It depends on what kind of varmint, I suppose. As a kid, we used the old factory accelerators on coyotes with much success, and slightly less success on prairie dogs out to 300 yards. The last group I remember shooting with them was a shade under an inch at 100 yards.

But they weren't exactly cheap on a high school kid's after-school wages. Nevertheless, we'd carry a couple of them in a pocket during deer season to deal with an odd coyote here or there, not to mention the opportunity to fill a turkey tag without a 150-grain softpoint vaporizing it.

I haven't worked any loads up yet, but I don't have any expectations other than some day at least replicating the performance of the old factory loads.

Just something different to experiment with.