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9/22/2017 12:11:25 AM
Posted: 8/14/2005 4:56:05 PM EDT
So the 1/7 and 1/9 twist rates are really widening up groups out of .22 coverted uppers... what happens when you take an old 1/12 pencil barrel? Much tighter groups?

With this in mind, I came up with the idea of taking a 20'' 1/12 and hacking it down to about 16'' and making a carbine that will keep the groups tighter.


Can I expect 2'' groups at 100 yards?

I would love to throw together a .22 plinker but I dont see the point if I convert a current upper and the groups aren't even worth measuring. I'm no dead-eye but I like to throw down a quarter and see if they fit under it!

Any ideas, guys?


- BG
Link Posted: 8/14/2005 6:57:48 PM EDT
i think the 1/12 bbl. would work much better than the lower/faster twist rates


i thought about it and a old pencil bbl. would make a great dedicated .22



my bull bbl. on my 10/22 is 1/16
Link Posted: 8/15/2005 2:40:08 AM EDT
[Last Edit: 8/15/2005 2:40:28 AM EDT by ray-vin]
What conversion kit do you have? If you have an M-261 then why don't you make a dedicated 1:16 upper and have tack driver accuracy?
Regards, Ray
Link Posted: 8/15/2005 12:28:02 PM EDT

Originally Posted By BUCC_Guy:
Can I expect 2'' groups at 100 yards?



No.
Link Posted: 8/15/2005 12:39:38 PM EDT
I see no point in making a .22 upper if it wont allow me to poke tight groups... if groups are wide I want it to me my fault, not the gun.

I may just bite the bullet and get a dedicated upper (CZ?) in the future.


- BG
Link Posted: 8/16/2005 9:40:57 AM EDT
BG,

FWIW, I ended up going the 22LR barrel route, thanks to the guys here. I have a Ciener and a M261, and once I got over the lighter hammer issue with both, I had good functioning. But, here is where I ran into problems with my 1-9 barrels.

With both kits, I could get 22LR ammo that grouped pretty well. The big broblem for me was that I would get lots of fliers. Groups would have 7 or 8 in a decent hole, but, ALWAYS 2 or 3 that were a long way out. I still get the occasional "poop" round with the value ammo, but they stay pretty well within the group. I shoot mostly CCI Mini-mags now, and all is very well. Nice tight groups, and very very accurate.

Craig
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