With the steel one for a pattern, an aluminum version can be done on a water jet. I did a reverse of this to add weight to the bottom of my Hart/Sinclair rest.
Good shootin' :) -Al
Jeff, it was Field And Cave Outfitters that used to make those, along with other very well designed and made items. Unfortunately, they've ceased production of the shooting gear.
Try a 'Wanted' add on Accurate Shooter. One of the members there bought their remaining stock of items...
Gary was a smart, smart man and a heck of a gunsmith. He was also a true gentleman and a total class act.
The World is a better place for Gary having been here.
Wasn't a biggie to do using a 3/8" diameter, 82 degree carbide counter sink tool. Depth was .020...just enough to give a bit more angle on the neck approach.
Good shootin' -Al
Michael, the options can sure get a little overwhelming, can't they?
Give each company a call and ask about options. You'll find Jim Borden especially helpful and willing to answer questions and give guidance.
Good shootin' :) -Al
The fit of the bearing capsule into the front plate is critical to them operating smoothly. Best results come from fitting it on an individual basis. Butch's tensioners are a big improvement. There's more tweaking that can be done to them, too.