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Posted: 9/23/2010 9:37:32 PM EDT
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Okay, a know it all cop told my Dad at training the other day that the double pmags he has clamped together will crack the lower receiver on his sr-556. The guy told him that the the difference in weight of the loaded mag hanging and putting sideways pressure on the receiver will crack it vertically along the front of the mag well. The weapon rides vertically in a vehicle mounted weapon rack and he works in a rural mountain location and drives a lot of 4x4 and dirt roads.
I told him that if this was true, that it would mean that ((((ALL)))) AR-15 type weapons are really fragile and POS. Also, I told him that I've never heard of anything like this happening and I didn't think it was even possible for this to happen. In short, it is my opinion that even the thought of this is total BULL SH!T!!!  But I am human and I am seeking the thought of the hive mind on this issue
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I've seen a truck roll over a Pmag without cracking. I have not seen a Ruger pass this test yet. So I'd go with the Pmag destroying the Ruger lower.
J/K. That is stupid to think polymer sheeting is going to break before forged aluminum. Tell the cop if they do break his lower I want to buy those magazines. Posted Via AR15.Com Mobile |
I've had a cop tell me that they keep their ARs loaded with the bolt open because ARs may go off due to the free floating firing pin and are known to slam fire. 
I've had a gunner's mate tell me that CLP will corrode the plastic furniture of a MK18. 
I've had a soldier (Sgt. Maj. of all things) tell me that AKs were inaccurate because they had smoothbore barrels. 
I've had a Marine tell me that a .50 BMG will tear your limb off if it flies within 6 ft of you. 
I've never had an Air Force guy tell me any "facts" about weapons. Then again, I rarely see them. Just because they carry a gun to work doesn't mean they are knowledgeable about it. |
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i KB'd an AR so badly the magazine well was bulged into a "D" shape - i ended up with two small cracks in the lower receiver. if it took that much destructive force (i wish i still had pictures, it was worse than most KB pics i've seen posted here) to put a couple small cracks in a magwell, there is no way hanging an extra mag off the side will. |
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I've also heard that the 5.56 tumbles in flight...  Had a drill sergeant tell me this. Same way they tried explaining to us that "bullets travel in an arc." Which is true because of gravity and that you are pointing the weapon in a very slight incline, but when they draw a picture of a rifle in line with the earth's surface, and then draw what looks like the St. Louis Arch coming out of the barrel, it's no wonder some folk walked away confused. |
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Interesting that only 57% so far realize this is total fantasy. The cop may have damaged his rifle in some other way and tried to blame it on magazine weight, but it is not ever going to happen by a coupled pair of loaded mags just being locked into a rifle in a vehicle riding on bumpy roads.
To test, lock a mag into your rifle; stand the rifle on it's butt and hold it by the barrel; now put one foot on the magazine and jump on it. Then put the muzzle on the ground, hold the butt and jump on the back of the magazine. If the lower receiver cracks, contact the manufacturer Just kidding, nobody do this, please!
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I've also heard that the 5.56 tumbles in flight... Had a drill sergeant tell me this. Same way they tried explaining to us that "bullets travel in an arc." Which is true because of gravity and that you are pointing the weapon in a very slight incline, but when they draw a picture of a rifle in line with the earth's surface, and then draw what looks like the St. Louis Arch coming out of the barrel, it's no wonder some folk walked away confused. What is it about these Drill Sergeants? I had one at Ft. Gordon in 1966 draw the same picture on the blackboard, and even then I knew better (but kept my mouth shut). Level barrel, bullet comes out at an angle and proceeds to follow it's trajectory. No wonder most guys fresh from 'training' can't hit shit. Maybe it IS rocket science. |
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I've also heard that the 5.56 tumbles in flight... Had a drill sergeant tell me this. Same way they tried explaining to us that "bullets travel in an arc." Which is true because of gravity and that you are pointing the weapon in a very slight incline, but when they draw a picture of a rifle in line with the earth's surface, and then draw what looks like the St. Louis Arch coming out of the barrel, it's no wonder some folk walked away confused. What is it about these Drill Sergeants? I had one at Ft. Gordon in 1966 draw the same picture on the blackboard, and even then I knew better (but kept my mouth shut). Level barrel, bullet comes out at an angle and proceeds to follow it's trajectory. No wonder most guys fresh from 'training' can't hit shit. Maybe it IS rocket science. I never listen to extra 'techincal data' given from instructors at schools or ranges (I'm USMC, 0311). I've been told in every single ACOG/RCO class I've been given that for every 100m extra, you multiply the number of clicks needed to move POI 1 inch by 3 (3 clicks at 100, 9 clicks at 300, 27 clicks at 900yd all to move poi 1 inch). It's obviously wrong. Somebody somewhere inverted the wrong fraction. I don't know how many times I've been told an AK bullet that hits me square in the forehead will skim around my skull and exit the back side of my head leaving me unharmed. 5.56mm rounds magically bounce around inside people, go into their wrist and out their stomach etc... The .50bmg has a muzzle velocity of 7000+fps. The m16 has the barrel mounted at an upward angle in the reciever to line up with the sights. The Ak47 can pattern no more accurate than 2ft groups at 100yd because it's made of sheet metal. The Ak47 fires from an open bolt... I've learned to just bite my tounge. All due respect to my fellow service members, but very few really know what's going on. So if it sounds way wrong, don't believe it. I don't know what the law enforcement circle is like but it can't be too much different. That's not to say there aren't people out there who know what's right/wrong and why, just that they're few and far between in my experience. |
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Someone tell that guy his fly is down... Or is that one of those darned intraweb Easter Eggs???   
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Quoted: Don't think he grew up wearing many things with zippers Someone tell that guy his fly is down... Or is that one of those darned intraweb Easter Eggs???  At least his waistband is above his junk... |
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The lower receiver block I bought from Brownell's and have used on several lowers uses the magazine well to "clamp in" and then you vice the block. I've put some pretty serious torque on my lowers installing buffer tubes and whatever else while viced up that way... If having a magazine in there that weighs the same as two normal magazines will crack the lower, I would be EXTREMELY surprised. Manufacturing defect for sure. There's no way a properly manufactured lower would crack from that... Unless you smashed the magazine a bunch of times on the side with a hammer and the mag didn't break. That's about the only time I could see that happening. Although I'm willing to bet a lot of money the mag would break before the lower. |
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I've also heard that the 5.56 tumbles in flight... Had a drill sergeant tell me this. Same way they tried explaining to us that "bullets travel in an arc." Which is true because of gravity and that you are pointing the weapon in a very slight incline, but when they draw a picture of a rifle in line with the earth's surface, and then draw what looks like the St. Louis Arch coming out of the barrel, it's no wonder some folk walked away confused. What is it about these Drill Sergeants? I had one at Ft. Gordon in 1966 draw the same picture on the blackboard, and even then I knew better (but kept my mouth shut). Level barrel, bullet comes out at an angle and proceeds to follow it's trajectory. No wonder most guys fresh from 'training' can't hit shit. Maybe it IS rocket science. This. I actually beleived that the M855 round ascended and then fell on its own from the drawing my DS drew in BRM. Maybe they shouldn't start out with a picture of the rifle perfectly parallel to the ground. Posted Via AR15.Com Mobile |
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