I have absolute tons of brass for most standard, Wby & lots of wildcats, with many match/BR/LR hunting guns.
All are put into cans, mostly big cashew cans from Costco, PB, mayo etc. All are sorted by Manufacturer & weight into individual cans. All LC military, are year sorted then years are sorted by wt. Militalry & hunting are sorted to .5 gr. BR etc are exact weight sorted.
Things like levers arn't sorted all that much. Do sort by manu & try to get within 2gr.
Don't sort pistol brass except by brand & then not for blazing ammo.
When I buy brass for a gun, I will buy 500 or 1k, sometimes more as in LC 5.56/7.62 so I can get the the same yr groups & lot nos.
Any gun, no matter what it is will have 500 minimum (except maybe levers - just don't know)
Weight brass, bullets, powder will have a great effect on accuracy in any gun worth having.