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.

[Bob the nailer]

I had a .224 hot rod idea last winter then after reading thread after thread on line this is what I found;
I wanted to neck down my 6.5x55 Ackley Improved to a .224 neck, listed in P.O. Ackleys book I found a cartridge by DR. E.L. Arch this lead me to find the Vais cartridges! George Vais took a swede 6.5x55 case blew it out to an improved shape then necked it down to .224". I will need to pull the article to post velocities and bullet weights however I do remember superior tack driving groups were shown, Precision Shooting April 1998 is one printing. I think aprox 3800fps with 80 grain pills.

A little off topic but I opted to build a 6mm-284 to launch 66grainers at +3900fps. just need to finish ream the chamber then off to the bench

[436]

George Vais is a very good friend of mine an has built many tactical and long range rifles for me; his {6.5x55mm} wildcats are very good long range performers'..., known for there accuracy an high velocity. I had George do the work on my .22-250 AI only because at the time he was not turning out any of the .22 Vais with dies. As it stands now, George is about to head back to Greece this month do to health, which is very unfortunate, we’re loosing a great gunsmith.
436