The report didn’t appear to become audibly intimidating until the final barrel cuts, most notably in the 18.75” and 16.75” barrel lengths. While there were many flaws in Brandon’s experimental setup as well as limitations in his equipment that combined to prevent him from providing too much in the way of objectively repeatable measurements, his following observations jumped off the page:Īs the barrel length decreased, audibly the differences became clear (even with earplugs). He doesn’t mention how well the rolling office desk chair worked out on the grassy field, but I digress – that wasn’t really the focus of his thesis, anyway.īack to the matter of barrel length planning. Here is Brandon in his “laboratory” setup:Īttention to detail is important in science note Brandon’s clever placement of “SURROUNDING BRUSH” for his testing. Whether or not one agrees with Brandon’s “scientific methods,” his thesis idea was undeniably brilliant, and it definitely makes for some entertaining reading.
In 2011, Brandon Louis Clark, then an enterprising student at the University of South Florida, earned his degree (at least in part, I hope) by publishing his honors thesis titled “Effect of Barrel Length on the Muzzle Velocity and Report from a Mosin-Nagant 7.62x54R Rifle” (Outstanding Honors Theses, Paper 8, 2011, ). Still, I wondered whether there was some objective way to decide exactly how much to shorten the barrel.Īs it turns out, the answer is yes – sort of. How much to cut off, though? Jeremy was looking for impressive muzzle flash and report, and that sounded great to me as objectives, too. The first and easiest decision was that the barrel was going to shed a few inches at the muzzle end. While I have no fear of drilling and tapping, generally, I do not currently own a drill press this makes properly placing and aligning the holes, and controlling their depth, somewhat dicey, at best. The Secondary Directive was that there would be no drilling and tapping of the barrel. The Prime Directive of my Mosin project was that there could be no operations that I could not do, or learn to do, myself.
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But he had a number of steps performed by his professional gunsmith. Jeremy’s Mosin project gun is undoubtedly a beast with many cool features.
Here’s how I did it and what I learned along the way. It wouldn’t hurt if I could acquire some tools and learn some new gunsmithing skills in the process. Being a fan and practitioner of DIY amateur gunsmithing, the choice was easy to make.
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