RockyMtnTactical
Member
- Joined
- Oct 21, 2006
- Messages
- 3,539
I have been in dust storms hunting in the desert southwest. Never had a problem shooting an AR15 in those conditions.
1. People who have been in the military in the 60s and 70s that were saddled craptastic A1 rifles that had serious reliability problems. These shooters are usullay over 50 years old and more often than not hate the AR-15 platform because of real life bad experiences with them.
2. People who don't own/never shot/ or may have put a few rounds through a AR-15 once, that read the horror stories about the government issued AR-15s and have a very negative impression of the rifle but no experience with them. Often times this group would state that they think the gas piston ARs or AK-47 variants are far superior to the DI AR-15s, but once again with no experience with any of the rifles.
3. Current soldiers and civillians who shoot, own (often multiple copies) of AR-15s who have had a lot of experience with the modern 'perfected' AR-15s who have had little to no problems with the rifle, but also understand the limitations and extra bit of maintenance the rifle requires.
Well i don't own an Ar-15 nor have i shot one, but the fact that israel readily accept M-16s over Aks and Galils should say something
The M-16s uses gas-tube system, which results in carbon being blown back into the chamber.
The famous Wild Bill used to unload and reload his cap and ball navy revolvers every morning (he slept with them loaded) He would also clean the every day too. He did this because he knew that his life depended on it.
Just wondering when the Army will have the deck stacked enough for the M16 family to actually follow the orders given by congress to ‘prove’ the M16 family can cut it.
chieftain said:We have had congressional hearings and a shoot off ordered.
Let’s find out whether the weak M16 bolt is from poor engineering or excessive heat being dumped on it by the gas system?
Let’s get a better extractor, and stop having to jury rig a fix.
The Jessica lynch convoy is the immediate example that comes to my mind.
tmpick said:Personally, I'm wondering exactly how much money it cost Heckler and Koch to have Tom Coburn bring this whole matter up in the first place.
Not sure who made it; but in a 4-page thread on the M4 jamming said:The M16 craps where it eats which causes the problem
I get tons of emails from Marines and US Army soldiers complaining all the time. Sorry you are not on their email list.
The M2 and M249 they had also failed. Perhaps there is something besides the weapon choice at play there?
Personally, I'm wondering exactly how much money it cost Heckler and Koch to have Tom Coburn bring this whole matter up in the first place. Was it a direct "donation", or some lobbyist whispering sweet nothings in his ear? Seriously, I wish I could follow the money on this one. If it was a matter of just switching over to a piston-driven M4, why are two of the weapons from HK? If the XM8 didn't make the cut last time around, why are they pushing it again? I think these are legitimate questions, especially since they were pushing for the test to take place before they could get the SCAR-L's in.
Any thoughts?
How about neither? The original M16 bolt was designed for a 20" rifle with a gas port at about 13". When you use the same bolt in a 14.5" rifle with the gas port at about 8", you increase the stresses on the bolt by about 150%.
The M4 bolt basically breaks in two places - at the cam pin hole and at the base of the locking lugs. This is because the cam pin is larger than it has to be (and so the hole in the bolt in bigger). The lugs breaking is due to a right angle increasing stresses and an undercut lug where the extractor is. You could call it poor engineering; but considering it wasn't designed for the role it is currently fufilling, I wouldn't.
As for heat, some piston rifle manufacturers have suggested that heat is an issue in the micro-cracking of the bolt; but none of them have offered actual evidence of this other than it doesn't happen in piston rifles (which have an entirely different operating system and don't necessarily have the same load increase). I'm skeptical of this suggestion because one of the places the bolt breaks (cam pin hole) is separated from the gas cycling the action by the gas rings. The second place (the bolt lugs) is subject to the same heat in either rifle.
Numerous people have introduced improved extractors for the M4. None of them have been adopted because they don't represent enough improvement over the existing black insert with heavier spring and O-ring; but they do cost a lot more.
Also, you are once again confusing an M4-specific issue with an M16 issue. The improved extractors are only necessary in the M4 series because the shorter gas system means that extraction begins earlier than it does in the M16. Because extraction begins earlier, brass has not shrunk away from the chamber walls at much and more bite is needed.
The M2 and M249 they had also failed. Perhaps there is something besides the weapon choice at play there?
Second, anybody who has fired a roller-delayed blowback system (HK91, HK93) knows that they are quite filthy and will easily equal an AR for a dirty, hard-to-clean chamber. Yet we never see the same argument there. Why that is, I don't know but it has always puzzled me that people will criticize the AR for carbon in the chamber and praise the G3 for reliability in the same breath.