Clean the bore well after you get it, Joshua. You need a one piece rod with one of the pokey-type jags fro square stick-on patches - NEVER use a bore snake - EVER. Patches go breech to muzzle, then fall off when you retract the rod.

Butches Bore shine or similar is good.

Best to remove the barreled action from the stock and check the bedding in around the recoil lug area and tang - for cracks and compression.

Some of us like to slug the bore to see what the groove diameter is, some don't care. If you want to use cast bullets, you need to know the groove diameter. If only shooting jacketed, the groove diameter is what it is - you use .264" bullets. My last 2 6.5's had .266" groove to groove diameters and they both shot 1 1/2" at 100 meters with the battle sights (milspec).