Comments by "" (@neutronalchemist3241) on "Garand Thumb" channel.

  1. 1911 lovers, because the 92 replaced it. SIG lovers, because the 92 did beat their pet. Glock lovers, because it's not a Glock. Nationalists, because it was adopted despite being foreign designed and owned... The list of haters is particularly long in its case.
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  2. I was just wondering "what's weird with this clip?" Then realized "Hei! They are blending with the environment!"
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  3.  @-Zevin-  From the point of view of the infantry rifle, 6.5mm proponents were right. You can see how, after more than a century of development, 6.5mm "tactical" ammo still gravitate around their energy level (6.5 Grendel is a little less hot than 6.5 Carcano. .264 USA / .264 LICC is a little hotter...). BUT, among the 6.5 users, only the Italians made a MMG in 6.5, used it in WWI, and decided it was underpowered (it was not an impression. The 6.5 Carcano bullet has exceptional penetration on anything softer than lead, but very poor on anything harder). So they made the 8mm Breda cartridge exclusively for MMG use. Swede and Norwegians developed the 8X63 and 7.92X61 for the same reason, the Dutch adopted the 8mm Mauser for their MGs. However, from a logistic standpoint, it's better to have a cartridge for infantry rifle and one for belt fed MGs than two for infantry rifles (.30 carbine, 8mm Kurz...)
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  4.  @xyz-hj6ul  You can self make plastic injection (modellers had done it for decades). You can't form brass by yourself.
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  5. The name of the cartridge is 6.8 TVC.
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  6.  @kaijucifer3544  The ammo have a steel washer at the base. All the ammo spent in training can be recovered with something as complicate as a magnet. In war you have other things to care for than microplastic.
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  7.  @bertram-raven  The polymer case increases accuracy, because the resistance the case makes to the extraction of the bullet from the case is more consistent (that doesn't mean every polymer case is more accurate than any brass case. That's ONE element). Being plastic self-lubricating, the chance of jams should be reduced as well. Also plastic tend to don't dent or bent permanently (it returns in shape). Thermal stability in that range is not a problem, and plastic seals the powder better than brass. The only real problem of plastic is to be inserted into a very hot chamber and left there for some times.
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  8.  @Jake-bt3fc  It's inherent if you put the trigger group in the rear, and have a long linkage system (even, simply, a bar) for the movement of the trigger to reach it. It's not inherent if you put the trigger group over the trigger and, instead of transferring the movement of the trigger, you transfer the movement of the hammer. That means, instead of having a long trigger group, to have a long hammer. Ammo don't care if the movement of the hammer that hits them is creepy, or mushy.
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  9.  @Jake-bt3fc  Who told "best"? Military triggers are not the best triggers, and don't need to be.
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  10.  @Jake-bt3fc  You said "the best ar triggers", not "an ar-15". Military AR15 have not "the best ar triggers". They are heavy and creepy. For a bullpup trigger to work as I stated, it has to be designed as I stated. It' can't be an aftermarket part. The Kel-Tek RDB works that way. The RDB trigger, out of the box, is already considered "marginally better than a stock 'milspec' AR-15 trigger".
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  11.  @great_deception  If you have to train an entire army, the "familiarity" problem does not exist. Were the M16 controls similar in some way to those of the M14? You can use the TV ammo in any weapon made for the .308 Win, changing the barrel. Not so much the .277 Fury. In case this had been adopted, Beretta would have manufactured it (you can check Beretta's involvement in the bid). They have no problem in manufacturing hundreds of thousands rifles/year if needed.
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  12.  @great_deception  Sorry, what are YOU talking about? You did put among the objections: "plus from a firearms brand that hasn't mass produced firearms before". Fact is that, had the rifle been adopted, Beretta would have produced it. IT WAS IN THE BID. IT WOULD HAVE BEEN MANUFACTURED AT BERETTA PLANT IN GALLATIN, TENNESSE and Beretta can mass-produce any kind of firearm just like SIG. Then, here we are changing caliber as well. And many armies changed rifles (or handguns, for that matter) and ergonomics without even changing the ammo. Recruits are not some kind of rifle experts, used to a platform. If you have to train an entire army, the "familiarity" problem does not exist. You have to train all of them anyway. it doesn't count to what platform.
