A R7 will get it done on fairly large critters such as this rock chuck, but if you are going to shoot a lot of 5-8# vermin then the R9 in .22 cal is a much better tool for the job.

[Linked Image from i.imgur.com]

Last edited by centershot; 05/18/22.
A true sportsman counts his achievements in proportion to the effort involved and fairness of the sport. - S. Pope