Sinclair bump gages

[gunaddict]

I just got my new sinclair bump gages and i was wondering if anyone has used these? Instructions say to measure 10 to 20 fired cases. Are there alot of variances in that amount of fired cases? Thanks Todd

 

[boomtube]

"Are there alot of variances in that amount of fired cases? "

Yes. And in resized ones too. Well, not a "lot" but some. Differences in brass alloy/hardness insures a bit of variation even in the same batch.

 

[gunaddict]

Well thanks for your reply. I guess I won't know until I try the bump guages.Hopfully I did not waste my money. Thanks