greetings from across the river in nh...

as for your 20 ga flues, they are delightfully light little grouse and woodcock guns...however, the old wood is often quite fragile...so, shoot 3/4 oz loads...and baby it...

regarding lengthening 2 1/2" chambers...most american made guns have enough barrel wall thicknesses in front of the chambers to safely lengthen to 2 3/4"...consult a gunsmith with lots of experience with american made guns...before doing so...

for reference, my gunsmith for over 20 years, used a general guideline that required .090 or better of barrel wall in front of chambers, before considering removing metal...

and then, some here will argue that it is ok to shoot 2 3/4" shells in old guns with short chambers...and that lengthening chambers serves little positive purpose...

in any event, enjoy this coming season in your wonderful green mountains of vermont...

Last edited by ed good; 09/11/23 05:55 PM.

keep it simple and keep it safe...