Remington primers

[fred2012]

I am wondering if it is common for these primers to fall apart after they have been fired I am using 300 gr mz expanders with a 120 gr of shocky loose powder in my black diamond 50 cal

[SWThomas]

I've fired quite a few of those and I haven't had them "fall apart" on me. Can you post a picture of one after this happened?

[gunrac]

Originally Posted by fred2012

I am wondering if it is common for these primers to fall apart after they have been fired I am using 300 gr mz expanders with a 120 gr of shocky loose powder in my black diamond 50 cal

No. Sounds like the breech plug needs attention.

[mnprohunter]

I have never had that happen, but have pretty much decided to stick to 777 primers or Federal Fushion primers.

[lemoyne]

Not at all normal, especally with that type powder. Check the touch or flash hole that sits next to the powder for flame cutting.

[UtahRob]

Originally Posted by gunrac

No. Sounds like the breech plug needs attention.

I agree , the only time i have had a primer blow apart was when the carbon was built up so bad i was getting a ton of blow back from the primer and it pushed the center out . I have shot 100s of Remington primers and only had it happen one time . If you have a tight fit/seal you may not have any blow back and it blowing your primer apart . Here is what mine did after my breech plug was plugged with carbon .

[fred2012]

here the peices of one I recovered

[SWThomas]

Originally Posted by fred2012

here the peices of one I recovered

DUDE! That is definitely not right...

[lemoyne]

I supect he has the old type open breach plug with a spring on it, not recommended for BH209.

[sabotloader]

lemoyne

You are correct, the Black Diamond is an open breech plunger style ML. Anytime you shoot a reall potent load with either BH or T7 you stand a real good chance of getting primer, battery cup and anvil separation.