Both mine are done every 150 -200 Alex, but both are well run in!
as Tony points out, new barrels seem to get very dirty quickly which may spoil accuracy / tight groups.
Try cleaning the barrel, put 10 - 20 pellets through it to get it leaded up again and then shoot it at card (45 yards) until you see accuaracy drop off, while counting pellets in say batches of 25
Ii tend to get more "Fliers" when mine need a clean.
Some however say they do not clean very often at all.
Pellet Lube should prolong gaps between cleaning spells and may improve accuracy.
Thats next on my test card.
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REV26 Ostler Ev2 & x45 comp awaiting a Gary Cane Stock!
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