Today I tk my bsa out on the deck for a short session and i was seeing strange groups ....not terrible but not like last week. I was thinking maybe the barrel was dirty but then i noticed the two inch factory muzzlebreak was unscrewed a little and after a couple of twists the gun went back to take driver . That little things looks like it belongs on a powder burner but it seems to serve a purpose on the bsa r10. 
Back with a strange and short bsa r-10 story...
- Thread starter rwsmike
- Start date
Barrel harmonics play a big part in accuracy with the powder burners. I'm sure airguns are similar. For parts that are threaded and may need to be removed later, a dab of gasket sealer often is all you need to keep a part from loosening. Seat bolts on my MX bike always got a bit od Yamabond 4 to keep them in place but not cause problems when maintenance was due.
Upvote 0
I always thought the thread protector looks really cool. The way they made it look like a muzzle break. It's interesting that little piece will make a difference if it's not tighten
Upvote 0
My friend had just the opposite findings with his R-10 We removed his and the rifle shot even better so he made a simple plain screw in replacement cap without any holes and it was also better . We then tried my Hugget and it shot even better! All rifles are different ! and no there was not a clipping issue so it must be harmonics. J.L.
Upvote 0
Just like the others said its from the change in harmonics or being loose it was not completely lined up causing turbulence or barely touching the pellet as it went thru.
The shroud is very easy to remove. If you liked the way it shot with a suppressor on the end of the shroud, you should try removing the shroud and using the suppressor directly attached to the barrel. It will be shorter and quiter than the factory shroud.
The shroud is very easy to remove. If you liked the way it shot with a suppressor on the end of the shroud, you should try removing the shroud and using the suppressor directly attached to the barrel. It will be shorter and quiter than the factory shroud.
Upvote 0
Similar topic. When watching one of the XTX videos he made a comment about the shroud adapter up next to the breech block the shroud screws onto. He said to put a millimeter or two of space between the adaptor and the breech block. He said it was a common cause of accuracy issues with the R10. I did it and it’s easy to do.
Upvote 0