View Single Post
 
Old 08-06-2007, 12:36 PM
Robert W. Simms Robert W. Simms is offline
Member
 
Join Date: Jan 2003
Location: Mount Juliet, Tennessee
Posts: 8
Likes: 0
Liked 0 Times in 0 Posts
Default

I just bought an old .455 HE2 from HandEjector (as good and professional internet transaction as I've ever encountered, I might add. Thanks, Lee).

It's a bit tricky miking the chamber because it's not a nice right-angle transition from chamber to throat. It's more like a funnel or angled shoulder on a bottleneck cartridge. As near as I can tell, mine mikes out at .945" from the rear of the cylinder to where the chamber ends.

Out of curiosity I checked the same reading on my unconverted .455 Webley Mk VI and got the same reading within a thousandth or so.

I guess if you really enjoy all that lathe turning on the cases then have at it, but those Hornady Mk II cases are very well made, readily available, and burn cleaner with medium powders than the longer case due to the better loading density.

Also, I'd turn the rim thickness down to .030". If you leave them thicker then you may encounter significant cylinder drag after firing a box or so of ammo as carbon starts building up.

-Bob
Reply With Quote