Interesting discovery (for me at least)

[codyadams]

Thanks Cody. I've since talked to some people that have used them in the dead of winter here in Idaho while hunting wolves. Never a problem. I'm going to run with 'em this fall. Tested my load to distance and it's .5 MOA out to 800. I'm putting that rifle away until a month before the season.

Excellent. I have found the br-2's as well as the br-4's to be excellent, and have significantly lower e.s. numbers than standard primers in my .260 Ackley as well.

 

[Jeremy338]

In my experience with the 7 mag and 300 mag with 4831sc which is my goto. 210m primers work well. Never seen a hang fire but that's just my experience. 7 mag should be around 64-65 grains 300 should be around 73. Great combo up in the northwest where it gets cold.

 

[Lupey]

View attachment 99621 Ran into something interesting. During load development for my 7mm magnum, I've been struggling with finding a good load with 168 h-vld's . My last barrel shot bugholes with them using 70gr of H1000 lit by CCI250's. Tried H1000 and Retumbo lit by fed215's and CCI250's with not much love. I talked to my smith and he said to try BR2 primers. I've got a bunch of those for my 260, so hell, why not.

Well, magic happened at 69grains of H1000 using BR2's.

I've found a couple claims on the internet of large rifle primers having issues at sub zero temps with ball powders (which H1000 is not).

Has anyone here actually had a hang fire or failure in cold temps with non-magnum primers?

I recently started using BR2 primers and have a good many hang fires,I also have tried some other powders like Mag,and H1000,loading the 26 nosler never had this problem in 40 yrs of reloading.

 

[Lupey]

First time posting

 

[Rich Coyle]

I recently started using BR2 primers and have a good many hang fires,I also have tried some other powders like Mag,and H1000,lo weaing
the 26 nosler never had this problem in 40 yrs of reloading.

I had several hang fires with BR-4. The factory increased the firing pin spring. It gained 100 fps and never had another hang fire.

 

[tbrice23]

I use BR2 with Reloder33 in my 28Nosler. 100% Positive ignition, tested -7 ° F.