I recently acquired a neat 43 Walther P38 and I'm itching to shoot a couple magazines through it just because. I've read all the precautions, but still tempted to get 16 rounds in. A. Is it a terrible idea with factory ammunition? And B. Is it a terrible idea? I bought it to sit and paw over mostly but will two magazines break my slide? If I knew about the brittleness of them beforehand I likely wouldn't have bought it but I've always wanted one and I don't want to say I've never fired it at all. Advice?