Quote:
Originally posted by debaser
My apologies for not responding sooner.
I assume they dumped the sand out first, since two handfuls of sand would prevent the bolt from moving rearward to chamber the first round.
|
Maybe they did, they weren't exactly specific on what they did with the sand, I just assumed, given an absence of statement, that they left it in, but am now skeptical at such a statement.
Quote:
|
But it does not "vent" into the reciever. It is channeled through the bolt/carrier and out of the rifle.
|
Well, I've not had the chance to get under the hood of an AR-15 at all, but I've gotten the general impression that it blew it over the moving parts directly rather than using a conventional piston. Is the gas ever in contact with the extractor?
Quote:
|
With all due respect to the Russian gun site, I prefer to go with personal experience and US Army reports, both of which show it to be a very reliable weapon. It operates under the same pressure as an M-16A2, so I don't see where they get that it jams. The only time I have ever seen stoppages I would call a "jam" was a "bolt-over" failure to feed caused by the use of an old magazine and a double feed caused by a failed extractor.
|
Well, think what you will of my sources, it does use the same round, which exerts the same pressure, but the shorter barrel results in greater pressure on the action, thus increasing the rate of fire ever so slightly. ~1 more round a second over A2-A4 variants of the M-16. The operating method of the XM-15 series results in carbines having to operate under greater mechanical stress, thus increasing probability of reliability falires.
Quote:
|
To be as accurate as the M-4, the 108 would have to have the same tolerances as the M-4. If it is as reliable when dirty as you say, then it is not as accurate. Granted, the longer sight radius will make the 108 easier to aim, but since the M-4 comes with an optics package, that that is rather irelenvant. The 14.5 inch barrel still reliably fragments at 200 meters, which is perfectly acceptable given US doctrine.
|
The M-4 variants are carbines, the AK-108 is a rifle. They operate and are constructed differently around these principles. A number of my fellow gun lovers have informed me that there is something of a 'barrel threshold' for M855 or other SS-109, that with a 1:7 twist (the optimal twist) on that round, you need 16" of barrel to give appropriate velocity for regular and reliable fragmentation at longer ranges. Given the general operating method of the AK-107/108, long range shooting is (finally) an applicable notion.
Quote:
|
I had the honor of shooting with the SOTIC guys a few months ago. They all used Black Hills custom loads for their .300 Winmags.
|
Interesting, I've heard statements that the SOCOM has been using Black Hills 5.56 for some time, it was said somewhere on
http://www.ammo-oracle.com
EDIT: Had to fix quote tag...