The Firing Line Forums - View Single Post - CMMG .22LR uppers, questions in regards to some parts and ammo.

Scoro · November 8, 2012, 04:17 AM

@ Fishbed77
Good report, thanks.
I agree and my experience with the CMMG SS Kit is the same. Very reliable, easy to clean, good precision.
I have both barrels and decided for the 20".
I don´t use any special ammo. Standard bulk rounds from CCI work fine. For a better ignition I tuned the firing pin. I use a a softer spring, grinded down the firing pin head at the inside and drilled a little bit at the collar.
But, my "dream" semi auto .22 dedicated upper (was) is a "Super Match".
Why? Because life is too short to spend hours and hours for 60 prone in an English Match. Now I´m ready in less than 20 minutes. - And with a good score.
I took a barrel from an older small bore bolt rifle, a Bentz finishing reamer, a barrel extension adapter and some parts for the sights.
Voilà!

November 8, 2012, 04:17 AM	#12
Scoro Junior Member Join Date: November 7, 2012 Posts: 2	@ Fishbed77 Good report, thanks. I agree and my experience with the CMMG SS Kit is the same. Very reliable, easy to clean, good precision. I have both barrels and decided for the 20". I don´t use any special ammo. Standard bulk rounds from CCI work fine. For a better ignition I tuned the firing pin. I use a a softer spring, grinded down the firing pin head at the inside and drilled a little bit at the collar. But, my "dream" semi auto .22 dedicated upper (was) is a "Super Match". Why? Because life is too short to spend hours and hours for 60 prone in an English Match. Now I´m ready in less than 20 minutes. - And with a good score. I took a barrel from an older small bore bolt rifle, a Bentz finishing reamer, a barrel extension adapter and some parts for the sights. Voilà!