Mega Rad Gun Thread

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What is your go to cheap ar ammo?
for random test and verification after i service a weapon i'll usually go through a 20 round magazine of Federal XM193 or equivalent (S&B, IMI, MKE, PMC, Fiocchi, Winchester, CBC, e tc all make an M193 equivalent) and a final 20 round magazine on full auto or burst (if applicable) of the same. if the customer requests a particular ammunition type or it's an H&K roller delay, i will ask for a sample of the ammo they want to use or the SKU so i can order the same stuff, otherwise it too will be tested with M193. i will usually also test 10 rounds of Mk 262 (5 semi, 5 auto, open tip match or if it's a hunting rifle then with HSM GameKing's or TRU GameKings, whichever is in stock), M855, and M196 (tracer, long bullet). i bought 2 barrels of Q3340 that i'll use if i run out of other stuff or if it's something that doesn't play nice with anything else, since it's technically a .223 cartridge by external dimensions but has an M193 equivalent powder charge.

if i have had to rebarrel i'll use two rounds of M197, a high pressure test load after the rebarrel and then inspect for defects. recently i've had to stupidly test with M855A1 by request since some agencies want that done despite probably never ever going to authorize it for use.

i go through a little under 1000 rounds a month for rifles typically. pistol testing has some slightly different ammunition choices but they're the equivalents pretty much, and i go through more of that than anything else.
 
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I ask because M855 is gay and nobody should seek it out unless they want it specifically to match up with certain reticles in certain optics for range usage.
I read somewhere that they are good for 1:8 twist rates and can go through light barriers and faster than the M193. Plus they weirdly very cheap to buy.
 
I read somewhere that they are good for 1:8 twist rates
I am not an expert in twist rates but M855 was originally fielded in M16A2s and M249s, both of which have 1:7 twist barrels.
go through light barriers
So does M193, it has proven superior against AR-500 steel due to bullet construction and the behavior of lead under pressure compared to M855
Plus they weirdly very cheap to buy.
Price and availability are another reason to buy them but I don't think there would be any reason to pay more for them if M193 is available.
 
good for 1:8 twist rates
ideal stabilization rates for a given barrel thread (twist) is determined by the length of the bullet, not a specific design. a 1/8 twist is largely used for bullets about 1.05 - 1.10 inches in length for a 0.224 bore. while it's kind of true that for a given similar material, the bullet with the higher mass will be longer (people preferring 62gr M855 vs 55gr M193), this is not always true (different material density from production or design), and spin stabilization for external ballistics is more important at longer ranges due to cross-sectional performance when exposed to environments (barriers, wind, et c) when you want penetration or a high degree of potential accuracy (the ability to repeatedly strike a given target given all other variables are the same).

for most shooters, including professional ones, it is unlikely this will be terribly important in a "fighting rifle" if you purchase ammunition that can be reasonably stabilized in your particular barrel and that is both reliable and economical for repeated use in practice and defense/hunting.

also M193 tends to is in theory more mechanically accurate (the mild steel core of M855 is not reliably in the exact center of the bullet when spun due to mass manufacturing compared to a homogeneous lead core) and performs better with higher velocity than M855 in most fighting rifles with the exception of barriers like hollow core doors, glass, or concrete / cinder blocks / brick work. the general concept of M193 is to achieve a very high velocity so when it strikes a target, the bullet penetrates and almost immediately shatters while tumbling, making wounds that will bleed out quickly and be very difficult to contain increasing casualty rates for the enemy.
 
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The bigger news is that uppers are now a controlled item and are serialized. ggwp.
Source???

EDIT: Watched a vid. All this shit, the upper stamps, 80% stamps, and the brace bs is aweful. I can't believe they are jamming this all at once. What is the future of 80% lowers going to look like? will a "60%" lower" be allowed? Such BS. Time to spend money before June I guess....
 
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What do the new ATF rules mean for (actual) pistols now? If you want to send off a glock slide assembly for an optics cut or to have night sights relamped does that mean you have to follow shipping rules as if it were an actual firearm now?
 
The ATF is going to absolutely and irreversibly shatter the gun market if they turn uppers and pistol slides into transferable receivers, holy shit.
 
The ATF is going to absolutely and irreversibly shatter the gun market if they turn uppers and pistol slides into transferable receivers, holy shit.
That seems a little bit pessimistic. It'll be a pain in the ass for sure, but the vast majority of people buy complete guns. My real concern is what comes next if this is allowed to remain intact. If they can just change their mind and people just go along with it.
 
It'll be a pain in the ass for sure, but the vast majority of people buy complete guns.
The spare parts market includes more than a metric tonne of pistol slides, both surplus and salvage. That's not even counting the hundreds of thousands in revenue that uppers bring in to many businesses, assembled or otherwise. Requiring a transfer also limits online orders since FFLs that will do it for you are becoming fewer and farther between, run out by big-box stores that have better prices and don't need to do transfers to make money.
 
That seems a little bit pessimistic. It'll be a pain in the ass for sure, but the vast majority of people buy complete guns. My real concern is what comes next if this is allowed to remain intact. If they can just change their mind and people just go along with it.

I bet the volume of complete uppers and stripped uppers is waaaaay bigger than complete guns. Stripped and parts kits is an enormous market, prices are easily made up with volume, especially how cheap AR upper assemblies were.

The big issue is classification and definition of "upper" now, since it effects how gun kits are sold, i.e. gun parts kits that are were not firearms and could be easily moved. I'm sure more than one surplus distributor will take a huge hit.

now the question is, are uppers now required to be serialized, what about all the previously owned guns and guns that don't really have an upper, like AK. Originally AK trunnions were classified as receivers and AK based shotguns like Saiga still are.

ATF already had a wildly fucked up system that I could probably talk about for ages. With this new bullshit it's just going to pile up to a degree that no sane person could tell if something is firearm or not.
 
That's the point.

"BEEP BOOP Metal shavings and oil detected in your domicile, Citizen, the Helicopter is on the way. Hope you and your dog's will is up to date."
 
Maybe I am simply confused or have not been paying attention, but I am of the understanding that the pending rules are not in the process of becoming law, but merely in the process of getting ready to be presented, Am I incorrect?
 
Maybe I am simply confused or have not been paying attention, but I am of the understanding that the pending rules are not in the process of becoming law, but merely in the process of getting ready to be presented, Am I incorrect?
The ATF cannot rewrite law, merely interpret existing law in such a way they deem necessary. So they're choosing to view things differently to be more inconvenient than they already are.
 
Well I checked Brownells to see if there was any panic buying on uppers, none so far.

Also looked into other gun forums and nothing so far.

Also is the Magpul bad lever any decent or just tacticool stuff?
 
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