I'd have to say .400 Nitro that from some of the pictures and comments I've seen and heard, he ( SDH ) does some pretty fine rifle work as well. Anyway I have emailed Hollands ref your semi beavertail comments and am waiting to see what Patrick comes back with. I tested a .375 at their rifle range with a semi beaver and much preferred it to the .470 I also tried with a splinter. By the way neither guns had articulated triggers and I fired 4 rounds from the .470 and about 15 from the .375. The only time I did get stung was once when I left my thumb on the safety on the .375. rgds, Mike Bailey
