Dober: Seems like 25" 270's kick up their heels....Fred Barker had a great article on the 270 in Precision Shooter IIRC, with powders like MRP II,and RL 25 in the 270....he was getting your velocities from a 25" PacNor on an FN Mauser..

I've posted this before,but the Barnes listed max load of RL 25 with the Barnes 130 XLC did 3200 from my 22" M70 Classic FW.

Most of us(me included) get in a rut with powders in the 270...it can benefit from slower burners than the H4831 range.




The 280 Remington is overbore.

The 7 Rem Mag is over bore.