I'm not sure I fully understand your question, but if you are trying to throw a charge of 5.0 grains of Red Dot, you will need a powder slide with a hole that is 0.421" in diameter. That same hole size would throw a charge of 6.65 grains of Bullseye. I have a number of extra 00 powder slides, but nothing that big. You might want to consider a 1/2" powder slide with interchangeable bushings.
http://www.starreloaders.com/forum/index.php?topic=1618.0 PS Welcome to the forum, Lots of great people and good information here.
I have a Universal Machine that I am setting up for .45 ACP. I have had no real issues until I got to the powder slide and throwing 5.0 gr of Red Dot Powder. I have a - 27A Powder Slide No. OO -- 5/16" Thick for the Universal Reloader only. Max. capacity 7.0 gr. B.E. or 8 gr. Unique or 11 gr. #2400. Is there a way to adjust the amount of powder delivered to the shell case?
Thanks,
Bill