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Old June 10th, 2018, 10:08 PM #1
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10/22 Point of Impact Change Suppressor

I have a Spectre that I bought primarily for use with a pistol. I did have my bull barrel threaded by a popular IP. The barrel was an aftermarket that I bought ages ago and I don't remember the brand, but the accuracy pre/post threading is perfectly acceptable.

Finally took the 10/22 to the range and nothing hit the paper. Bottom line, with the suppressor and CCI mini mags I am hitting at least 4 feet low. No sign of a baffle strike.

Do I need a crush washer, or am I experiencing barrel sag?
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Old June 10th, 2018, 10:34 PM #2
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10/22 Point of Impact Change Suppressor

Definitely not a crush washer. Possibly a peel washer or shims if it's bottoming out.

4 feet or inches????
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Old June 10th, 2018, 11:05 PM #3
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Quote:
Originally Posted by F-Stop View Post
Definitely not a crush washer. Possibly a peel washer or shims if it's bottoming out.

4 feet or inches????
FEET could have been more than 4, no baffle strike though.
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Old June 11th, 2018, 10:27 AM #4
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Does removing the suppressor "fix" the PoI? I would be surprised if it did. There is no theoretical physics framework for how a suppressor could cause a 4ft PoI drop without a baffle strike at typical rimfire distances.

If removing does not fix your PoI issue (which is what I suspect):
1. Check the barrel's V-block to make sure it's in the receiver correctly. A downwards-canted barrel could easily produce the effect you're seeing.
2. Check your optic's mount, if you're using one, to make sure it's not loose.
3. Check your optic, and maybe try shooting with irons. In theory, your optic might have also failed, but this seems less likely.

I personally lean towards (1) being the culprit, but let us know.
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Old June 11th, 2018, 10:36 AM #5
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I had this issue with my Spectre II. The can was really dirty. After I cleaned it shots went back to normal. I saw no baffle strikes but I could not hit a 2' round log at 30ft, all my shots were going straight into the ground way low.

Try cleaning it first, mine had about 500 rds through it before the issue occurred. I also noticed I get better groups without the can on and using a brake instead.
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Old June 12th, 2018, 10:58 PM #6
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Quote:
Originally Posted by erwos View Post
Does removing the suppressor "fix" the PoI? I would be surprised if it did. There is no theoretical physics framework for how a suppressor could cause a 4ft PoI drop without a baffle strike at typical rimfire distances.

If removing does not fix your PoI issue (which is what I suspect):
1. Check the barrel's V-block to make sure it's in the receiver correctly. A downwards-canted barrel could easily produce the effect you're seeing.
<snip (scope problems)
I personally lean towards (1) being the culprit, but let us know.
Removing the suppressor does fix the problem and it was reproducible, meaning I could shoot roughly a 1.5" group at 50yds without the suppressor and see dirt fly from somewhere down low with the suppressor installed. Take it off and hit the bullseye again

I would think that would make a scope function/mounting problem less likely. I have a chance to shoot ground hogs this week, so I don't want to monkey with the V-block. I could not detect any movement in the barrel.

I can't find the thread, but I ran across this device before I posted
http://www.gunsmithertools.com/gunsm...022-elevation/
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Old June 13th, 2018, 05:59 AM #7
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Yes, if removing the suppressor restores PoI, your suppressor _or your barrel's threading_ is the problem. Might want to inquire with your gunsmith how they did the threading, and whether they did it on a proper lathe or whatever.
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Old June 13th, 2018, 06:59 AM #8
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Did you try cleaning your suppressor?
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Old June 14th, 2018, 07:49 PM #9
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Quote:
Originally Posted by Bountied View Post
Did you try cleaning your suppressor?
Haven't tried that.
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Old June 18th, 2018, 04:39 PM #10
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Have you tried a different ammo?
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