Download The Gun Digest Book of the AR-15, Volume 4 by Patrick Sweeney PDF

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By Patrick Sweeney

You would not do that for your AR, yet Sweeney did it here!

With brands branching out into nontraditional calibers, and continuous advances in optics, ammo and linked apparatus for the AR-15, Gun Digest booklet of The AR-15, quantity IV brings you recent at the most modern advancements within the AR undefined, together with chapters on:

  • .223 vs. 5.56: what is the problem?
  • Various .300s of the smaller-than-.308 size
  • Wilson 7.62X40
  • The .17 HMR, ADCOR DI carbine, and SIG 516
  • DelTon and Stag palms? Oh yes.

Plus, writer Patrick Sweeney hits the variety and topics those weapons to a couple severe trying out. to determine simply how a lot abuse they could stand up to, he:

  • Buried them in airborne dirt and dust and sand
  • Submerged them in water
  • Dropped them from heights
  • Ran them over with trucks
  • Froze them
  • Blasted them with a shotgun

And then he fired them, documenting the total technique in photos!

Kick again and watch in horror as occasions unfold—and discover which weapons live on the torture.

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Extra info for The Gun Digest Book of the AR-15, Volume 4

Example text

AAC makes the uppers and rifles, and everyone is happy. 300 Whisper. They are, however, quite minor, and you could use reloading dies for either with the other and not notice a thing. As long as the dies are adjusted to work in your rifle you will be fine. In fact, rifle makers who are not in one or another camp will in many cases mark their products as being able to use both cartridges interchangeably. 300 brass that happens by, you may find that your ammo may not work in other shooters rifles.

300s is that they use the standard AR-10 thread pattern for fl ash hider and suppressor mounts. - He wanted the most impact he could get, at the lowest sound level. - He wanted the least fabrication of components. If at all possible, everything should be an off-the-shelf item. - He wanted it compact. A super-quiet rifle the size of a belt-fed machine gun was stupid. The most common firearm in military use at the time (and still, really) was the M16. This was before the M4, so a shorter, carbine version of the M16 would have been a Colt Commando or one of the carbines Colt had made.

Life was good. However, there was the small matter of making it a standard item. The group that sets the dimensional standards for ammunition in the United States is SAAMI – the Small Arms and Ammunition Manufacturing Institute. SAAMI (pronounced “Sammy”) does not invent anything. , of a caliber and its chamber. Members can propose cartridges. Accepted cartridges get named by those proposing them. Once accepted, the dimensions are in the realm of “freeware” in the software industry. Anyone can make it, but if they make bad ammo they’ll go out of business, regardless of the product being something SAAMI has approved.

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