Home Forums Hunting & Shooting Handguns Cast bullets in autoloaders

Consider a slower twist barrel. Factory barrels are 1:10", customs are 1:16". There likely won't be much difference in accuracy with jacketed bullets, but most Hi-Powers will benefit from the slower twist for lead.

Work done by Schuemann Barrels determined the optimum twist for a 1911 and lead bullets is 1:24" (factory 1:16").