I enjoy everything about my Rem 700 in 300 win mag except for the 26" barrel. I Would love to shorten it down to 22" or 24". How much accuracy would I loose I am shooting a .5 MOA and hate to mess with a good shooting rifle. Any thoughts would be greatly appreciated.
+1 I wouldn't mess with it if it were me but if you must do it, go find a reputable smith and make sure he cuts the crown correctly. You're taking a chance by doing it but you can minimize the chance of accuracy loss by having it done by a good smith. On a side note, I wouldn't go below 24". Personal feeling is that if you do, you end up with a belligerant 06.
In the last three 300 wins we have built, we have found 27~28" to be a great length and work well with H-1000 powders burn rate. I have also seen the 26" factory barrel shoot well but with a noticable difference in velocity. For me 26 is the shortest barrel I would want for a LR rifle.
I agree with the others on 26" being the shortest for the .300WinMag (for me). You're averaging 70+ grains of powder, anything shorter and a flame-thrower comes to mind.
I think I read some of the new rounds (.300RCM) were designed to provide magnum velocities/energy with shorter tubes. Might want to look in to these. Good luck. JohnnyK.
If you need a lighter, shorter barreled rifle it looks like a great reason to get a NEW RIFLE!
That's what I always do.
In the last year I have come up with 9 great reasons, of course my wife doesn't really understand them !LOL
Good news is ,she lets me keep those poor stray rifles I take in and provide a loving home for.