Thread: Big Sevens... Which one for the 195 Berger.....?

7mm Practical sounds alright but I hate rimmed cases and I reckon it looks a bit weird.

7/375 would be my pick.

Norma

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Originally Posted by 300_BLK

So the Gunsmith said RUM's eat barrels at too fast a rate and recommends the 7 LRM / Dakota or 7-375. (personally don't care about Barrel life)

Would the practical (7 - 300 Win) be the same? or a STW?

I can / will get a wyats box fitted for a longer magazine.
@6MMBR I know what I want in terms of performance mate, I'm just smart enough to know what I don't know and defer to those who have already burn't out a few barrels in a big 7mm rig. I have shot goats and wallabies to 1100m mate, just want to go a bit further is all and hopefully its a half moa gun

Had a 7 lrm and still have two close mates that still run them do about 3k with 180's easily in a 24 inch tube brass is expensive as other than that they're nice I'd go bigger though either 28 nosler or neck down 300 Norma if it was me

If you want velocity then barrel life will suffer. The smaller capacity cases will give slightly more barrel life. The bigger thing will be how you shoot it. Long strings of shots will eat the barrel faster, no matter what the velocity. Kirby Allen on longrangehunting.com had some good info on barrel life in his 7mm Allen magnum, basically a 338 lapua improved and necked to 7mm.

I think that you are on the right track with the 7-300 Norma.
Seems about ideal to push the 195's and will be a great long range hammer!

I had a 7mm/338 Norma mag improve. Man it had some boogie and hit bloody hard. 180 Berger at 3250. Just make sure you get a good smith to build it for you

Originally Posted by MSL

I was using 98gr of us869 for 3275fps with the 180 but now 84gr 2225 for 3245fps. Considered the 195 but need a 1:8 twist and the gains are not dramatic enough for me. Building a rifle from scratch though I'd probably give them a go

Your getting good speed firing a 7mm projectile from a 338 barrel.

I 'was', not currently though

7MM-300NM my suggestion!

So after a lengthy discussion with my smith and another owner of a 7-300NM (and plenty of encouraging from all of you) I will go with the original concept of a 7-300 Norma.

Rem 700 Action
25.5" Bartlein fluted Barrel, T2 brake
Brass Norma 100X
Bergers on back order unless I can convince @Kiwi Greg to give me one of his boxes that are squirreled away somewhere...
Stock.... work in progress but hoping Sendero / HS


Will post updates on loads and pics when complete...and the load dev story.

Thanks for the constructive input

Originally Posted by 300_BLK

So after a lengthy discussion with my smith and another owner of a 7-300NM (and plenty of encouraging from all of you) I will go with the original concept of a 7-300 Norma.

Rem 700 Action
25.5" Bartlein fluted Barrel, T2 brake
Brass Norma 100X
Bergers on back order unless I can convince @Kiwi Greg to give me one of his boxes that are squirreled away somewhere...
Stock.... work in progress but hoping Sendero / HS


Will post updates on loads and pics when complete...and the load dev story.

Thanks for the constructive input

I have plenty of brass & Bergers here, might even have some dies

@Kiwi Greg have u got yours going?

Originally Posted by Echo

@Kiwi Greg have u got yours going?

Yes & no, its going but having some teething issues,

3100 FPS happily with the 195s out of 28"

The speeds no teething issue��

Is the pressure and jump an issue?

Originally Posted by Echo

The speeds no teething issue��

Is the pressure and jump an issue?

No having accuracy issues at the moment.