You'll need a couple of accessories. From what I watched the DCRA long range cartridge shooters use, here's a list:
- any rest will work, the triangular Delta Rest gives you nine levels and is no-tech compared to a mechanical rest (link for illustration not for you to follow and buy -
https://www.midwayusa.com/product/1015142220 );
- get a couple of cleaning rods long enough for one sweep of the bore, from breech to muzzle (leave one dirty for brush cleaning, and one clean for oil patches and preservation oiling)
- an 18" length of vinyl tubing is necessary to puff warm humid breath into the hot bore between shots on a long string. The extra moisture will keep gross powder fouling chunks from solidifying
- experiment with bullet lube to find the one you dislike the least
- what's the best cleaning solution? yes.
- cast with linotype
- gas checks and cardboard over-wads will help keep pressures more consistent
- become a fanatic for doing things consistently, like putting the back sight vertical again between shots, like wearing a recoil absorbing shoulder pad, like keeping your cases in groups by number of shots, like inspecting for cracked mouths and discarding 10%, like ear muffs AND ear plugs, like cleaning your safety glasses between relays, etc etc