Mark VI crapped out at the chronograph
688 fps with 5.4 Unique and a 270 grain .454" swc bullet in Hornady .455 Mark II case. Weapon had been fired maybe 5000 rounds in past two decades, half Mark II and half .45 acp. Disassembly shows...
View ArticleRe: Mark VI crapped out at the chronograph
That's pretty unusual. Normally the latch screw bends in the middle.
View ArticleRe: Mark VI crapped out at the chronograph
Did you mean to post a second photo, rather than the same one twice?Also, when you state that it has been fired with .45ACP, do you mean actual .45ACP commercial/milspec loads, or just loads done in...
View ArticleRe: Mark VI crapped out at the chronograph
Never ever use flat based bullets in Mkll cases.l can recommend the 4 cavity hollow based mold from Mihec.There must be some space for the powder in the case and that`s the problem if you use flat...
View ArticleRe: Mark VI crapped out at the chronograph
The second photo was due to computer ineptitude, and the .45 acp loads were standard 230 grain loads fired through an old Mark V cylinder not distended or visibly the worse for the experience. Flat...
View ArticleRe: Mark VI crapped out at the chronograph
Would you mind if I copied your photo, and added it as another example in our "CAUTION RE .455 REVOLVERS ALTERED TO SHOOT .45 ACP" sticky thread?
View ArticleRe: Mark VI crapped out at the chronograph
I do not attribute the latch failure to having fired .45 cartridges in the thing, or to overzealous handloading, but simply to old latch steel having been tired out, akin to Longfellow's Hundred Year...
View ArticleRe: Mark VI crapped out at the chronograph
Spedini wrote:By the way,where can i I buy a barrelcatch and screw for my Webley MkVl caliber .455 ? You can find the barrel catch at Apex Gun Parts: https://www.apexgunparts.com/index.php/cPath/28_59
View ArticleRe: Mark VI crapped out at the chronograph
Old steel can fatigue and let go especially if it is just carbon steel with no nickel or chrome-moly added to alloy it for stress relief.
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