Re: 7mm Rem Mag or 7mm Ultra Mag???
I got 3100 with the 180 Berger VLD from a 7 Rem Mag but the barrel is 30" long. (68 grs of RL-25 in a 1 in 7 twist, 3 groove lilja)
Very recently I found a "like new" model 700 7 RUM in the used rack. It was an older LSS. It was produced in 1998. I also found that Rem lists two twist rates for the 7 RUM, either 1 in 9.5 or 1 in 9.25. I moly coated the bore then began shooting moly'ed 180 VLDs. I worked up to 90 grains of RL-25 with 90 grs making tiny clusters with a hint of bolt lift. I backed off to 89 grs for a velocity of 3100 fps from the 26" barrel.
Based on my experiences with three 7 RUMs you run into pressure with the 180 VLD right around 90 grs of RL-25/3100 fps with a 26" barrel.( I checked my notes) I can't imagine how anyone could get 3250 unless they had a much longer barrel, which the 7 RUM should have IMO.
Get the 7 RUM, don't worry about recoil, it isn't bad at all. The recent LSS was 8 3/4 lb after hollowing out the laminate stock and putting on a 4-12 leupold was very tolerable.