Home Forums Reloading Big Game Rifles .25-06 1 in 10" Twist Sufficient for 115-120 gr Bullets?

My 1:10 shoots Berger VLDs very well at 500 feet above sea level at 3000fps from my Ruger .25-06.

In .243 I like 1 in 8.5" to 1 in 9" twists, In 264 1-9 or faster so just to make sure I went 1-9 in .25 but haven't put it together yet. A 1 in 9.5 should be just right for the 115 Berger depending on velocity.

I subscribe to the faster twist improving straight line penetration after impact theory, but this is debatable.

I know this a 1 in 11.5" wont stabilize a 115gr. Partition.
Sure stabilizes 100's though.

DS,

I have a 25-06 with a 10" twist Shilen barrel; it shoots quite well the 115-120 grain bullets, but it shoots better with bullets of 100 grain weight. Brand of bullet doesn't seem to make much difference, and I think it has to do with rate of twist. If I had it to do over, it would be done with a 9" twist.

In is my opinion, that even though the 10" twist will stabilize the heavier, longer bullet, it is right on the edge. With the really high quality bullets we have today, I see nothing wrong with a twist being a bit toward the fast end of spectrum; it is certainly better than being just a bit too slow!

M Bell