Re: RP or WIN brass?
Depends on the caliber. Until recently, R/P for example is the only commercially available 260 brass. Sure, before you could reform Lapua 243 or WW 7=08, but then again why, if you are getting good groups?
Hide members: don't blast me, I know, the Remmy 260 brass was all over the place, but for me, after sorting and BR prep, it worked fine. .38 on the average with a GAP Bartlein set up with Dillon ammo. I am happy.
In the end, IMHO, a large part of the brass issue is up to you. If you have more confidence shooting .2 groups with Lapua and not witt anything else, so be it.
It went down the same road in .308 and tried literally everything, including those rare Remy SR primed BR 308 brass and BR loading techniques. Found BR prepped LC 79 (not match) gave me consistent .38 groups at 100 on a Dillon 550. I spoke with Derrick Martin about this awhile back and he wrote an article about this in Precision Shooting. I'll lookk for the link.
Since I unfortunately have to work , I try to shoot more and reload less. I feel sacriligeous, but the need to eat every day overides the need to do otherwise. Its a bitch having to work everyday, who thought of the five day a week work schedule?
Reloading is fun and the BR stuff I'll explore when I retire soon.
YMMV. GL. 5 out of 7 days to work? WTF? Where is the balance??? I need to perfect my offhand and reloads!