I’ve wanted to do this for a long time, as many people have been talking about dot tracking in open guns and how to tune a flat shooting gun. I thought I’d try to take high-speed video of the dot in my open gun while shooting various loads of .38 Super Comp that i’ve pre-loaded. To see how the dot jumps and settles back into view. The dream pattern, is for the dot to jump straight up without leaving the lens, and settling back down in the middle. As you can see from the video, that’s definitely not what I see. My dot goes up to 12 o’clock, drives all the way down to 6 o’clock, then back to 12 and settling in the middle.
I tested the following loads :
- 115gr Montana Gold CMJ, 11.0gr N105
- 115gr Montana Gold CMJ, 11.2gr N105
- 115gr Montana Gold CMJ, 11.3gr N105
- 115gr Montana Gold CMJ, 11.5gr N105
- 124gr Montana Gold CMJ, 10.0gr N105
I don’t see any noticeable difference in the dot movement between all the loads except feeling a "softer" recoil in the 124gr CMJ loads.
Caveat: I had to shoot in a slightly weird stance because I had to position the scope in front of my Casio Exlim FH100 camera to align it properly. That definitely affected my recoil management capabilities.
I’ve also tried shooting at a man-sized target at 200yards and was amazed at how accurate this gun was. That’s in the bonus section at the end of the video.
Tested three different grips while rapidly shooting 6 rounds off my Open gun. Weak hand grip (barely holding on to the gun), 70/30 (70 left strength, 30 right), and 100/100 (hard crushing grip both hands).
Look at the results yourself in slow-mo. I wished I had a target to show where the rounds hit, but I’m pretty sure both 70/30 and 100/100 were A zone hits and the weak hand probably only 1 would have hit the paper 🙂
Shot this today at the Renton Fish & Game Club organized by the NorthWest Practical Pistol Association.
Shot pretty decently, except for one stage where I missed two targets, 2 misses and 2 FTNs (Failure to Neutralize) for a total penalty of 15seconds!! That basically threw the whole match for me.
Before heading to this match, I made sure my Revolver spring tension was set and locked at 7lbs, checked all my primers to make sure they’re below flush and hand seated them.
But I still had one light strike, out of about 60 rounds. I have a theory about what’s causing the light strike and I’ll see if I can remedy the situation. If not, I’ll have to set my tension weight to a higher weight and deal with the slightly harder trigger pull.
Went out to the Custer Sportsmen’s Club for the USTRA (http://ustacticalrifle.org) final TacRifle match of the season. Squadded with a bunch of great & experienced shooters. I came in 6th overall at this match and had a ton of fun. It’s always exhilarating to shoot a Tactical Rifle match, you shoot anywhere from 30-50 rounds of ammo per stage and you get to run and gun with long guns like you would in a traditional USPSA/IPSC type stage format.
I brought out my high-speed camera and gun-cam and spliced them together. Hope you enjoy watching it.
Got some time for some reload practice this evening with my revolver. Decided to use the camera to record my session. I used a Casio Exlim FH100 and it’s high-speed function to get the slow motion capture.