Custom .22 hot-rod need opinions

[BountyHunter]

22-6mm

22-6mm ackley improved questions - The Firearms Forum.Com

BH

[J E Custom]

Originally Posted by liltank

I have read with the WSSM they are having problems with bullets exploding because of the high twist rate. J.E. must have found this out as well. I think it would be cool to have something shoot the big ones fast. I just wonder if you could open up to a 1:10 with the heavier bullets because of the speed being so high to compensate for lack of twist. Anybody ever try this theory?

Tank

Yes.
That is the reason I chose the 1 in 15 twist (for lighter bullets @ 4400+ ft/sec).

I use to have a 22/250 with a 1 in 14 twist and it did very well with 52 to 55 gr bullets
@ 3800+ ft/sec.

My main goal was to see just how fast I could push a 40gr Ballistic tip and not lose
accuracy.

So far I have reached almost 4400 ft/sec with no pressure signs and accuracy has been
getting better even though I have not tried to improve accuracy at this point.

Brass is holding up well in the 223 WSSM with 4 firings in them. (I took 40 rounds out of
the smallest batch of weight sorted cases) and intend to use them up during testing.

All of the holes in the target are clean so the little 40gr ballistic tips are holding up.

J E CUSTOM

[acloco]

22/6mm AI easily pushes the 75 gr AMax to 3950. I run mine at 3700 to make the barrel last as long as possible.

[436]

I think I'd go with .22-250 Ackley Improved with 1-9 twist 26" barrel. Keep it simple.
436

[johnmyers]

Rich at Sierra Bullets technical dept. shoots a 22x47. He is a good guy and would be glad to help you. I shoot 80gr smk's at 3230fps with good results.