For a big 7mm in F Class your looking to shoot 180 and 184 Berger’s between 2900 and 3000fps. The 180 Hybrid is the most proven bullet. The biggest 7 Mag commonly used is the 7SAUM and some of the 7x6.5PRC variants which burn about 57-60gr of powder. The 28 Nosler depending on the powder burns 75+ and you don’t need or want the extra speed. Even the 7WSM is considered too big which has considerably less capacity than the 28 Nosler. It’s all about a balance between accuracy over long strings and speed with an appropriate bullet.I own a 28 now. During load development shooting the 168 VLD I found a very moderate load that was so consistent I stopped there. Its only rolling 3050. I understand thats 7mag velocities but that being said, it you dont push it to its max barrel life should be extended and recoil reduced.
Why would any 7mm cartridge ware out a barrel more then another if velocities are equal and powder weights similar?
At a lot of matches it’s more like 20 shots plus sighters. When a condition is holding you might get 3-5 shots down in a minute with a good target puller. We’ve all ran the ballistics and drooled over it but a barrel a match is a little cost prohibitive, lolIt be interesting though. Ballistics are def wild. My 28” 28 nos with adg brass can hit node at 3275 fps with the 180 hybrids and has touched 3400 but its got pressure there on hot day. I dont think it be safe. 90+ Grains LRT powder. 30-32” if allowed may see it. 4 shots in a row my barrel is hot. And its .790” at muzzle. If you have to do 10+ in a rapid string, i think it would melt down lol
I wonder if #Davidjoe has tried it....![]()