I'm not a match shooter or good shot but I have made an effort to load consistent "target" ammo.
By effort I mean to say I bought a lot of bulk brass, bullets, primers & 8lb jugs of powder, all same brand & lot # etc, then...
For initial 1st loading, I full length sized, trimmed & champer all cases to same oal, squared primer pockets to same depth, champer flash hole inside & out, then I tumbled/polished the cases.
Then each case & bullets were weighed & segregated & marked into same weight lots.
Then I loaded 20rnd test loads, each charge weighed on a beam scale.
When got the most accurate load, I loaded remaining brass & bullets.
For second & additional loadings I necked sized & trimmed to oal.
After a while of doing this kind of loading, I figured it took to much funds & effort to buy components to load "target" ammo since I most likely wasn't going to ever shoot nothing but paper plates a 1000 yards away.
I could settle for hunting ammo that will do 1 1/2” or less five shot groups at a 100 yards and be happy.
Besides I read carlos hathcock's first model 70 06' sniper rifle in vietnam had a peppered bore & was a 2moa rifle and he still had confirmed hits a long ways away.