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I show this scatter plot: Guns vs. Intentional Homicide. Each circle represents a country. Circle size is proportional to population. Edit: Nevertheless the debate still follows this flowchart.

Revision Sawfly ($30) with Rx insert ($100). If that's too expensive, 3M makes $10 safety glasses that fit over prescription. You should be able to find them in pretty much any hardware store.

Ejection angle is tricky because it is affected by many factors. For example, I had stovepipes with factory ammo that I initially attributed to overgassing. Turns out that bolt carrier went back too far, bringing bolt front way past ejection port. Fixed by inserting two quarters under recoil...

Reliable cycling with weak loads is normal. There's quite a bit of margin in the design to ensure it cycles when dirty, in the cold, etc. Even with adjustable gas block you normally open it up until the bolt locks back, then add a click or two. Now flattened and especially ruptured primers...

What do you mean by "overgassed"? Case swipe (shiny crescent on bottom of the case where brass flows into ejector hole and is then swiped as the bolt rotates open)? Keep in mind that some published .308 loads are tailored for bolt actions and might be simply too strong for AR-10. For example...

Details.

Yes, but it's very rare One example is 2001 case in New York where Colt M1991 A1 was sucked into MRI scanner and discharged there. The safety was on. Slide remained forward and empty casing was still in the chamber after the accident.

It works great. No issues with reset.

Mora.

There are two reasons. First is biased sample. Few people feel like posting average results. So if somebody says "my 1911 shoots 1 inch groups," it likely means "I shot this 1 inch group once with one of my guns, and I'm very proud of it". Second, there is really a lot of difference between a...

Two: Hodgdon Clays and IMR 4064.

The article you linked to advocates CEP, and I agree that it's a good metric. Few people seem to know about it, so you'll need an easy way to convert from CEP to group size and back. One rule of thumb is that CEP in centimeters is approximately the same as 5 shot group size in inches. Details...

7 round limit was struck down as unconstitutional, it's 10 again.

If you have a telephoto lens, Kenko makes Lens2Scope adapter that works very well (and costs less than comparable complete scope).

Extreme spread is a very noisy metric. It is also affected by number of shots, so it's hard to say whether your numbers are good. Even more so because those are best numbers from unknown number of trials ("best" metric is noisy, average is much better). Unless you have enough observations and...

Taking the average of several consecutive groups is actually better than looking at the largest group. In your example CV (noise to signal ratio) of average of 5 five-shot groups is 0.12, CV of largest of 5 five-shot groups is 0.16. Still better than the smallest group, though - CV there is...

https://github.com/lstange/mcgs lists CV for various group sizes.

Not worth it I tried, and after spending considerable efforts eventually scrapped the idea. I expected magazine problems others referred to, but magazines worked fine. One issue was that cuts in barrel extension that let bolt lugs through have the same width for 5.56 and 7.62x39, but the...

Flash bang grenade is brighter, louder, and unexpected. Pistol rounds or even .223 indoors are loud, but not that loud (at least without a muzzle brake). I shot them a few times with no hearing protection before I knew any better, so this is based on first-hand experience. My hearing is...

I was referring to this part: "A Matlab program was written that simulated 100000 shots from a rifle, with a one MOA double sided standard deviation of cone angle, at a target 100 yards away." and later "we have simulated the perfect one MOA rifle".