Chronograph: War Stories!

In 1998, I (and SWMBO) traveled to my first Major Match, which was the Area 1 match in Reno, Nevada.   I was shooting The Beloved Kimber (.45ACP) in my 200gr SWC load,, and I was entirely confident because it had chronographed consistently in Major Power in my own Chrono Tests, and in the Chrono Tests which my Home Section (Columbia Cascade Section) provided during the Section Match.

So it came as a complete surprise when Doctor John and the Chrono Crew in Reno found that my loads were just a little too slow to prove Major Power!  What's this?  I'm shooting a .45 .. how can it NOT be Major Power?

This was the first Surprise Event in my competitive career, so I wasn't sure how to handle it.  But they shot six rounds, and I was still decimal-points short of the speed I needed in my ammunition to make Major Power.

Chrono Man gave me the option; should I re-weigh the last bullet, or shoot it for speed?

Since my original bullet weight had been measured within one tenth of the declared weight, I  was reluctant to expect that the last bullet would be anonymously heavier.  I asked them to shoot it for speed, and fortunately it was much faster than all the other rounds which I had submitted for testing.  I ended up shooting in Major Power .. but just barely!

The thing is, I was using Hercules Unique powder, which is notoriously coarse-grained.  It did not measure accurately from one round to the next; it was only dumb luck that it had tested 'faster' in the last round.

I finished in the lowest 5% at that match .. in at least one stage, I was the lowest non-zero scoring range.  I wasn't very good, but I was still having fun!

Since then, I have changed to fine-grain powder (Vihta Vourhi 330 or VV 320) for the .45 ACP loads, which weigh much more accurately.  And I quit shooting the .45 ACP in competition, for that reason.

(I use only fine-grain powders in competition, even in Level I matches where the ammunition is unlikely to be choreographed.)

I've said this before, and I won't go to the bother of looking up the links to previous posts, but if you expect to compete in a Major Match, you would be well served by using a fine-grain powder which measures more consistently and accurately in most reloading presses.

BTW, I used the same coarse-grain powder in my next Major Match; the Limited National match at Las Vegas later in 1998.  I overloaded the rounds, and ended up with a Power Factor of 198.  It was a bear to shoot, but I managed to do well enough to jump from C-Limited to B-limited based on my scores at that match.

Knowing the limitations of my ammunition, I was careful to shoot for accuracy, not for speed.  This may serve as an object lesson, as my scores in the National Match were just barely high enough to jump me from C-Class to B-Class in Limited.  That, using a single-stack Kimber (cost: $238) with borrowed 10-round magazines and untested ammunition.