7mm08 hole size

[proneshooternz]

Hi all

For a muzzle-forward monocore suppressor what is the optimum hole size for the 7mm08?

thanks
Tracy

[Dr.K]

I would start at .060" above projectile diameter.

With that generic answer given. I tailor my thru bore based on the concentricity of my cans, but it's likely not as easy to check on a monocore. I've made one very very tight bore on a rim fire can, but it was absolutely perfect on the runout. There was only 15 thou clearance, and I only run it on one gun that also has perfect threading. Even with all that concentricity, some bad ammo would likely mean kissed baffles or endcap.

A proper visual check will let you know if you are gtg. Be sure and show us your final product!

[proneshooternz]

Thanks Dr. I will convert that .060 to metric first though

and yes will post progress and final pics

Tracy

[proneshooternz]

Here is the first stages. I am doing all the lathe work first and making/fitting the end cap which will hold the thing together with five 4mm countersunk capscrews then it goes in the mill to ventilate the core

https://picasaweb.google.com/lh/photo/e ... directlink