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Old April 11, 2012, 04:55 PM   #22
Unclenick
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Join Date: March 4, 2005
Location: Ohio
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Hodgdon thinks you'd be at around 3400 fps with those bullets, so that probably gives you an idea of the true limit. You might aim at 3000 fps instead and see if they hold together and stay accurate.

Varget is liked for heavier match bullets in the .223 Rem. You may be able to get the 77 grain SMK to stabilize in your 9" twist bore OK, too. It's heavier than is usually fired with that twist, but it's stubby and the calculators think it may be OK. I don't know anyone using Varget for light bullets. Being a stick powder it is at least less prone to the secondary pressure issue. But I'd get IMR 4198 or maybe Reloader 10X and just settle for loading that Dogtown bullet down in the 9" twist bore.
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