Steve - Sounds to me like a BKH40... Go see Contender... He'll be able to tell you exactly what model & type you have, and I'm bettin' he'll help you get it fixed! My guess is that you can get that busted screw out of there, get a new grub screw and you'll be back in business. If it's a...
Ruger1441 - Thanks! The consecutive to your rifle (42528) was part of a 6 gun set of #3s on Gunbroker a couple years back. (All 6 standard calibers) I darn near snagged 'em, but had other financial irons in the fire at the time. My notes indicate the bid was at 3900 with a 4200 Buy It Now...
There's no trick to bead blasting provided anyone has the right media! I should think any good machine shop could do it. Heck, you could rent one if you have an air compressor!
FYI - Check out the link below. It'll give you an idea of the various media available. I expect you'll want...
Have a look here. These cases I can vouch for. I used these for very expensive test equipment for 30 years.. It'd be very easy to buy a generic case and remove the foam blocks to customize it for your rifle. These cases are VERY stout!
http://www.pelican-gun-cases.com/rifle-cases.htm