Sorry if this has been discussed, I read a lot of the posts here, but the thread with 4000 posts I haven't finished ! I have two new take-off 26" STW barrels I got on Gunbroker (Rem700). My plan is to dedicate this gun to shooting 160-gr bullets. ( I shoot 140-grainers out of my 7 RM.) If I get a 7 RUM it will only see 175-180 grainers. So my question is, if I want more velocity than the factory ammo, how fast can I expect to get, keeping the barrel at 26" and the bullet at 160-gr ?? I may get a longer STW barrel way down the road, but for now this is the package I'm going to work with. Thanks All !