I don't need 3600-4000 fps and the report, I want to keep low. I am sure the 2500-3000fps will be enough for bullet function, especially considering my ranges. I am not really concerned with the bullet breaking apart inside the ground squirrel (the intended target) since at those speeds it will do the job easily. I am more concerned about ricochet if I miss.

My 22LR does the job even at 75yds but they tend to run back into their holes. Most of my shots would easily be done by an 17 HM2 but that ammo is worse to find than 22 LR.

2000-3000 will do the job nicely, and the smaller bore will keep the report down. Neighbors are a couple hundred yards away, and full loads of 223 or 20 or even 17 calibers get pretty loud. That's one reason I don't shoot the WMR as much. The report is pretty loud.