Quick summed it up well above. Are you a reloader? Recoil climbs fast above 1800 fps, especially off the bench. I used to load 300 gr Remington hollow points at 2100 fps. Standing got your attention but off the bench they just plain hurt. I backed them off to 2000 fps and while still stiff they were a little more tolerable, at least enough to verify zero. Whitetails hated both loads, tracking was straight down lol. Anything above 1800 fps I strongly recommend a lead sled for range time...
I am just starting into reloading.
we have a new rock chucker Supreme,
but we are total rookies. im starting with straight wall pistol rounds. 44 mag, 357 mag/max.
I have wanted a lead sled, but heard bad things about it damaging stocks.
I shoot 300 win mag, and 375 H&H mag pretty regularly. I would likley magnaport the 45-70. i have a couple magnaported guns, it helps. it takes away much of the muzzle jump. makes it more of a push type recoil. my 375 with factory loads, kicks like a hottly loaded 30-06. the 300 win mag is going in for porting soon.
LGS has a decent looking h&r 45-70, and a 223. both are priced at $399, both are scoped. I offered him 350 cash for the 45-70, he passed. but its been there a long time. he might come around pretty soon.