SIGforum
Are 10/22 and 77/22 barrels interchangeable?
August 23, 2026, 07:14 PM
vthokyAre 10/22 and 77/22 barrels interchangeable?
Based on pictures, it looks like they have the same dovetail cuts underneath, but I don’t know if the dimensions are the same.
The Shaw barrel I put on my 10/22 is great, and I’d like to duplicate it on a 77/22. I haven’t yet made time to take both apart, but I figured I’d take a minute and ask the question here before I go tearing things apart.
Thanks, all.
Politicians seem to have forgotten that they work for us, not the other way around.
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God bless America. August 23, 2026, 07:17 PM
Mars_AttacksNo. I tried years ago.
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Eeewwww, don't touch it!
Here, poke at it with this stick.
August 23, 2026, 07:44 PM
sigfreundI have a Lilja barrel on my 77/22 that I am very happy with, but they are obviously pricey.
https://riflebarrels.com/shop/...s/ruger7722/7722-lr/According to a search, a few other manufacturers also offer aftermarket 77/22 barrels, but I did not try to confirm any.
Although chassis for 10/22 rifles are extremely common, I have long looked in vain for one to fit the 77/22.
This was an answer to an AI Gemini question about barrels:
“10/22 Compatibility Note: While 10/22 and early V-block 77/22 barrels share similar tenon dimensions, they are not directly interchangeable without modification due to differences in extractor slot placement and locking wedge geometry.”
I can tell at sight a Chassepot rifle from a javelin. August 23, 2026, 07:57 PM
vthokyThank you, sigfreund. And yes, that Lilja sure doe s have a price tag!

Green Mountain’s 901501T has my attention right now.
As chassis goes, my 77/22 has the old “boat paddle” synthetic setup and the thin barrel. I’m wondering now how likely (read:
if) the .920 barrel will fit in the boat paddle setup. I’m thinking it won’t.

I do see now that Boyd’s offers an AT-One stock for 77/22. That’s mighty tempting.
Politicians seem to have forgotten that they work for us, not the other way around.
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God bless America. August 23, 2026, 09:45 PM
sigfreundquote:
Originally posted by vthoky:
I do see now that Boyd’s offers an AT-One stock for 77/22.
I don’t know if I ever looked at the At-One before, but it is tempting. My 77/22 with the Lilja barrel is the “All Weather” (stainless) version with laminated stock and I figured out a way to add an adjustable cheek riser, so it is currently similar to the Boyds. It serves well enough and as there’s little chance of anyone’s ever offering a chassis for a discontinued model, I’ll just love it the way it is.

I can tell at sight a Chassepot rifle from a javelin. August 24, 2026, 06:12 AM
vthokyThe AT-One is nice on my CZ. I'm sure I haven't yet taken full advantage of its... um...
advantages. quote:
Originally posted by sigfreund:
I’ll just love it the way it is.
In the end, that may just be the path for my old 77/22 as well.

Politicians seem to have forgotten that they work for us, not the other way around.
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God bless America.