KK facing 5B

You could've 4-bet less, but it really shouldn't matter, since even if you only raised to £45-50, you should still call the shove if you would call his shove after reraising to £60

Not much else you can do, but not many players do this w/o AA/KK unless you have been raising a lot or seem a bit of a maniac. At best he has QQ/AK, but I doubt it. Sucks being 200bb deep, though.

Yeah I think my 4b was too big. Just not sure how often people do this with JJ QQ or AK for a 5B

So out of curiosity how do we play this if we have 300bb

4bet smaller and maybe flat the 5bet or even fold. We have position. If he has AA, we'll find out on the flop or might be able to get a better read on his reaction to the flop. I know we aren't supposed to flat/fold KK, but against certain players we are almost always beat.

Grunch:

You may want to start including some table reads in your OP's.

As for the hand - BB's 3B of 4.5x is a tad large, even when he's OOP. If our 4BB open is smaller than usual for the game, or if we've seen that this V just uses bigger sizes, that may be a factor here, but otherwise, with no other information available, I'd tend to think that larger 3B sizes indicate stronger hands.

In theory our 4B's are supposed to be just over 2x when we're IP, like 2.2x-2.3x, in that neighborhood. I think we can get away with 2.5x at low stakes, which would put us around 45 when he makes it 18.

Is it a mistake to 4B to 60? Meh, probably not, unless you'd ever 4B-fold KK at low stakes. If you would 4B-fold, then I would probably use a smaller 4B size.

It's not necessarily a mistake to 4B-fold KK at low stakes. But if we're going to do it, we should use a smaller 4B size, and we really ought to be sure that our opponent is only 5B'ing AA, never QQ or AK.

Your specific sizing of 60 effectively commits V to jamming the rest in if he wants to continue. It's never correct for him to call off 30% of his starting stack, and then fold post-flop. I can't fathom why he's 5B'ing less than all-in, unless he's got AA, or he's just an idiot (and it's possible for both to be true).

What that means is that when we 4B to 60, we're putting V in the position of having to jam if he wants to continue with QQ/AK, so we're effectively committing ourselves to calling the 5B-jam when we choose this size (again, unless we're 4B-folding to a 5B-jam, and in that scenario, we shouldn't use this size, and instead go smaller).

This is part of why I'd like to have some table reads. If V is a nit, we should 4B smaller and fold to the jam. If V is a bit more aggro, this 4B size is fine, and we should be thrilled to play for stacks.

ETA - in my last session, a reg opened, I 3B holding QQ, and he 4B me to roughly 40% of his starting stack. I have no idea why he'd do that, when it's so obvious he's calling the rest off if I 5B-jam (which I did, and he did). Had he just 4B all-in, I might have folded. The run-out was clean, and he mucked without showing, but I assume he either had AK or JJ.

Likewise, I suppose it's possible your V is 5B'ing 3/4 of his starting stack with something that isn't AA, but it would be unusual, and generally poor play.

Any observations you have on V. Priority on observations of how they play, but in the absence of those, some demographic description or any potential tells you may observe.