Ar15/.22 conversion accuracy

[Fast Frank]

I've been toying with the idea of buying a conversion to shoot .22LR in my AR15.

But I have a question.

The rate of twist in my AR is 1:9.

The rate of twist in my Marlin .22s is 1:19.

The marlins are fine shooters, and can make nice tight little groups, so I'm thinking the slow twist is good for .22LR

How are those same bullets going to act when fired through a 1:9 twist barrel?

If all the rate of twist hype I read concerning AR15s is true, then the huge difference in those barrels should make the AR pretty lousy for accuracy with .22lr.

What about it guys? How does your AR shoot with .22LR?

 

[mp510]

The rifle used to fire the following group:
RRA Lower
Bushmaster A4 upper, 1:9 20" HBAR; Chrome lined (post ban config)
A2 buttstock, pistol grip
Colt Conversion Kit

Fired at 50 feet with new-style Winchester XPERTS.

Now you see it:

Now you don't:

 

[railroader]

50 feet is just 17 yards. What will it do at 50 yards? Mark