Home Forums Hunting & Shooting Winchester Collectors converting a pre 64 30-06 action to accept 300 H&H length cartridges

GF1: I think the magazine follower and extractor (from a pre-64 Winchester Model 70 in 270 Winchester caliber) would also need to be "changed out" and those costs and the costs/parts you mention convinces me that in todays market of exorbitant riflesmithing costs the OP would be much better off finding the correct pre-64 Winchester Model 70 "action/Rifle" to begin with.
Best of luck to the original poster with his project.
Hold into the wind
VarmintGuy