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13-Sep-2019 jCross

September 13, 2019

190913_0002P.jpg



For years I have been wanting to invest in a chronograph. That is a device that measures bullet velocity. They have been around for years. Over the years the designs have evolved and improved. Finally, I saw one that had all the stuff I want. The key innovation was a Bluetooth link to my smartphone. That gives me two things. First, a way to look at data without having to go out to the chronograph and read a screen. Second, the app from the company collects data and analyzes it automatically. Simple.

So today I got to take my brand new ProChrono DLX out to the range for the first time. I worked brilliantly. My intention is to clock all the guns and loads I use. That will come in handy for calculating trajectories. I did learn a couple things. First, the .22LR ammunition I buy because it is cheap is not very consistent in velocity. Seeing as how I only really shoot them in a pistol at 12 yards, that really is of no consequence. Second, factory ammunition seems to be more consistent than my handloads. That is to be expected, I think. Third, this is a hell of a lot of fun. Wish my friend John Cooper could join me. I am looking forward to many more sessions out at the range with the chronograph.


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jCross18-Sep-2019 22:44
I am certainly going to try the
process you describe. I am curious what
it will produce relative to my
usual reloading procedure.
John Cooper18-Sep-2019 21:56
John,
My competition hand loads were supremely accurate.
But they took a lot of time to make.
First I trimmed the cases to length. with plus or minus 0 thou at the same room temperature.
Then I weighed the cases so that the ones I used were identical in weight, no tolerance.
I used hard lube coated heads, weighed them to zero tolerance, they really were identical.
I put a large magnifying glass in front of the markers on the scales and weighed the powder charges to zero tolerance. My scales measured to one tenth of a grain.
Loaded on a single stage press slowly and carefully.
This ammo was only used in competitions.
Never had a flyer, always very good scores.