I have a 32" barrel on order that will taper down to 1.00" at the muzzle (from 1.20 at the chamber). But it looks like I have the option to terminate the taper at some point BEHIND the muzzle, going straight cylinder (NO taper) to the muzzle from there. I'm thinking somewhere between 1, and 2 to 3 inches max? The length that best dampenss out the harmonics Is what to use, I presume. Too long taper setback, it that's what to call it, will result in some stiffness lose though. But I don't have even the slightest idea. Highest possible accuracy is the goal. Any ideas on what "setback" length might yield the highest accuracy potential? Is there anyeasymethod to "calculate" the optimum value for this paticualar dimension? (It is 0 right now, but I don't think that is optimum.) Cal is 7RUM w/9 twist, & muzzle will have 11 degree crown, WITHOUT a brake. Due to the backlog, I should still have plenty of time in which to make changes to the order.