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Reloading quality

Seating Consistency Analyzer

Paste COAL or CBTO measurements to see spread, standard deviation, and which rounds need a quick touch-up.

COAL measures case head to bullet tip. CBTO measures case head to a consistent bullet-ogive contact point using a comparator.

For CBTO, enter comparator readings. For COAL, enter full cartridge length.

The nominal COAL or CBTO measurement you intended for this batch.
in

Your desired seating length for this batch.

Maximum allowed difference above or below target before a cartridge is flagged for inspection.
± in

Anything outside this window will be flagged.

Enter measurements from cartridges in the same batch and use the same measuring method for every value.

Enter at least 3 measurements for a useful trend.