TrueBlue711
New member
The question is more specifically about my SCAR-17. I'm getting my CDS dial on my scope custom made for the ammo I want to have it zeroed in to. I'm using Hornady A-Max 168 grain, which has a muzzle velocity of 2700 fps out of a 24" barrel (per the box). The SCAR-17 has a 16" barrel. Best option would be to use a chronograph myself, but I don't have access to one. Has anybody shot that ammo out of a 16" barrel and chronographed it? I'm being told you lose about 25 fps per inch lost, which would be new muzzle velocity 2500 fps. I just want to know if that's pretty accurate from people's experience. If so, I'll go ahead and order my new dial using 2500 fps. Thanks!