Just published a big collection of detailed cartridge replicas, from .22 LR to .470 Nitro Express. All modeled to official CIP specs for accurate dimensions, not eyeballed from photos. 100% inert solid plastic display models. Tip: For display, use PLA Metal/Silk filaments. For snap caps, stick to PETG or plain PLA, as specialty filaments crack fast under firing pin strikes. Which calibers should I add next?