Have considered, then re-considered keeping a shot shell first up, when afield. There's been a marked uptick in rattlers and there's always the usual small camp pests. Yet I hate to have a first shot up load thats only gonna annoy things bigger'n 10 lbs.. Have more bears and coyotes actually denning on camp acreage, so... A better varmint load was born. I'll skip the experimenting and such and go to the final loading. I used CCI 300 primers, to light 6 grs of Unique. I cut disks from a plastic milk jug to place on top of the powder to keep it from mixing into the 65 grs of 9 shot that goes in next. The 135gr Rn from Matt's Bullets holds it all nicely in place. Results on cardboard at 15 feet are encouraging. There is some wiggle room. I may try to squeeze in 70 grs of 9 shot, or top the load witha 165 SWc that Matt has. From recoil, load is mild and can stand some tweeking. First loads were fired thru a SBH, later tests thru a .44spec bulldog. YMMV. Stay safe. steve b