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your thoughts on an ar short stroking
- Thread starter foxhunter
- Start date
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UncleDano
Well-Known Member
Right!
Last edited:
if the carrier is dragging on the gas tube it'll act like undergassing, so making sure the tube to key alignment is correct. not only that, but making sure the hole in the block is @ 100% over the port and most likely not against the shoulder of the journal (usually has a gap).
foxhunter
Well-Known Member
faxon answer:
Thank you for taking the time to contact us! In our testing, we used a standard mil-spec carbine spring and 3.0oz carbine buffer. We were also using a full mass bolt carrier group.
We have noted that there is a fairly stark difference between the three loadings that Hornady offers for 22 ARC. The 62gr ELD-VT loading can be a bit undergassed in a gun that is otherwise perfect with the 75gr or 88gr loadings.
You may also want to check both the gas block and the gas key on the bolt carrier for any signs of a leak in the system. This could be robbing some energy and slowing the cyclic rate of the rifle.
Thank you for taking the time to contact us! In our testing, we used a standard mil-spec carbine spring and 3.0oz carbine buffer. We were also using a full mass bolt carrier group.
We have noted that there is a fairly stark difference between the three loadings that Hornady offers for 22 ARC. The 62gr ELD-VT loading can be a bit undergassed in a gun that is otherwise perfect with the 75gr or 88gr loadings.
You may also want to check both the gas block and the gas key on the bolt carrier for any signs of a leak in the system. This could be robbing some energy and slowing the cyclic rate of the rifle.
Sounds political
Review post #10…
That is exactly what Faxon is telling you.
Get it cycling with your lighter weights and put an adjustable block to choke down for heavier and/or suppressor.
Should be able to work that out easily.
I'm sure it'll be a blast when you get her humming along!
Best of luck!
UncleDano
Well-Known Member
I don't recall you mentioning whether you were using a 55gr or an 88gr. bullet loading.
UncleDano
Well-Known Member
Any update from the OP on what has been tried so far?
UncleDano
Well-Known Member
Hey foxhunter, any luck on resolving the problem as yet?
SSG Graybush
Well-Known Member
He had the wrong spring and or buffer in it and is probably to embarrassed to report back. my 2c.
UncleDano
Well-Known Member
it's very odd to have a rifle length system on a 16" barrel! 16" barrel minus 12.7" (rifle length gas ) leaves 3.3" to muzzle. i could see a mid or intermediate at most, but rifle length is way out there! 16" barrels usually have carbine lengths and some mid-lengths and doesn't jump to mid and interm until 18-20" in any ar15 cartridges. ar10 cartridges (some might be caliber differences) is another story! ask me how i know!
EmanP
Member
It's obviously under gassed but the best thing you can do is give it to somebody knows how to build ARs and have them double check everything. It could just be the gas hole is undersized which is not uncommon.
