There are so many things that go unseen that can get a guy all screwed up. I’ll lay one on you guys that I’ve been dealing with for the last two days. It’s educational and might help guys understand what we’re up against if you are after the utmost accuracy. I built a barrel for another one of my M3’s. Have a topic about it. Gun wound up becoming most guys dream gun. I decided I just couldn’t leave well enough alone and put an L-tech on it. I have them on my other slug M3’s and like some of the features. I knew there was going to be new tuning parameters but I already installed two so I felt confident.
After a good bit of testing and adjusting, I found magic. Only shot out two 114 yards but was quite thrilled. The gun was as good or better than it was pre L-tech. Later that night I decided to shoot some more and that’s when the train went off the tracks. Velocities jumping all over and groups sucked. I tore the gun down four times playing with seating depth because the jumpy velocity is a symptom. About an hour ago I was at the point of deciding just to start smacking the back of the slugs with stupid high reg pressure to see if something would change. I turned the reg up and the hammer spring, then started loading a mag. I noticed something I couldn’t believe. Zan has two different 30gr slugs. The original that my gun shoots 943fps and all groups are under 1.5” at 100 are 7.54mm long. These other Zan slugs are 8.11mm long. Their speed is all over the place because they are too long for my leade. And they shoot like sh#t.
So because Zan changed a little something that they might consider better, my pride and joy now shoots like a turd. If this is their new slug, I have to recut my leade. Moral of this story? Mufasa, sometimes you can do everything right. But outside forces are working against you. I was chasing one thing that I perceived as the problem, the new L-tech, but it was another problem that just should not happen. Here’s a pic of what I saw when I realized there was a problem.
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