Not used a 270wsm but did have a non-suppressed 300wsm when they first came out for a couple of years it kicked like a bull elk because it was light and barrel heated up quick culling mobs of goats and deer, I cooked the barrel in 500-600 rounds, long strings of fire. A standard 270win would of fared better, my Sako 270win has done nearly 4000 rounds and shot a 6” five round group at 720m on steel with a 2 o’clock 5mph wind and 12 degree down hill the other day. A decent scope, good ammo and a lightened trigger with a ballistic app is more important than the caliber.
As @Ryan_Songhurst has said if not reloading a standard 270win will work, latter you might get into reloading and push it farther out with higher BC projectiles.
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