I almost bought some Herco at the gun show a couple weeks back but remembered reading about it not metering very well like Unique, so I passed it up. There's lots of great powders out there and I guess the best for this particular bullet would be 2400 or maybe even AA#7 or #9. I just don't care for H110 in 357 or 44 Magnum...too quirky. I'm still thinking QUICKLoad.