I'm running a 28" Savage Criterion barrel with a 1/8 twist in a .260. It gives me 2870 fps with 42.6 gr of H4350 with a Hornady 140 ELD-M in Lapua brass.
How well do you like the Criterion barrel? Has it met your accuracy expectations? I'm thinking of doing a Criterion remage barrel on an old Remington 700 BDL Varmint Special.