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

[moses42ak]

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]

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.

 

[moses42ak]

Orkan, what COL are you running?

 

[orkan]

Orkan, what COL are you running?

3.690

 

[ManiacalArms]

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.

 

[Wild Monkey]

Truly awesome mega build. But but but but..... doesn't the 300 Norma Improved clearly outperform the 7mm?

 

[orkan]

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.

 

[moses42ak]

Any updates on your set-up? How is the throat holding up with the QPQ'd barrel?

 

[orkan]

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.

 

[moses42ak]

Any updates on this one?

 

[calib]

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.

How many rounds now?

I just received my 7-300 nmimp 24" the builder said on 1x fired brass and a very mixed load he was getting 3050 195berger, so I am excited to get this thing going and get brass formed.

 

[orkan]

How many rounds now?

I just received my 7-300 nmimp 24" the builder said on 1x fired brass and a very mixed load he was getting 3050 195berger, so I am excited to get this thing going and get brass formed.

I haven't been shooting it at all. It's taken a back seat since I have been working with my PRC Primal line of cartridges.


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