Here is a thread dedicated to 10 mm guns and ammo where people can discuss 10mm guns , ammo, post pictures and reviews about caliber. Please limit the discussion to the topic.
My experience is that Sig 10mm range ammo is hot for range ammo.Sellier & Bellot is good if you can find it but most factory 10mm ammo is watered down a bit but still goes boom. For the real deal, buy some Underwood Ammo and put a smile on your face. Also, I’ve heard decent reviews on the Sig 10mm ammo but haven’t personally shot any.