tight caller of a PFR opener kinda depends on how thinking the tight player is. my range (if i'm playing against myself) is like 87s+, 22-JJ, AQs, maybe AQo but i should probably stop doing that. there are people who run like 20/15 who have less legitmate ranges here though. 54s+, AQ+ (including AK), 22-QQ (sometimes even KK+), i've seen random suited Ax's before, KQs and so forth.

second scenario, i've run this one through poker stove quite a few times over the course of my pokerin', and it's like any soooted cards (literally 25s is like always in his range), Ax, K5+, Q7+, J8+, 22+ (weighted a little bit away from JJ+ depending on how big our 0% 3b sample is). this is affected a little bit by his CCPF number because sometimes 50/10's can be limp/fold fish who change their ranges when facing raises, but limp like 100% of their hands.