Thread: What happens when your case has lots of room left?

Originally Posted by shooternz

If you have to use a drop tube with the .223 and .308 you are using too slow a powder, AR2206H is a good powder for both cartridges,
the 303 6.5x55 and 7.5x55 are some of the earliest smokeless cartridges, The early smokeless powder was less powerful and bulkier
than modern powder as long as you don't go over max loads or under start loads you will be fine,
AR2206H works well in the .303 use 174 - 180 grain bullets they fit the throat better than lighter bullets

Yes, I go over the max load a bit for my 308 with 2206H for sure. but worked up to it though. Lapua thick brass didn't help.