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Suppressing a "skinny barrel" - 11.5" Pencil (.625 gas port) or 14.5 Mini-14 cut-down

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March 02, 2020, 12:33 PM
James in Denver
Suppressing a "skinny barrel" - 11.5" Pencil (.625 gas port) or 14.5 Mini-14 cut-down
I'm just now starting into NFA land with my first 2 suppressors.

One is a direct thread 7.62 which will be used on my 300BLK set ups.

However, the other is a 556 that has a muzzle device/quick connect.

I thought I read somewhere that skinny barrels increase the risk of a baffle strike because they can become "whipy".

I'm thinking of cutting down a Mini-14 to 14.5 and pin/weld the muzzle device. I'm also thinking of a BCM or DD "lightweight" 11.5 AR barrel and putting the muzzle device on that.

Anyone have real experience with suppressing a skinny barrel?

I have a heavy weight 11.5 1/7 stainless barrel as well, pretty sure no issues with that one.

Any feedback is appreciated.

James in Denver


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"Voldemorte himself created his worst enemy, just as tyrants everywhere do! Have you any idea how much tyrants fear the people they oppress? All of them realize that, one day, amongst their many victims, there is sure to be one who rises against them and strikes back!"
Book 6 - Ch 23
March 02, 2020, 01:03 PM
George from Alaska
No so as the suppressor moves in line with the end of the barrel. At least I haven't experienced that in over 30 years of buying, selling and shooting every quality and/or military suppressor out there.

07/02


P220 European
P220 Scorpion
P220 10mm Legion
MK25
P226 Legion
P226 SAO Legion
P229 Legion
556 rifle, my favorite 556
P320 M17 (not the expensive
one) with Leupold DPP
P227 Tac-ops
machineguns
suppressors
07/02
March 02, 2020, 01:22 PM
PorterN
Thinner profile barrels tend to be more prone to POI shifts in my experience, but not more or less prone to baffle strikes than any other high quality concentric barrel.



____________________________
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March 03, 2020, 02:28 PM
myrottiety
quote:
Originally posted by PorterN:
Thinner profile barrels tend to be more prone to POI shifts in my experience, but not more or less prone to baffle strikes than any other high quality concentric barrel.


Yea... I'm in this camp. Hanging a 1 - 1.5# weight off the end of the barrel. Can change the POI. But should be good to go.




Train how you intend to Fight

Remember - Training is not sparring. Sparring is not fighting. Fighting is not combat.
March 24, 2020, 02:03 PM
RHINOWSO
Yeah, it's more of a 'potential' of POI shift.

I have had minimal POI shift with a 11.5" ELWF BCM upper.
March 25, 2020, 07:36 AM
offgrid
I prefer a slightly heavier barrels when adding weight to the end. I've shot/handled others lightweight barrel SBR's with cans. Prefer the balance or swing of the heavier barrel with a can. YMMV