7 rum brass to 300 rum

Kevlak

Regular
EE Expired
Rating - 100%
2   0   0
Location
Calgary
Hey all,

Been having a hell of a time trying to find 300rum brass, but I've been able to find a couple bags of 7 rum brass. Are these ok to neck up to 300? Or is it preferred to neck down? Do I just run it through a 300 rum FL die? I'm pretty sure I've seen more unicorns than this brass. Even finding factory ammo can be hard, but I'd rather reload for it. Any info would be great!

Thanks,
Kevin
 
by comparing case diagrams i'm sure you could neck it up as the length to the shoulder is 2.3873 on both cases. shame to have to do it cause the 7rum is hard to find as well. i'm always interested in 7rum brass. I found 4 bags of the 7mm at wholesale a while ago.
 
Necking up a 7 rum case to you might be a shame, but it wouldn't be for me since I haven't shot the rifle in a year cause I can't find no brass, and that's a shame! I think I'll try it, got nothing to loose.
 
Back
Top Bottom