Update on the Spike's .308 DynaComp: Fired it Wednesday at the local range. It's mounted on a 16" barreled .308 bolt gun - the Ruger Gunsite Scout. Now, this thing has a little kick to it. ;D Previously, with the stock muzzle device on there, while bench-type shooting (zeroing the red dot, checking the irons), it would kick off-target. I was shooting from a front shooting block, not touching the front of the rifle, and bracing my non-firing hand under the bottom back of the stock. With the muzzle rise, it would jump up, and completely off target - the front of the gun would physically come off the shooting block. With the DynaComp on there, I definitely noticed a difference in the recoil characteristics. It would pretty much keep the red dot close to the target sight picture - still some movement, but not nearly as much as before. Linear recoil felt somewhat better, somewhat less than before, but it still kicks - it's a 16" .308 bolt, so it's going to. Hell of a stock pad on the back of the stock, though - that's good. Overall, it just stays on target much better when you follow through after the shot. It's worth the money I spent on it (little over $80 from DSG Arms), and I'm glad I changed out the stock muzzle device and went with this one.