I purchased a sidekick from Jerryko from this site. It came with the 25 acp breech plug and brass. I got it out yesterday to start sighting it in and ran into a technical problem so I had to give up. This by the way had nothing to do with the gun or equipment I got with it. Anyway I returned to the range today. I got it on paper with the bushnell banner 3x9x40 that I mounted on it. I was shooting 100 grains of loose 777 ffg. I was also shooting a 240 grain lead round nose .429 bullet I mold myself in a harvestor green crush rib sabot and using the 25 acp breech plug as it came with both. I was using cci small rifle primers. At 50 yards 6 shots were all within an inch at 1 inch high. I moved to 100 yards and the group opened up to about 2 inches or slightly larger and pretty much the same place 1 inch high. I am very pleased with the entire set up. In 2 weeks regular deer season closes and we then have a week of muzzleloading. During that week it is either sex hunting. With the number of does I have been seeing, I expect it to get bloody then.