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

Originally Posted by stug

7 RUM would be good, but you won't fit one in the magazine. Maybe if you extended the magazine a bit. When I had my 7 RUM I used the 180gr Berger hybrid. I had to single feed it, I hadn't extended the magazine. I got 3200 pretty easy with about 100gr US869. I got Greg Duley to rechamber it using his short throat reamer.
If you want the most velocity I'd try the 7 superfatso from Greg Duley it is based off the 338 lapua and improved. The easiest will be 7RUM.

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

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.