We have developed two tools for our 50 BMG customers (shown above). Measure overall length accurately with our new .50 caliber bullet comparator. The Sinclair Bump Gauge for the .50 BMG allows you to accurately measure cases at the shoulder so you can adjust your dies for proper sizing. Both the bullet comparator and bump gauge attach directly to dial or digital calipers. We recommend the use of 8" calipers with both tools.
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