From my short research of them, they sound like they're definitely worth a try! And this is my first wildcat but I've had fun so far. The rifle is a savage axis 22-250 that's been pillar and glass bedded into a Boyd's thumb hole. It also has a Timney trigger. The barrel is a blank from Green Mountain. It's a 12 twist and I had Kevin Weaver fit the barrel and contour to the Savage Predator contour. He chambered it for a no turn, standard 20-250. Brass is very simple to make. My bullet of choice was the machined brass 28gr "Controlled Chaos" from lehigh defense. It's a low BC bullet but the first trip to the range showed very good accuracy up to a pretty low charge of Benchmark. I only worked up to a mild load due to not having concrete load data. This weekend I'm gonna try and get back out and work towards a more stout load of powder and watch for pressure and hopefully continued accuracy. I've loved this rifle so far and can't wait to park a coyote on the ground with it. What kind of rifle are you thinking of doing?