Wonder if anyone else has had similar experiences and have any advice or suggestions??

Sparrow suppressor, S&W MP-22 with Gemtech adaptor.

First few outings with the combination were very impressive. Gun shoots to point of aim and very tight groups with or without suppressor at 15 yards. No shift in point of aim / point of impact with the suppressor. I was very pleased.

Same results with several different types of ammo - CCI standard, GEGO HV and Winchester 42 grain subsonic.

Cleaned gun and suppressor and fast forward to today.

Gun still shoots POA without suppressor but now shoots 6 -8 inches left with suppressor attached at 15 yards.

Tried different ammo - same results.

Tried taking suppressor apart and reassemble - same results

Tried taking gun apart, retightend barrel, barrel shroud and adaptor - same results.

No evidence on suppressor baffle of bullet strikes.

I'm puzzled and disappointed after it working so perfectly the first few times out.

Note picture attached. It doesn't do this anymore!

Any advice?

Attached Images

Sparrow.jpg (60.1 KB, 56 views)

I've never had a Sparrow apart, but I see they are made in one piece, so nothing could have been re-assembled backwards or out of order. Could there be any leakage at an O ring?

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NRA R.S.O. & Life Member