Let me suggest, the 6.5 X 55 Swede. I have three or four of the service rifles, and two modern sporters. One a featherweight M70 and a Classic Rem M700. There is absolutely nothing wrong with the 6.5 X 55 Swede. It is my opinion that had the US Army adopted the 6.5 X 55 Swede, it would have been better served than with the 30-06. The recoil is less, but the trajectory is outstanding all the way out to the long range distances the Army wanted. If the Army had to have a 30 caliber, than the 7.5 X 55 Swiss. Which is an outstanding round in its own right and duplicates the 308 Win. My chronograph values of Swiss ball were that a 174 grain bullet traveled 2555 fps in a K31. That is nothing to laugh at. Both the 6.5 and 7.5 have sharp shoulders, which promotes energy delivery to the primer, my 7.5 brass has a thicker rim than a 30-06, which makes it (by happenstance?) better for semi auto weapons. I don't remember the rim thickness of Swedish ball.
I don't know how a 7.5 X 55 feeds through a Swede action, nor really, how any round other than a 6.5 Swede feeds. And to tell you my experience, keeping the action in the original cartridge will always provide the most reliable feed and extraction. Changing cartridges create little, niggling un re liabilities that have to be worked out, if they can.
I don't know how a 7.5 X 55 feeds through a Swede action, nor really, how any round other than a 6.5 Swede feeds. And to tell you my experience, keeping the action in the original cartridge will always provide the most reliable feed and extraction. Changing cartridges create little, niggling un re liabilities that have to be worked out, if they can.