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-   -   Click then BOOM (http://www.firearmstalk.com/forums/f18/click-then-boom-76237/)

CourtJester 11-12-2012 07:43 PM

I've a 338 Lapua that I finally shot this weekend. Maybe it's normal (though I'm sure it's not) but I noticed wen shooting that I pull the trigger and I hear the firing pin hit before monster bang.

I reloaded my own rounds to sight it in with and it's the fist I've done for the 338 so maybe I jacked something up. Dunno. Lapua brass, 87 gr Magpro powder, federal primer, and 250 gr hornady bullet.

Any ideas or insight?

I've got a video I can post later where you can hear it but can't post it from my phone.

hmh 11-12-2012 07:48 PM

Sounds to me like your powder might be contaminated.

orangello 11-12-2012 08:26 PM

Maybe better earplugs?
;)

Dang! 250 grain is not small. I would like to see a bear shot with one of those, maybe a few of those.

robocop10mm 11-12-2012 10:19 PM

What you are describing is called a hang fire. Generally caused by primer issues. A primer that is not seated properly can do this. A slightly contaminated primer can do this. You did not specify the type of primer, only Federal. A Magnum primer is required to set off such a large charge of powder. If you were using the Federal 215 (Magnum primer), you may consider switching to a different brand as each make/type of primer burns a little different. Perhaps a Winchester large rifle Magnum primer will be hotter and more easily sets off the charge.

CourtJester 11-12-2012 10:52 PM

http://s63.photobucket.com/albums/h149/middletonmd/?action=viewĄt=CA192EE8-63F9-4C80-9068-BBD62CB6FDD2-558-000000355AC4EBA2.mp4&evt=user_media_share

That video might work from my phone. You can hear the click just before the bang.

Thanks for the help robocop. I am using the lighter large primers. They worked great on the 308 but I'll be sure to pick up some better ones this weekend.

orangello 11-12-2012 10:58 PM

says "private album"

CourtJester 11-12-2012 11:07 PM

Quote:

Originally Posted by orangello
says "private album"

:-(

.......

CourtJester 11-12-2012 11:42 PM

I think Robocop picked the issues but try this one. You can hear the click just before it goes off.

http://www.youtube.com/watch?v=MrYklLa5X0g&feature=youtu.be

willfully armed 11-12-2012 11:59 PM

Magnum primer.

Jpyle 11-13-2012 01:18 AM

Quote:

Originally Posted by CourtJester (Post 1011841)
I've a 338 Lapua that I finally shot this weekend. Maybe it's normal (though I'm sure it's not) but I noticed wen shooting that I pull the trigger and I hear the firing pin hit before monster bang.

I reloaded my own rounds to sight it in with and it's the fist I've done for the 338 so maybe I jacked something up. Dunno. Lapua brass, 87 gr Magpro powder, federal primer, and 250 gr hornady bullet.

Any ideas or insight?

I've got a video I can post later where you can hear it but can't post it from my phone.

Sounds like a hang fire. Do you keep your powder in a cool, moisture proof area. Might also be some other contamination...you should never hear the hammer drop on the primer...any delay between trigger pull and BOOM is not normal...unless you are firing a flint lock musket.


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