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Rate of twist in .22LR?

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17 July 2008, 06:51
carlos111
Rate of twist in .22LR?
I like the 60 grain SSS .22LR bullet for quiet and for down range energy, but the long bullet keyholes in my guns (Ruger, Marlin, Savage). I note that the S&W pistols have (or at least had) a 1:10 twist, fast for a .22LR.

What rate of twist is fast enough to stabilize a 60 grain .22?

Has anyone found a rifle or pistol that will stabilize the SSS?
17 July 2008, 07:00
seafire2
Most 22 LR have a one in 16 twist... a 50 grain bullet is too big and too slow for most to stabilize.. most won't stabilize anything over 40 grains...

even barrels I have see that have been spun off of a rimfire and rechambered and put on a centerfire.. still don't have enough omph to stabilize any heavier bullet than 40 grains..


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17 July 2008, 07:55
GLZ
Gulfcoast Ammunition in Groves Texas was selling 1 in 9 barrels for 10-22 and 77-22 for the SSS ammo. Can't find the link, Ph #409/962-5822.


Les
17 July 2008, 08:10
carlos111
Thanks for the lead. I've never owned a 10-22 but it may be time I did.
17 July 2008, 08:15
6.5BR
My former 10/22 Butler Creek bbl had a 14" twist, now its been re-worked for my 77/22, but sorry, never tried heavies....DOES wad up the WW powerpoints in VERY small groups at 50 yds.
17 July 2008, 20:35
LWD
The barrels that have been made for that load have 1:9" twists.

E. Arthur Brown

Volquartsen

But 1:10" might do it.

LWD