.300 Win Mag twist rate and barrel length?

[JAYgs8163]

You need to pick a range of bullet weight before you buy a barrel with specific twist rate. 9 twist will give you a good range of bullet weights to shoot. That being said though I have a 300PRC in 10 twist that shoots a 212 ELDX in the same hole.

 

[Subzero]

You'll be able to stabilize 95% of available bullets. You should be good to go.

 

[ntsqd]

I've long felt that chambering a traditional Magnum (.264, 7 REM, .300WM, etc.) in anything shorter than a 26" barrel is just wasting powder. I'd go with a short action mag chamber in a barrel shorter than 26", but I do understand the issues with hiking a long barrel around.

 

[Subzero]

Also, keep in mind that muzzle blast will be louder in the 24in, and on top of that magnified by the brake.

 

[Paladin300]

Is there really going to be that big of a difference between the 24 and 26" barrels in speed to notice a difference if I'm running a faster burning powder and not shooting out past 1000? I asked about doing a 25" and the prefit barrels are either 24 or 26"

For every inch you shorten the barrel you will loose 25-50 fps. The 300 WM as are most big 30 magnums was made to perform best out of a 26" or longer barrel. Considering you want to shoot the heavies I would go 1/8 twist which would allow you to shoot most everything from the big 250 grain pills down to the 200s. I am running a 25" barrel on mine with a APA LB gen2 break; total barrel length is 27". It will shoot 215 Bergers at 2805 into a 1/2 inch group nearly every time from a 1/11 twist Sako barrel. I get key holes with anything 230 and above. If you aren't going above a 220 grain pill, a 1/10 twist will be fine. If you go with a 24" barrel you should still see velocities with the 220s around 2700 - 2750 FPS.

 

[HuntingBronco]

Can't take a can to "Can"ada to hunt moose...

Another reason to add to my list.