I've shot all three of those calibers in either the Encore or the Contender and all will do just fine out to 150yds. But, without the "muzzle-tamer", all have stiff recoil. I don't have a 454 barrel, so I'll leave it out. But this comparison will give you some idea how much a "brake" makes a difference. My 45-70 has the muzzle-tamer and my 444 don't. Obvioulsy with hand-loads it can be different, but with factory ammo, the 45-70 with 300gr bullets is much easier on the hands than the 444 with 240gr bullets. Seeing that you're recoil sensitive and if you're set on the above calibers, go with the "brake". Another thing to keep in mind, the Encore is also available in some other fine deer calibers like 260, 270, 7mm-08, 308 and 30-06. If you're not stuck on the 454, 444 or 45-70, go with the 308. The 06 is stout, but the 308 with 150gr factory loads is not bad at all and its shoots great. I've taken a deer at 264yds with the 308, but keep in mind, I've also spent plenty of time at the range practicing with it. Sorry for the long post, but this will give some ideas to ponder before making a decision.