LugerForum Discussion Forums - View Single Post - Gauging a dial caliper for reloading (9mm)

JONABI · 12-23-2020, 04:43 PM

I've lost my first reply( took too long, I was logged out).
Now I've zeroed my caliper: good. Measured a 9mm cartridge first reading mm=29,15 converted in inches= 1.1476 rounded to 1.148 compared to vernier combined with dial measurment= 1.145. Difference of at least .003 inche. That's why I want to calibrate my caliper because I won't be sure of any measurment until I can gauge it. I understand that I will face many variables while reloading. But at least I should know for sure what's the real reading before I start reloading to expect some kind of accuracy.

12-23-2020, 04:43 PM	#6
JONABI User Join Date: Nov 2020 Location: Québec, Canada Posts: 36 Thanks: 57 Thanked 15 Times in 7 Posts	Comparing measures in 2 units-caliper I've lost my first reply( took too long, I was logged out). Now I've zeroed my caliper: good. Measured a 9mm cartridge first reading mm=29,15 converted in inches= 1.1476 rounded to 1.148 compared to vernier combined with dial measurment= 1.145. Difference of at least .003 inche. That's why I want to calibrate my caliper because I won't be sure of any measurment until I can gauge it. I understand that I will face many variables while reloading. But at least I should know for sure what's the real reading before I start reloading to expect some kind of accuracy. Attached Thumbnails Last edited by JONABI; 12-23-2020 at 04:48 PM. Reason: Pictures didn't load