Categories All About Guns Ammo Biggest calibers in the world | Norma factory shooting range | .505 Gibbs and more Post author By Grumpy Post date June 2, 2023 No Comments on Biggest calibers in the world | Norma factory shooting range | .505 Gibbs and more ← 3.7cm PAK – Germany’s Basic WWII Antitank Gun → 25-06 Rem. Browning Bolt Rifle (BBR). Old School Best for the West. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