I like to think of bullets in weight classes like boxers based on how heavy-for-caliber they are.
For example, in .357 I would think of 158-180 grains as heavyweight, > 180 super heavyweight, 140-158 as welterweight, ~125s lightweight, and <120 as flyweight.
In .429 I think of 240-260 grains as heavyweight, >260 as super heavyweight, 210-240 as welterweight, ~200s as lightweight, and <190 to be flyweights.
There are many great, well proven designs for 44 in the heavyweight category, the 429421 being foremost in my mind, however there does not seem to be any similar great in the welterweight category besides the 429215, which is a gas check design.
I have read of folks turning off the gas check shank on their molds, but most regret this decision, as the small grease groove has been blamed for leading. There's no way to grow back that steel. The clones of the 429215 can be had without gas checks, but they have the small groove. Basically, I'd like a 429215 with a bigger groove, but it seems like a custom affair, and I don't like that because you can be pretty much in the dark as to load data.
Does anybody know of a well proven design in that weight class without a gas check that has load data in abundance? The one that seems most compelling to me is the Lee 429-214-SWC, but those grooves seems even more wimpy to me than those of the 429215. Plus that mold is not available for Lee in six-hole variety. NOE has a 224 grain SWC that seems good to me too, but none available. I simply do not have the vast decades-long experience that some of you guys have, and I wonder if I am missing something.
I am not necessarily married to a SWC, though I do prefer them generally in revolvers.