I shoot bench rested at 25 yards; group size of .5 inch being repeatable

My smallest groups under 800fps were obtained with TrailBoss and 231.
TrailBoss is fun, but the widest use is probably 231.
My smallest groups over 1150fps were with H110 and 4227.

2400 was a stellar performer as well around 1000fps.

Using 158gr up to 180gr cast.

Plated and Jacketed bullets are 2X to 3X the cost. $.08 each vs $.20.
I'm too frugal (cheap) for those and I prefer cast anyway.

Prescut
I'm convinced that Vihtavouri N340 will produce the smallest groups when I get it worked out. Favorite powder.