Good thing about rebarreling your action is you can spin the twist a lil faster than 1:10. I load 140’s in the 270 and 150’s in the 300. With a range of bullet weights between 90 and 150 grains, it could easily handle woodchucks and coyotes, as well as black bear. So a .270 Winchester round exits the barrel with kinetic energy equal to the energy required for linear vertical displacement of 3780 pounds through a one foot distance, while a .300 WSM Winchester Short Magnum round exiting the barrel has energy equal to the amount required to displace 3580 pounds over the same one foot distance. Compound that with the feeding problems that the WSM line of cartridges can exhibit—I’ve seen a few rifles that feed reliably, but most are finicky at best—and the way the short, fat case quickly eats up magazine space, and I feel the original .270 Winchester makes a better design than does the WSM.
- menor retroceso (en armas de cartuchos comparables ejem.
A 180gr bullet at 3,000 fps carries about 20% more momentum than a 140gr bullet at 3,200 fps, even using the same powder charge, the .300 is going to have significantly more recoil. If I did I would not want to be slightly under gunned like I was a few months ago. Had Winchester changed the twist rate, allowing the .270 to run heavy bullets, we may never have heard of the 6.5 Creedmoor, but alas, history is history. Typically, all three are provided with a 1:10″ twist rate, which limits the bullet weight to 150 grains.