It' good that you got this rifle 'out of the closet'
, they are very accurate for a semi. One thing I'd suggest is to use SV instead of Minimags. It will fire the MMs but the SV will be more accurate. When you have the gun torn down you should clean all 'old lube' off since it may be 'dried out'. I use PTFE grease Very light-thin coat. I also polished ALL parts that are friction points, like the Hammer/Sear interface, and the 'pivot pins' of those parts. And not to disparage this Forum but I've found tons of info on Rimfirecentral, which has separate forums for different makes of rifles. On there, Arrowdodger has some Stickies detailing maintenance that bear reading as well as a few YT vids. Lots of info available there. I've done almost all of ADs mods and now have a fine rifle with a 2# trigger (see Floppy Disc Mod by AD and I Cut One Coil off the Hammer spring ).
Hope you enjoy your 'NEW' rifle.
Ed
Hope you enjoy your 'NEW' rifle.
Ed