You’d want a stronger girder than they used.

Ohhhhhhh damn. Have I been wrongly hating on tape capguns for 40-odd years?

The experience I had was that the hammer wasn’t consistently firing the caps. Perhaps I just had a couple of bad guns? Either way, nothing like those reliability issues with ring caps.

I know what they are, spent pocket money on them, and loathe them. Ring caps are far more reliable (albeit more expensive; always a topic of debate when said pocket money was $3 / month).