Barrel "Conditioning".

[verminhunter]

Yes I vote this as one of the most useful threads for all air gunners.
Well done UK NEIL! even though you come from the black country.

[GERALD BUTLER]

Yes I vote this as one of the most useful threads for all air gunners.
Well done UK NEIL! if though you come from the black country.

Thank's Neil/Costas for the tip (excuse the pun) using the fag filters are the sizes suitable for .22 as I know you were refering to your elephant gun Costas Gerald.

[big_phil555]

Another thank you from me for UK Neil

I cleaned my barrel as the grouping went out the window - I used the pull throughs , then fired 25 pellets thru as a warm up

Then at 55 yards it gae me ragged one hole groups - well happy - thanks Neil

[10-ring]

I don't think there is any set in concrete rules as every barrel is different. My TX200 .177 doesn't show any problem with changing brands apart from the P.O.A. in most cases. A Pro Sport I once owned took at least a dozen shots to settle down after a pellet change. I've owned FWB .22LR match rifles that were similar.

The other day I changed from Accupell to JSB Express, no change apart from the P.O.A. The Express grouped as well as ever from the first shot. Same in reverse and same with AA Fields and Edgun 8.4gr. After cleaning the barrel, the rifle groups straight away. Mind you, it's a particularly accurate TX200, although that may have nothing to do with it.