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  13. Nice to see you!
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  14.  @notjaisavage740  To have the same performances than the SIG with lower pressure, it needed a longer barrel. So, since the dimensions of the rifles were specified, a bullpup.
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  15.  @Jake-bt3fc  You should really read before answering. This is a military rifle. It' should be compared with military rifles. AR military triggers are nothing special. A bullpup can have a better trigger out of the box. So the trigger is not an obstacle for the military adoption of a bullpup. It doesn't count what an aftermarket civilian part can do to the trigger, since a soldier is not going to use it.
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  16.  @Jake-bt3fc  Your initial comments was an answer to someone stating: "Bullpup doesn't inherently mean a "trash trigger". Your AR has benefited from over 70 years of improvements and refinements." And that's exactly what it is. Seriously. Try to keep track of your own posts at least.
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  17.  @micahdunleavy9227  To be fair, they said the rifling seemed in good conditions, but there was a lot of copper fouling. A good cleaning could have improved those groups a lot.
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  18.  @lucasmcculla1283  In case this had been adopted, Beretta would have manufactured it (you can check Beretta's involvement in the bid). They have massive tooling as well.
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  19. You never see the Spear fired in full auto from the shoulder.
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  20. The ammo have a steel washer at the base. All the cases spent in training can be retrieved with a magnet.
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  21.  @Jake-bt3fc  A military trigger has to be compared to a military trigger. It doesn't count what the design can potentially do, if a soldier is never going to experiment it. It's like choosing the ingredients of field rations based on what a masterchef would be able to do with them in its restaurant's kitchen. The RDB trigger, out of the box, is already considered "marginally better than a stock 'milspec' AR-15 trigger", and that's all that it needs.
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  22. 30% lighter than .308.
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  23. The bullet is standard FMJ.
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  24.  @KrisTomich  Plastic does not transfer heat to the chamber, so it gets hot later than firing brass cartridges. When it's hot enough to melt the cases a conventional design would already be hot enough to cook of the cartridges. Also, when your barrel is becoming too hot, you can choose to fire form an open bolt. So the case is not going to be in the chamber enough to melt.
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  25. Many range competition firearms have an electric trigger for that reason. It's the finest imaginable. But on a field weapon it has problem with batteries, sealing, EMP... For a bullpup to have a more than decent trigger only needs to transfer not the movement of the trigger to a sear that's behind the magazine, but to keep the sear above the trigger, and only transfer the movement of the hammer behind the magazine (so, not a long trigger group, but a long hammer group). Ammo don't care if the movement of the hammer that hits them is creepy, or mushy. The Kel-Tec RDB is the first bullpup made that way, and the comment is that, out of the box, it has a trigger that's "marginally better than a stock 'milspec' AR-15 trigger". So, good for adoption.
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  26.  @thibaultghesquiere  It does. To suck part of the recoil there is simply a kind of shock absorber that cushion the entire action into the receiver.
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  27. The 6.8 TVC round has the same OAL and diameter than .308, to be used with the same magazines and belts, only changing the barrels. I imagine the same is true on reverse. The barrel would last more with .308, or 6.5 Creedmoor, since the round is slower.
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  28.  @bobjackson4287  6.8 TVC is usable in .308 actions, changing the barrel. .277 Fury isn't. plastic transfer less heat to the receiver in open bolt actions also. The M250 is a failure waiting to happen. No quick exchange barrel (also because the gunner is not going to carry enough ammo to overheat a single one), no tripod attachment. It's not going to solve any problem of the M249.
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  29. SIG Spear barrel moves too.
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  30. The Villar Perosa had been the first SMG, and the best from 1915 to 1918. Bashing the Villar Perosa is like bashing the Messerschmitt Me 262 because post-war jet fighters were better.
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  31.  @TreacherousFennec  The Villar Perosa is an SMG. The subsequent ones had been made differently, like the subsequent jet fighters hadn't the Me 262 two engines on the wings. Until 1918 the Villar Perosa seemed so good that the Austrians simply copied it.
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  32. Different round. It's name is 6.8 TVC. However, the OAL and diameter are the same than .308 Win. So it can use the same belts and magazines.
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  33. Once in mass production, it would have been less expensive than anything made out of brass.
