I have a 7mm WSM Browning M-1000 Eclipse that has been a good rifle for target shooting and whitetail deer hunting. Before I burnt the throat out of the stock barrel, the rifle and I could shoot less that 1 MOA at 300 yards. The loads that seems to work OK were 62 gr of VV560 poured into a Winchester Brass, Federal 215M primer with a 168 VLB Berger at .010 off the lands giving 2850 fps, or, 58.5 gr of IMR4831 with the same brass and primer but with a 168 Serria Match King which gives the same 2850 fps. Now that hunting season is over, I want to setup to 1000 yard target shooting and eventually move up to hunting western Antelope, Muley's and Elk. Can y'all recommend some changes I should make to the new barrel fo the Eclipse and the bullet load to prepare for 1000 yard shooting. The old barrel is 26" without a muzzlebrake.