I shoot Nosler ballistic tip 40 grain bullets. My gun is a T/C Venture Predator with the faster 1:10 twist. For some reason Thompson Center uses a 1:10 twist for their 204 ruger guns. I don't see any bullets still sold over 40 grains.

Max load for H4895 is 29 grains with a 32 grain bullet. I just tried 21 grains (72% of max)
with 32 grain V-Max with great results. No idea what the velocity is but the load is much lighter than my 28.5 grain load of CFE223 with 40 grain Hornadys.