Cogswell so called assisted openers [Boss also comes in this category] are not actually assisted openers at all . I do not know why they are regarded as such .What happens is that until the gun is fired and the ejectors are held back into position till they trip, that being permanently spring loaded they bear on the face of the action pushing it open . So it is only an "assisted opener" when the gun is in its cocked unfired state .
This is correct. A true self opener 'self opens' both when the locks are cocked and after they have been fired. There are a number of so called 'self openers' that only actually 'self open' when the locks have not been fired - and these are called 'assisted openers'.
Boss did in fact make (a very small number) of true self openers, but the vast majority are 'assisted openers.
Such guns do not 'self open' once the locks have been fired.
