New Lot CCI 450 issues

superde · Sunday at 9:26 PM

Anyone had ignition issues with this lot of CCI 450’s? I had 3 rounds not go off during a match a few weeks back. Two of the three rounds went off on the second attempt. They are seated .005” deep in Alpha Brass. Never had an issue with this rifle until this new lot of primers. I’m going to try my spare bolt next time I go out to the range.

straightshooter1 · Sunday at 10:38 PM

superde said:
Anyone had ignition issues with this lot of CCI 450’s? I had 3 rounds not go off during a match a few weeks back. Two of the three rounds went off on the second attempt. They are seated .005” deep in Alpha Brass. Never had an issue with this rifle until this new lot of primers. I’m going to try my spare bolt next time I go out to the range.

Seems to me, being .005" below flush is a good place to be. Of course, it depends on how deep you pockets are??? How did the primers look in term of how the firing pin struck them?

Yeah, check with that spare bolt is a good idea. It might be a firing pin issue is you're looking at light strikes on the primers???

superde · 2025-03-24T06:40:32-0400

These were two of the failure to fire rounds, primer strikes look good. I sent the picture to Tate/Impact as well and he agreed.

LR1845 · 2025-03-24T07:19:53-0400

How many rounds on this action? Does your action use a trigger hanger? Are you sure the primers are seated deep enough?
When's the last time you did a full tear down and cleaning of the bolt? Or last time you changed the spring?

Only time I have ever had these issues is one of the above or the cocking piece dragging on the sear.

Maurygold · 2025-03-24T07:46:51-0400

My first guess would also be it’s related to the bolt/ firing in more so than those primers primers being bad. But anything is possible

Lwood · 2025-03-24T08:58:56-0400

I don't know, but those primer strikes look a little on the light side to me.

straightshooter1 · 2025-03-24T11:46:55-0400

superde said:
These were two of the failure to fire rounds, primer strikes look good. I sent the picture to Tate/Impact as well and he agreed.

It's really hard to tell in those pictures as they kinda look a little light, but not enough where I wouldn't think it'd keep them from igniting.

The other place I'd take a close look at is the case headspace; a short case headspace can cause this issue too???

superde · 2025-03-25T06:28:27-0400

Thanks gentlemen. I had 400 rounds fire without issue with the last of my old lot of 450’s with this barrel. There are probably over 30k rounds on this action and a lot of dryfires. Trying the extra bolt I carry in my pack should show if it is a firing pin spring/firing pin issue (bolt has probably 100 rounds on it).

Zebulon · 2025-03-25T07:11:12-0400

I’d either way pop the primers out

And see if you can hit them with a nail/ hammer

Just to see if they’ll even go off!

I do this with junk ammo like wolf and Tula as they def have soooooo many mis fires

And playing cartridge surgeon is always fun

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