I see a lot posts about converting a 30-30 to a 7-30 Waters. But would a 35 Marlin conversion to a 250 Savage be better? I checked Midway and they carry round nose 257 bullets in 60, 75, 86, and 117 grains. The Lee reloading manual shows recipes for 60 grain bullets up to 3667 ft/sec. Talk about a good varmint load. The Lee reloading manual has recipes for 75 grain bullets at 3460 ft/sec, 86 grain bullets at 3297 ft/sec (that's better than a 243) and 117 grain bullets at 2789 ft/sec. Of course, the ballistics are probably for a 24 inch barrel. The Lee manual does not state the barrel length. The 250 Savage OAL is shorter than a 35. The bolt face would need to be opened up a little, but everthing else should work.