On a stock 2240 (7.75 inch barrel) I just can't fit my slip on shusher and still load the C02.
Going to 10" seems the obvious solution, but I'm worried this will push over the 6ftlb limit
I remember a thread showing FPS increases with different barrel lengths but can't find it again.
Will 10" barrel be OK or is it too close for comfort ?
I don't have a chrony, but I guess that's the only way to check. Will gunshops test and certify ftlbs, and is that costly ?