VikingAirguner liked the 13 grains with the 500mm and 600mm barrels. The heavier the ammo, the more work and energy is required. Longer barrel also helps 40fps for every 100mm.
WD40 has come out with a gel version. I like to spray a little into my tins and it will creep over all surfaces and leave a very light film that’s almost unnoticeable. They say it works on chains and is Oring safe. This will likely stop any lead from accumulating in the barrel and provide more...
Very interesting, I cant wait to get a .177 700mm heavy liner. The 16gr knockouts are really fun to shoot, and with an extra 100mm over the stock liner it should be speedy.
Yeah, 700mm 980fps .25 36gr Nielsen. 150bar 120bar stock internals on slug port Heavy liner. I think every 100mm of barrel adds 40fps. If you start pushing any caliber size over 120bar things start to get louder.