I am with you SaltLick
I had one made by jim baker, jim as started making moderators range of calibres and fittings,
I went to see him to test fired one and i must say the Sound reduction on my rifle(22-250) and (243)was ace , i had a T8 on my rifle but this new one offers a lot better sound reduction.
It is made of stainless steel and is a sealed unit consisting of a series of welded baffles forward of the muzzle, with a large rear expansion chamber that sits over the barrel its powder coating on the out side , the powder coating can be done in any colours, jim said i could have a pink one!!!!