Did some more testing yesterday. Removed the aftermarket barrel band and the poi moved up 2" and group size increased a little, next removed the shroud all together poi moved up 4-3/4" and to the left 2". Checked barrel screws, all 3 were snug. Seems like the shroud is putting a lot of pressure on the barrel. Not sure how to tell which is out of alignment, any thoughts.
Spin, it does have the original rear mounting bushing. This one is threaded and the shroud screws on to it. I haven't seen any aftermarket metal ones that are threaded. Thanks for your insight. May require gun with no plastic for long distance pesting.
Thanks for the information, do you know what he used to deaden the barrel. I will check with AE Swede on the metal bushing.
Study the wind more...it does not take much at 100 yards...even in a 90 degree 5 mph wind...
Tim, My 25 Avenger shoots like yours at 100yds also. My goal is to put them all into 1moa at that distance but like yours two out of five go off course. I’ve done a lot of experimenting but so far my best efforts haven’t found the problem. The shroud makes the poi sensitive to change and these rifles may be sensitive to bbl harmonics. I’m thinking of adding a second internal shroud centering/Oring between the factory one and the muzzle and testing it in different locations. Different suppressors I use don’t seem to make much of a difference and the factory bbl band seems adequate. I haven’t had the bbl off yet for lapping but when I do I will pay special attention to the chamber area. I plan to experiment with a short (1/16”) freebore throat and remove any rifling up to that point. This darn rifle already shoots better than it should and I think it has more to give.Mine is a gen1 with the shroud held in place by one screw into a plastic centering block at the breech and Im thinking of replacing it with the aftermarket aluminum one offered on eBay. A FFP scope is helpful at 100yds and further. Tom
Jerry,I appreciate your input about centering and locking these shrouds in place and that is the direction I am proceeding in. You seem to have more info than I do so let me ask your opinion of what I should do. I planned to order an aluminum shroud mount from AE Swede that mounts the shroud to the breech with one screw but then ad two more securing screws for stability. You mention the possibility of buying a ‘threaded’ aluminum shroud mount and replacing the shroud with a double ended threaded after market shroud. I haven't found this offered and maybe you can steer me in the right direction.Thanks,Tom