from 400s. What should I do with it in the fall?
thanks Don
 
What is your load? CCI 400s are not rated for high pressure loads (55,000 psi +).

Not even that high. Remington introduced the thicker cup 7 1/2 way back in 1950 alongside the 222 Rem cartridge. The standard 6 1/2 with its 5 thou' thinner cup (0.020" v 0.025") was regarded as too weak for the Triple Deuce's 53,600-odd psi pressures. The CCI-400 like the Rem 6 1/2 is a 20-thou cup thickness job and like the 6 1/2 was designed for pressures in the 40,000s from early varmint cartridges such as the 22 Hornet, 218 Bee and similar.
 
I don't know # s . All other primers show no signs of pressure. Bolt lift is ok. 6bra at 2980 fps. I guess I will stay away from 400s for now.

thanks
 
You mention custom shop so im guessing its a remington. No need to send it back to them- they couldnt see anything wrong with it to start with they sure cant fix it when its good to go to them. Send it to carlsbad and itll be fixed and back before next weekend
 
I assume your custom has a .070 firing pin. normally this is good enough, but .060 which is what I do, is better. If you need it bushed, I can turn around in 2 days. Let me know if you need me to jump on it. --Jerry

Can you bush Bergara BMP 14 bolts?
 
Hi I have a custom action and it is piercing CCI 400s it doesn't pierce BR4, CCI450, Wolf, or Win BR. . I sent it back to the custom shop and they didn't do anything to fix it,, needless to say it still does it. I am into the season and don't have time to send it back so I will just stay away from 400s. What should I do with it in the fall?
thanks Don

What custom action is it ?

Check your headspace. It's likely you have your die set to bump too much. This happens to guys with dashers too.
 

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