Woodhick ,
I was going over some old posts and came across this one
asking about the 4-bore/100 cal. (actually 105 ?? )
I just finished building one this past December , got it done just in time for the regular rifle season here in Pa.
And i mean,just in time , shot it for the first time while
taking a lunch break on the first day of the season. I got lucky with the sight placement,it shot in the middle of a paper plate at 40 yds. with 250 gr. of 2f and a 1750 gr ball. 015" patch . Two hours later i shot my deer with it at about 40-50 yds.
I got the barrel from Ed RAyl , it is 1.052" bore ,and about 1.080" groove . The 250 gr load shoots about 1025 fps . , 300gr about 1125 . 350 gr . about 1215 fps .
Haven't chronographed the 400 or 500 gr load yet .
The gun i built is a half stock ,curley maple ,flintlock English Sporting rifle (flint so i can hunt with it here in the Pa. late season) It has a 30" octagon barrel , tapered from 1 3/4 " at breech to 1 1/2 " at muzzle . Jim Chambers
round face english lock . The gun weighs 16 1/2 lbs.
Shooting it this past Tuesday , with 200 gr load at about
940 fps , recoil not too bad,(of course i have had a 460 Weatherby for about 20 years, that i sometimes use for deer) we got several 4 and 5 shot groups in the 2" range at 50 yds. One group had 4 shots touching in a kind of cloverleaf ,makes and impressive looking hole! ! !
Joe.