JD338
Since you shoot a .338RUM I dont think youll be put off by the .45-70s recoil, even with hunting loads. And for sheer fun a .45-70 with plinking loads is gentle enough my wife and daughters will shoot it and very easy on the pocket book. A warning, though, Marlinitis has no known cure! Fortunately you can scratch the itch. I started out with a Marlin 375 (.375Win), then got my .45-70, then a .30-30. All were used but have been great shooters.
Since I got the .45-70 Ive developed something like 19 loads for it considerably more than any other single firearm and more than almost any combination of two or three. Heres a sample of what I shoot:
Plinkers @ $2.50 per box of 20
13.5g HS-6, 300g or 350g Laser-Cast bullets, ~1100fps, ~7 foot-pounds recoil. Very accurate.
Practice loads (suitable for hunting) @ $9.50 per box of 20
A big dose of H4198, Speer 300g UCHP, 2247fps, ~32 foot-pounds recoil. Very accurate.
A big dose of H4198, Speer or Hornady 350g, 2150-2200fps, ~39 foot-pounds recoil. Very accurate.
Hunting load @ $24 per box of 20
A big dose of H4198, North Fork 350g bonded, 2183fps, ~39 foot-pounds recoil. Very accurate.
Big and cheap
A big dose of H4198 or Reloder 7, Remington 405g JSP, 1925fps, ~39 foot-pounds recoil. Very accurate.
Rhino Blasters @ $6.50 per box of 20
A big dose of Benchmark, Cast performance 460g WFNGC, 1812fps, ~43 foot-pounds recoil. Very accurate.
Too expensive for anything but Africa @ $93 per box of 20
A mid-30s dose of Reloder 7, Speer African Grand Slam Tungsten Solid, 1554fps, ~34 foot-pounds recoil. Best penetration of any load.
The practice and hunting loads are all suitable for elk out to about 275 yards if zeroed for Maximum Point Blank Range for a 6 diameter kill zone. (Max rise 3 @ 100, zero @ 173, down 3 @ 203, down 15 and 1500fpe at 275 yards for the North Fork load). The plinkers are great out to 50 yards. The Rhino Blasters penetrate 9 family-sized Minute Maid Orange Juice jugs filled with water. The Speer AGS Tungsten Solid exited the side of the 9th jug and buried itself too deeply into a clay embankment for recovery.
A lot of people like the Remington 405g at 1800fps for hunting and its a great choice when the range isnt too great. Others like hardcast. There certainly isnt any shortage of components to play with!
Scratch the itch but dont be surprised if a .30-30 sneaks in the door a short while later!