Range Burlington is an indoor, semi-heated, 10-port shooting range, with a maximum distance of 50 yards. The backstop is rated for all legal ammunition and calibers; including pistol, rifle and shotgun (slugs only, not 00 shot). However tracer, incendiary, and armor-piercing ammunition (e.g. hardened steel core) is not allowed. Mild steel core (most surplus) is ok. The backstop is rated for all bullet types up to .50 cal, including shotgun slugs and .76 cal patched round musket ball. Rumor has it that the last .50BMG fired there blew out several of the lights from the concussion and was quite noisy.