Million dollar fun idea: suppressed 9 shot Webley in 5.7mm >Cylinder is designed moonclips so ejector throws 5.7mm out without problems>8mm something cartridge diameter allows for 8-9 shots >Top break means you can completely close off the cylinder gaps with an improved design, hence a suppressor can be mounted
>>65393244ok build it
>>65393244A cnc and lathe is much less than a millio dollars, fusion is free, make it happen
>>65393244>Top break means you can completely close off the cylinder gapsBarrel and cylinder dont stop being two pieces op
>>65393535It's just an engineering problem. Somehow your car doesn't let gas escape from cylinders
>>65393741>why haven't we solved interstellar travel?>"It's just an engineering problem"LolLmao, even
>>65393849Pretty sure making a gun has been done before
>>65393741Bro, the cylinders of a cat are housed internally. Cylinder and Barrel gap exist due to the cylinder need to "revolve" to position the next round.You want a "gapless" design, you will a nagant type mechanism.But good luck making it top break.https://youtu.be/aP13NZ4Yu48?is=BfLs3F5FvFiX-V1e
>>65393535>>65393849It does work though. If the cylinder doesn't have to swing open you can completely seal off the front part, brass won't let off enough gas because it expands
>>65393244If you do a top break, it should actually be conceivably easier to maintain extremely tight cylinder gap tolerances, because the cylinder no longer has to swing out on a crane, only rotate.So if your cylinder gap is extremely tight, you should be able to minimize gas escape and thus reduce noise a significant amount, provided you've also put a suppressor on the barrel.It's not going to be anywhere near as quiet as a standard sealed chamber, but might be tolerable to the open ear.
>>65394121I think you could machine a cylinder to have those extension from the chambers instead of the casings. wouldn't seal up as tight as expanded brass(unless you spent korth amounts of money on each gun) but would eliminate the foreskin requirement
>>653932445.7x28mm is kind of dogshit for suppressing because at most you're just reigning in the muzzleblast, the projectile is still way above the sound barrier.It's also a dogshit choice for a revolver, since high pressured bottle-necked cartridges are very prone to setting back and binding up the action.>>65393741>Somehow your car doesn't let gas escape from cylindersBecause they aren't out in the fucking open?>>65393960People have made SCHV revolvers before, and bottle-necked cartridges cause a lot of problems on that point. It's why the Smith & Wesson Model 53 was a flop.>>65394121He could make it a pepperbox, if he didn't mind it being clunky, shitty, and being difficult to get consistent accuracy with.
>>65395857>Because they aren't out in the fucking open?yeah just seal the cylinder with a gasket
>>65394345You can't do that with conventional 5.7x28mm ammunition, you need a cartridge case which actually does this, which is why the ammunition for the Russian Nagant revolver, 7.62x38mmRG, looks like it does.>>65395641At that point, you might as well put replaceable rubber gaskets around the mouths of the chambers. You're not getting around case setback that way though.
If you want a high pressured bottle-necked cartridge in a revolver, this approach is pretty much your only solution, the .357-44 Bobcat MagnumThis is .44 Magnum necked down to .357 caliber, with a short .44 caliber chamber, with a normal .357 caliber barrel, and the case then has a spacer sleeve over its neck and shoulder to prevent it from setting back and binding. This works, but the rings/sleeves need to be epoxied onto the case, and they wear out from use.You will also want to stick to 180gr bullets or heavier, as otherwise you'll see the same kind of top-strap erosion issues as when people loaded light bullets for muh velocity with .357 Maximum. Though, for a hypothetical revolver which would use a sealing action and uncircumcised cases, that should not be a problem.
For what OP wants to do, he needs a special version of 5.7mm which has the extended neck and also probably a partially extended spacer sleeve glued onto it to cover its neck.It will still be a very loud gun, however.
A pdw based off the keltech PR-5.7
