kel bullseyeThe 231 is cleaner burning that Bullseye. Both nite easily and are well behaved for lht loads. 231 is supposed to be a little slower than Bullseye.Kel-Tec CNC Industries, Inc., of Cocoa, Florida, just introduced their latest firearms desn at the SHOT Show 2025 in January, the all-new R50 (meaning Rifle-50 rounds),