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This topic was way off-topic for the thread is was introduced in but warranted discussion. In 1944, the Army realized that Cartridge, Ball, Caliber .30, M2, when loaded with the current propellant left considerable empty space in the case. And thus started what would later be known as the...

Okay, in 1957 S&W started giving all there models a model number, the .38 M&P became the Model 10, the Registered Magnum became the 27, etc, etc. But, does anyone have the dates the dash numbers were introduced? Specifically, the Model 10 dash sequence. When did the Model 10-1 come out? The...

If someone tried to sell you a new cartridge with this ad copy, would you buy it? "The predicted increase in lethality of a high velocity . . . round over . . . other conventional calibers has been explained on the basis of a combination of size of transient cavity (shock contributor which...

It order to not clog up another thread, and be admonished again, I'll start my own. 1) Ball Powder Ball powder was a necessity brought about by the case volume and the energy density of available IMR propellants. In order to meet the velocity and pressure requirements, a certain energy...

Sorry, but I can't stand to see potentially dangerous information be posted without rebuttal From the link you posted, a 50% increase in bolt load from a polished chamber to one with a coefficient of 0.05: You don't read your own links, you cannot polish to a coefficient of 0.05. Polishing...

Interesting. (The thickness of slice #2 is less than a pixel wide.)

https://www.youtube.com/watch?v=geGtS0157_0 :evil: Now, we're done.

Well, after about eighty hours of CNC (Crankin' 'N' Cussin' on a manual machine) my rifle is finished. First metal was cut on the 4rd of July, test fired on 26 September. Not to mention at more than a hundred hours of drafting and design work. [In these two photos, the observant may...