Quote:
Originally Posted by Daimler1989
But still there is a certain amount of unburnt powder, esp. if I use powders with small grain like AA #2 or AA#5 or the VV powders from 320 to 340.
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I've never used AA #2 or VV320 but on the burn chart they show to be about like W231/HP38 so I don't understand why you're having unburnt powder problems, even with loose throats. How bad is it?
You're correct, a larger diameter bullet would be held up in the throats & give a better burn but, again, that shouldn't be a problem with fast powders, more so with slow powders.
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