Slugging a Mk IV and Barrel Taper
I slugged the barrel of my Mark IV with a 0.50 cal round ball. Using the method of gently rolling the slug while between the caliper jaws, I get 0.463". I also tried slugging with a 0.457" -sized...
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Shoot 'em Joe...Its .470 groove...(chuckle)... when slugging, be sure you use soft lead and slightly larger than your estimated groove diameter, that way, you are sure to get the lead all the way into...
View ArticleRe: Slugging a Mk IV and Barrel Taper
A very distinguished member of this board and near legendary gunsmith (at least on the Martini action) slugged one of my MK II and one of my MK IV and found to his surprise that both were exactly...
View ArticleRe: Slugging a Mk IV and Barrel Taper
Richard, There is no surprise in a Mk II slugging out at 0.463" since that is within .001" of the designed 0.463 to 0.464" groove diameter of the Mk I thru Mk III rifles at the muzzle. Also, quality...
View ArticleRe: Slugging a Mk IV and Barrel Taper
One thing that Coyote brings up that needs to be understood about Henry rifling is that the MH has a tapered bore of odd number grooves (7).A plug gage of .449 diameter should pass the full length of...
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