Ask yourself how much brass prep do you want to do? This will answer the question 6BR or Dasher. The BR only gives up about 150 fps to the Dasher. If you are going to turn necks, I’d say Dasher. If a no-turn, I’d say BR. The Dasher’s extra HP works well for 1K but a BR is still in the hunt at that range. 8” twist either way.