RE: 220swift or 223wssm w/1-8"twst an 60-80grners
When I first set up the 22-6MM, I envisioned trying it a bit as a "regular" cartridge and if all went well, setting it back a thread and opening it up to the 22-6MM Ackley Improved. As it turned out, the combination of high velocity and the fast twist turned out to be too much for most bullets to reach "full throttle" without a percentage of them coming apart in the barrel. Most of these long VLD type .224 bullets are designed for match shooting with the .223 Remington, so I wasn't surprised. Starting a velocities of around 3700, things began to go south. So I never went to the Ackley Improvedversion.
So, in most instances, I was not able to load the 22-6MM to its full potential. For that reason, I am thinking that when this barrel is shot out I will build another one in the 22-250 Ackley Improved - which is one of the best big cased .22 CF calibers out there. Particularly in terms of case life and barrel life. Hoping to get 3600 out of a 75 A-Max. We'll see.
PS: In my 22-250 AI with a Hart 1:14 barrel, I have some brass that has been reloaded 21 times. It is "loaded down" to about 3850 fps with a 55 grain bullet. Never have had to trim a case. How's that for economy?
__________________
A man has got to know his limitations . . . . .
Hoyt Vectrix XL
Mathews Outback
Easton Axis FMJ
100 gr. G5 Montec/Rage 2 blade
|