Finally got my 460XVR in the mail this friday. And it's niiiice!
I had only seen the X-Frame in pictures before, and was stunned over the size of the gun.
I have a 686 and had a 629 but they're dwarfed by the new one. And my 640 looks like a toygun besides
But, after some cuddling and testing I'm liking the 460 more fore every time I see it.

But, there's always a but, I can not participate in any competition with a compensator according to the rules.


A friend of mine work as a CNC machinist and can make a non-ported compensator to me but I'm in doubt how we shall design it internally.
On the original there are "chambers" for every port, but when we shall mill the new one it would be much easier to make one hole in the same dimension all through in the same dimension as in the front-end (12,1millimeters).

Any one has any tips before we start?

Exactly what type of competition bans compensators? Or is this some range rule about ported contraptions?

If the rule is about ported contraptions, you could create an expansion chamber inside your new creation, just leave the wall thickness at least the same as the ported comp. BTW, you're going to have to use some stout material due to the gas pressures involved.

This type of design won't damp muzzle rise like a ported comp will, but should still provide some reduction in thrust to the rear.

I know of competitions that rule on comps, but I can't see using the 460 for any of those. You might get a hold of the PC and see if they can sell you a unfinished comp that would be easier to fit to your gun.

IIRC, there was a thread here about 2 years ago where someone did just what you are trying to do.

I don't remember the poster's name, but a search might turn the thread up for you.

It's already drawed and being machined one of these days. So any changes are too late.
I decided to make the inside a 14mm cylindrical hole.

It's made from a solid piece of AISI 316 Stainless steel and the walls will be appr. 7mm thick.
Hopefully that will cope with the pressure.




I really don't know how to translate it! The norwegian word is "Feltskyting". Directly translated it would be Fieldshooting, but I don't think that's right either.

There's even separatecompetition for rifles called "Jaktfeltskyting". Jakt means Hunt and again the untranslatable word "Feltskyting"


Anyways, it works like this:
Shortly said its a competition were the competitors are split into groups of 5-12 and walks a route in the terrain following a "Range Master" and lines up at different shooting ranges.
The number of shooting ranges can vary from 5 up to 15 depending on the size of the competition.
Targets(colors,shape), distance to target(5mtrs to 80mtrs) and elevation vary from range to range.

This is very simplified, but in the class "Magnum2" I use my 460, and the rules says "No form of compensator allowed."


To explain the classes I list them under here:

-Finfelt: .22 Long Rifle (often Walther GSP's)
-Grovfelt: 7.62 mm – 9,65 mm(.0,30” - .0,38”) (often Walther GSP's)
-Militærfelt: 9 mm - 11.56 mm (.0,355” - .0,455”)(Semi auto pistols.)
-Revolverfelt: 9 mm – 11,56 mm (.0,355”- .0,455”)
-Spesialpistol: 5,6 mm to 11,56 mm(.22LR - .0,455”)(Small semi-autos like Walther PPK and so forth)
-Spesialrevolver cal.: .5,6 mm to 11,56 mm (.22LR - .0,455”)(Small revolvers like Mod 640 and so forth)
-Magnum 1: .357, to. kal. .40.
-Magnum 2: .41 to .505


I know the names are in norwegian, but I couldn't find a suiting translation for them.

Do you have a similar form of competition in the US?

The only shooting here I know of that is even remotely similar would be sporting clays (if wrong, someone will correct me). Your's sounds infinitely more fascinating.