The STW is very much over rated... those big cartridges really benefit from hot loads in 28 inch barrels. The original data that made the 7mm STW look so good was worked up that way... and the majority of those who rechambered their 24 and 26 inch 7mm Rem Mags were very disappointed in the velocities they were able to get.
If you are build a 24 or 26 inch 7mm Magnum stick with the 7mm Remington Magnum or the 7mm Weatherby Magnum.
Same goes for the 7RUM, though it's perhaps a bit more efficient than the STW.
After owning three 7mmstw rifles, and one 7mmRUM rifle,I find the 7mmstw more efficient than the 7MMRUM.



























