T.G.I.F! Hope you got through your week happy, healthy and a little wiser. I was able to get some range time in and I’m currently putting the wraps on a Ruger RPR Gen 3 review. What a rifle folks! I won’t get into the details other than to say get one.
It’s also time for our weekly shoot the shit. For new readers, a shoot the shit is a social interaction during which the participants don’t need to know anything about the topic being discussed, they are free to make any unsupported comment, use uncensored profanity or change the subject. Shoot the shits promote people to people interaction and are far more effective than paying a jackass, who studied psychology so they could understand themselves, over $150 per hour for what a shoot the shit will accomplish for free. I recommend that you have weekly shoot the shits with your coworkers and staff, friends and family. You’ll see positive results in short order. So, let’s shoot the shit.
Our industry is without question one of the most innovative on the planet and contributing $50 – $52 billion annually to the country’s GDP. Covering its news and events is a full time endeavor and one producing some truly outstanding media, but we are not without our own prima donnas. I, recently read a short article by such an individual, who allegedly is an authority on ammunition and shooting in general. I will not link the article because I don’t want to malign the publication or its author.
The thrust of the article was to get the reader to accept that muzzle velocity has nothing to do with barrel length and went as far as to suggest that if you think a shorter barrels produces lower muzzle velocities you’re delusional. He makes his point by talking about “loads, chambers, and barrels”; all of which was designed to impress the reader, who is undoubtedly sitting there saying “no shit Sherlock”, with his enormous knowledge. Indeed, all of these things influence muzzle velocity but it does nothing to establish that shorter barrels produce lower muzzle velocities. He also pulls a number of 25 fps, out of thin air, as the “proper” muzzle velocity lost for every inch of barrel reduction.
The way you answer the barrel length/muzzle velocity relationship question is with a structured approach along these lines; start with a 24” barrel, using the same ammunition from the same lot, chronograph ten rounds, then cut the barrel back one inch repeating that process for however many cycles are needed, but making sure you have enough barrel length left to stabilize the projectile. The procedure should reveal that muzzle velocity decreases per inch reduction of barrel length; however, the amount of the incremental decrease will vary barrel to barrel. You don’t need to be a luminary, it’s simply physics and not magic. I’ve personally observed changes in muzzle velocity from 30 fps to 50 fps reductions per inch.
For example, Federal Ammunition uses a 24” test barrel to measure the velocity of their .308 Winchester 168 grain GMM. The company quotes muzzle velocity at 2650 f.p.s. (feet per second). I shot 10 rounds using that ammunition out of a Ruger RPR .308 Win 20” barrel with the following results.
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Using my average velocity of 2514 fps, it’s clearly lower than Federal’s test barrel at 2650 fps. My 20” barrel gave up 136 fps. My 20” barrel is 4 inches shorter than Federal’s 24” barrel, dividing 136 / 4 translates to a 34 fps loss per inch.
So, not everything that you read online is accurate or even factual but a few of these publications are more interested in likes and retweets than the quality of what is put out.
I can’t stop laughing…
Last but least…
Folks there is no end to Rep. Alexandria Ocasio-Cortez’s display of ignorance or falsehoods. In her latest display of ignorance, she publishes an Instagram video in which she claims that young people are more “informed” and “willing to go to the streets” in protest than earlier generations.
Here you are AOC…
Have a great weekend folks be safe and spend some quality time with your buds and family it’s time well spent.