Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
BCM
Durkin Tactical Franklin Armory
User Panel

Posted: 12/17/2010 6:25:35 AM EDT
Will shorts work in the CMMG conversion unit?  Will they cycle or have to manually extract?
Link Posted: 12/17/2010 6:34:55 AM EDT
[#1]
Not sure on that one. It would be iffy. The spring is stiff on the CMMG but will cycle sub sonics.
Dave
Link Posted: 12/17/2010 6:43:38 AM EDT
[#2]
If you can get 'em in the chamber, they'll shoot; but if they feed, I'll eat my hat.
If they cycle, I'll eat your hat.
WTF do you want to shoot Shorts (asked by a guy with a dedicated .22 Short 10/22)?
If it's noise, CB Longs MAY feed ( CCI, Win, Rem).
I've manually cycled Colibri's.
If you shoot many Shorts, you'll gum up the chamber, though no damage will result, except from the OOB discharge when you drop the bolt on a LR round without cleaning the chamber.
There are Long cased loads that will duplicate any Short load you can possibly find.
Link Posted: 12/17/2010 7:02:27 AM EDT
[#3]
Interesting...my next question was going to be about subs.

And yes, noise is the concern
Link Posted: 12/17/2010 7:17:24 AM EDT
[#4]
Quoted:
Interesting...my next question was going to be about subs.

And yes, noise is the concern


Time for a suppressor. I'm working on that myself.
Suppressor formum is great place to learn
Link Posted: 12/17/2010 8:22:13 AM EDT
[#5]
Subs with a can through the CMMG are scary quiet.
Link Posted: 12/17/2010 8:23:12 AM EDT
[#6]
The related (non-suppressed) problem is barrel length.
Nobody wants a 20" barrel on their AR because it's not tacticool, but there's a significant difference in noise between a 16" and 20"(or longer) barrel, even with match, sub, or sub-sub ammo.
Lots of Shorts are HV or transitional, unless designated SV or SS.
Speed=pressure=noise.
"CB" designated LR cased ammo is significantly quieter than match or other "subsonic" ammo, but only minor tuning will be needed to cycle match, sub, standard. CBs require LOTS more effort/time/money.
Regular Cloibris will often lodge in a rifle bore, especially as it gets dirtier ( primer only rounds are filthy).
Super Colibri's work OK, IN MY EXPERIENCE (YMMV). Manually cycled, too. Often extract poorly. I would be interested in trying an Evo.
Close Join Our Mail List to Stay Up To Date! Win a FREE Membership!

Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!

You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.


By signing up you agree to our User Agreement. *Must have a registered ARFCOM account to win.
Top Top