Sako 85 Black Bear .308 Kahles KX 2-7 4A Shortened to 18" plus suppressor Lapua cases, 150gr Lapua Megas, Fed LR Match, 45gr H4895 Capable of .5 MOA, or less, all day long Great in the tight stuff although a little heavy for mountainous terrain.
That's an interesting set up you have there. Is that can threaded on or clamped somehow? It appears that you would have to run threads over the fluting unless it is some sort of reflex arrangement.
The can is of the over barrel type made of alloy. It's 8" long of which 4" is rear of the muzzle. The threading is right near the muzzle itself. After removing 2" off the 20" barrel there was enough room to thread the muzzle end for the can before the fluting began. The barrel length including the can is 22" in length so still manageable in heavy cover.
"The 257 Roberts, some people like to call it the “.257 Bob.” I think these people should be hung in trees where crows can peck at them." - David Petzal