Hello shooters! I am from the Carson Valley in Northern Nevada. I am a handgun guy, and have rifle hunted for years, but want to work on long range rifle shooting and, since I live a state with some wide open areas, long range hunting as well. I have a specific question I have not seen addressed in any of the posts I have searched. I have inherited a sporterized P17 Enfield that has been re-chambered in 300 H&H Magnum. I have to replace the barrel anyway - ruined muzzle crown and pits in the bore - so I want to change the caliber to something more modern. I really like the 7mm Rem. Mag., but have been told the bolt face was changed for the 300 H&H, so I have to go with something else. 7MM STW was suggested. I DO NOT load my own ammo, so factory ammo is my only option. Given the above, what would you guys who know about this stuff suggest? I was thinking Pac Nor for a barrel, and would make it as long as necessary to get the best out of the chosen cartridge. Very much looking forward to enjoying this forum. Thank you in advance for all your help.