{Your answer doesn't explain why blowback isn't operated by the recoil of the cartridge firing and pushing back against the bolt
s I understand it. Blowback is operated by the recoil. And that the weight of the slide and recoil spring is heavy enough to hold the gun in battery until the pressure is lower or the bullet has exited the barrel. Then the recoil of the case blows the slide back.}
OK, It seems there's a problem with terminology. Cartridges DON'T RECOIL. The firearm recoils.
Generally speaking blowback actions have NO LOCKING features. The weight of slide/reciprocating parts, the resistance of a strong recoil spring, and friction are the only things holding the system closed during and after firing.
Recoil operated actions DO HAVE A LOCKED BREECH(again generally since there are so many variations) at the time of firing. Movement of the reciprocating parts initiates unlocking, extraction, and ejection.
s I understand it. Blowback is operated by the recoil. And that the weight of the slide and recoil spring is heavy enough to hold the gun in battery until the pressure is lower or the bullet has exited the barrel. Then the recoil of the case blows the slide back.}
OK, It seems there's a problem with terminology. Cartridges DON'T RECOIL. The firearm recoils.
Generally speaking blowback actions have NO LOCKING features. The weight of slide/reciprocating parts, the resistance of a strong recoil spring, and friction are the only things holding the system closed during and after firing.
Recoil operated actions DO HAVE A LOCKED BREECH(again generally since there are so many variations) at the time of firing. Movement of the reciprocating parts initiates unlocking, extraction, and ejection.