I have never seen one of the primers for the Austrian pistol but it appears to have been a soft tube with fulminate inside it. The spring force to open and close the primer retainer firing pin thing is substantial. I can imagine that if the firing pin was fouled or stuck in the fired position, closing it would discharge the pistol.
The Aston may have seen service in the CW but were certainly obsolete by that time.
The Aston may have seen service in the CW but were certainly obsolete by that time.