The best thing is to shoot something that has near the same kick level, or shoot the round you want to get. Recoil is subjective and everybody is different. I have shot 7 RM, 7 STW, 300 WM, 338 WM, and 300 RUM, all sporter weight rifles. None have muzzle brakes or any kind of special pad. I am 6'1 138 lbs, and I have no problems shooting any of them off a bench or in field positions. I love shooting my 300 RUM so much that my barrels toast, about 1100 rounds in 2 years. I have not developed a flinch, just got use to the kick, and I went in with the mindset that, "yah its going to kick, but I cant be scared of it". Just hold it tight in the pocket, and let it rock ya back. I have been scoped 3 times, laying prone with stout 220g bullets, but I did not let that get to me. Recoil is different to everybody though and everyone has there thresholds. I would say the recoil would not be bad in a sendero weight rifle, but thats just ME. If it turns out to be to much, put a limbsaver and it should cut it down to at least a 270 or so. Performance wise, you could probly add another 100-200 yards with the advantage going to the STW.