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All Springer/NP/PCP Air Gun Discussion General > Machine Shop Talk & AG Parts Machining

Barrel Breech Leade Taper Rate

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rsterne:
I use tapered pin reamers, but you have to cut away the OD behind the chamber diameter you want (I use the skirt diameter).... They are 1/4" per foot of taper, which is 1.2 deg total, or 0.6 deg. per side.... This is optimum for slugs, but you can use a faster taper for pellets, although there is no reason to, IMO.... It is quite a close match between the head and skirt diameters on most pellets....

Bob

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