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Trimming cases

During the process of reloading, with the RL550B, is the brass checked to measure for trimming the case? 

Thanks.

Straightwall handgun brass does not need to be trimmed. Bottleneck cases do. Size a few, then check the length after resizing. If too long, then the cases should be sized/trimmed. This is a preparatory step for prior to actually loading the brass.

 For trimming small quantities of brass, a hand trimmer is sufficient. For larger quantites, I recommend the Dillon RT1200B electric case trimmer, so you can size and trim cases at the same time. Stock# 22080.

The cases should be sized before you trim, Right?

A quandry with progressives.

http://www.dillonprecision.com/#/content/p/9/pid/23636/catid/8/Dillon__039_s_Rapid_Trim_1200B_Case_Trimmer

 

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