First off I am more of a hunter than a muzzleloader as I enjoy hunting with my NEF Tracker II and my 30-30 Topper than I do muzzleloading. My purchase was only a way to extend my hunting season into December here in Wisconsin. With that in mind I purchased my Sidekick 24" Stainless w 7/8" breechplug on a closeout sale from a dealer that ordered 12 and had three left that didn't move. I have yet to make a kill with it as I have only group hunted with it one day. We had a family member with a tag leftover from gun season for the late muzzleloader season (the only one we currently have in Wis.) and another hunter filled the tag the first day. Other than that the Sidekick has been a safe queen.
I started out with just using the sights and the Sidekick seemed highly inaccurate. Upon installing a 1x Sightron scope I now find the Sidekick fairly accurate shot to shot. I have the scope set to be "on" with a clean barrel, as that is the way I use it. I have the .25 ACP primer breechplug that I used from the get go.
To me this rifle is a pain to clean, though I go all out to do so. I shoot two maybe three shots with T7 loose powder and then I remove the breech plug and clean it up . On the breech plug I use Tetra grease by applying a thin covering at the start of the threads before turning in the plug. I clean with Precision rifles black powder cleaner and then use Ballistol as a lube/rust preventer. A 12 ga. bore brush is used to clean the threads that the hold the breech plug in, and I use Qtips to clean out the ACP primer holder in the breechplug. I use Precision Bullets 200 grain dead center bullets, the .40 caliber with the large sabot they are supplied with. My load is 90 grains T7 FFG with the DC bullet and the brass is primed with a Remington 7 1/2 primer. The recoil is almost nil, and easily controllable from the bench.
I am considering making a breech plug or modifying the PR plug to use a 209 primer with Blackhorn 209. Lots of irons in the fire here, but if I succeed I'll post the results. Anyway, Good Luck and Good Hunting.