Blast Media..??

[eww1350]

What is the correct blast media/grit to get the same finish that Remington puts on their Stainless Steel 40X actions and barrels..need to install a muzzle brake and match the finish...

Thanks in advance...
Eddie in Texas

[ultramagmed]

I just bought a blast cabinet, I am using 60/120 and it is slightly rougher than a factory remington finish. I think a 100/170 or a straight 220 grit would be closer, but I have nothing to back my opinion up. I am not sure what the exact match is.

Hope this helps,
Med.

[brian roberts]

a fine bead, but it doesn't necessarily have to be the finest. While you have the barrel off, just go ahead and blast the barrel and the brake, and they'll match up. Make sure you use a BEAD and not a GRIT; beads are round(mostly) grit is irregular(like coal). With the bead, keep your pressure down to around 60-65psi. there is no benefit blasting at a higher pressure. Some people blast higher to get a "powder" finish, all it does is destroy the beads. Regulate the size of the bead to get the finish you want. Also, if you use a thin piece of wood, say, 1/4" thick and about 10X6", you can use this to rest the work on while you are blasting, it really cuts down on the fatigue factor, and allows you to rotate the work as you go. When you're finished, you can flush out the barrel and brake using CRC Brak-Leen, green can only. Hope this helps you out. ;)