Originally Posted by fireblade
Lead is self lubricating, steel is not, so when the clean barrel starts to bed in with lead the speed can rise a little.
some barrels take only a few shots to settle, others can take more even upto or over 50 shots.
It is all barrel and pellet dependent.
Dave, i have an FWB P70FT that was shooting well, decided to clean the barrel, it`s still not back to it`s original accuracy and iv`e run three tins + through it . Tried Bis mags and JSBs the JSBs were worse, i now wish i had not cleaned it,and left well alone.