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  34. Not reloadable, but once in mass production, new plastic cases would likely be cheaper than used brass. 6.8 TVC has the same OAL and diameter than .308 Win, so that any weapon in .308 can shoot it changing the barrel. Probably the contrary is true too.
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  35.  @newgamer85  It's the contrary. Brass is a very good thermal conductor. It subtracts heat from the gasses, and transfers it to the receiver. Plastic is a poor thermal conductor. It subtracts much less heat to the gasses, and doesn't transfer it to the receiver. Heat (=energy) remains in gasses, so it propels the bullet faster, and exits the barrel with the gasses (that are also poor thermal conductors). The statement "brass removes heat from the weapon" is valid only in respect to caseless ammo.
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  36. They stated the cartridge is 30% lighter than .308, OAL and diameter are the same (so to use the same belts and magazines).
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  37. It's the contrary. Brass is a very good thermal conductor. It subtract heat from the gasses, and transfers it to the receiver. Plastic is a poor thermal conductor. It subtracts much less heat to the gasses, and doesn't transfer it to the receiver. Heat (=energy) remains in gasses, so it propels the bullet faster, and exits the barrel with the gasses (that are also poor thermal conductors). The statement "brass removes heat from the weapon" is valid only in respect to caseless ammo.
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  38. It has a steel-based bi-metallic case that allows SIG to patent it (steel cases had been made forever, so they were no good for the job).
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  39.  @combatreadychannel  In case this had been adopted, Beretta would have manufactured it (you can check Beretta's involvement in the bid). They have no problem in manufacturing hundreds of thousands rifles/year if needed. The Spear is the same mistake made with the M14, for the same reasons. It's not going to solve any of the problems it should, and will add few others (IE the fewer ammo available, due to increased weight). Particularly tasty is the "outranged" problem, that didn't bother to search WHY the US squads had been often outranged in Afghanistan. It was because the Talibans did put their PK on a tripod. And almost any service cartridge adopted in the last 100 years can deliver accurate fire at over 1km from a tripod. US squads usually don't bother to carry the tripod for the SAW. So much that the new XM250 doesn't even have an attachment for it. Ergo, they'll keep on being outranged with the new cartridge.
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  40. 6.5 TVC has a chamber pressure of 65,000 psi.
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  41. It's the contrary. Brass is a very good thermal conductor. It subtract heat from the gasses, and transfers it to the receiver. Plastic is a poor thermal conductor. It subtracts much less heat to the gasses, and doesn't transfer it to the receiver. Heat (=energy) remains in gasses, so it propels the bullet faster, and exits the barrel with the gasses (that are also poor thermal conductors). The statement "brass removes heat from the weapon" is valid only in respect to caseless ammo.
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  42. Never trust the Army when they tell they want something new. Except when the shit already hit the fan (IE in Vietnam). In any other case, they only want the old crap in a new package.
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  43. It's the contrary. Brass is a very good thermal conductor. It subtract heat from the gasses, and transfers it to the receiver. Plastic is a poor thermal conductor. It subtracts much less heat to the gasses, and doesn't transfer it to the receiver. Heat (=energy) remains in gasses, so it propels the bullet faster, and exits the barrel with the gasses (that are also poor thermal conductors). The statement "brass removes heat from the weapon" is valid only in respect to caseless ammo.
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  44. Mind that the Spear has a moving barrel also.
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  45. The Carcano came before. 1891. The 6mm ARC. really seems a ballistic twin of the 6mm Lee Navy.
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  46. Metal transfer heat to the receiver. Plastic doesn't. Heat remains into the gasses. So it propels the bullet faster, and is expelled from the barrel with the gasses.
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  47. The design submitted to the XM17 selection was rthe APX. The A3 was a proposal to avoid the competition entirely.
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  48. Yeah, "you suck and we hate you" H&K.
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  49.  @rbgerald2469  It depends on the kind of plastic used.
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  50.  @nikolibarastov4487  Had the rifle been selected, Beretta would have manufactured them in its Tennessee plant. But it seems they are out of it now (probably the projected production level of a non-military version it's not enough to interest Beretta, or TV thought Beretta plant was not needed for that level), so yes. Or TV or someone else has to manufacture it.
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