If its loading density that bothers you try Vectan AS.
Many GB GR shooters use it in 44.
6.0 gn will two thirds fill a case and its green.
No chance of double charges or not seeing it in the case.
AS is about the same burn rate as red dot etc.
I have used a lot of it in 44 with a home cast 200gn bullet.
Very pleasant to shoot and clean.