7mm Norma Mag Improved - Fire forming & load proofing.

moses42ak

Well-Known Member
Joined
Oct 1, 2009
Messages
120
Location
Arkansas
Orkan, do you have a past 7NMI to compare barrel life to? Im on the Nitride bandwagon as well as the fast 7 bandwagon and I’m curious if you’ll be able to see a discernible difference in barrel life.
 

orkan

Official LRH Sponsor
LRH Sponsor
Joined
Jun 11, 2010
Messages
853
Location
SD
Orkan, do you have a past 7NMI to compare barrel life to? Im on the Nitride bandwagon as well as the fast 7 bandwagon and I’m curious if you’ll be able to see a discernible difference in barrel life.
Yes I did… but it was a dud. Pressured up hard at 250rnds and I never could get it to settle back down.
 

ManiacalArms

New Member
Joined
Sep 24, 2021
Messages
4
Location
Louisiana
Thanks for posting . I built 2 300Norma Imp recently one for customer one for me and we are loving them. But all its done is have me thinking of the the 7 norma imp. now . I was curious what I could get out of the 195s, But in a hunting length barrel. Ill check out your IG to keep up on the info. Thanks for posting.
 

Mazdayasna

Well-Known Member
Joined
Oct 16, 2017
Messages
265
Truly awesome mega build. But but but but..... doesn't the 300 Norma Improved clearly outperform the 7mm?
 

orkan

Official LRH Sponsor
LRH Sponsor
Joined
Jun 11, 2010
Messages
853
Location
SD
doesn't the 300 Norma Improved clearly outperform the 7mm?
Not in any way I can see. I think if I were competing in ELR competition or something, I might like to run a really heavy 30 cal bullet much slower, just for additional stability.

195gr 7mm moving this fast is about as impressive as I've seen out of anything other than a 375 Cheytac... but at least I can keep this rifle performing, where a Cheytac is super difficult to deal with in comparison.
 

orkan

Official LRH Sponsor
LRH Sponsor
Joined
Jun 11, 2010
Messages
853
Location
SD
Only 120 or so rounds fired. I pulled the barrel for some testing I need that chassis for… I’m in no hurry to burn up this barrel.
 
Top