Originally Posted by barm
I have an XP-100 single shot and I am trying to figure out which cartridges would be adequate for shooting out to 400 yards with a pistol length barrel. Would a 260 or 7mm-08 have enough left at that distance? Currently it is chambered in a 7mm BR, what do you consider the maximum distance with this cartridge for whitetail deer?
The 7-08 will do it to 400, but since it looks like you are willing to rebarrel I would consider cartridges based off of the 284 Win case (6-284, 25-284, 6.5-284, and the 284 Win itself) to get you to that goal easily and have some room leftover.
The 284 Win cartridge & it family in 16-17" barrels you will basically get the same performance you would with cartridges chambered in rifle length barrels based off of the 308 cartridge ( 243 win, 25 Souper, 260 Rem, etc).
One of Holland's or Carlock's brakes will turn the recoil into basically nothing. I use rifle scopes more and more with these kind of brakes.