If you're in Colorado or willing to travel you might want to make sure you have May 14th, 15th & 16th free. That's when the Rocky Mountain Fifty Caliber Shooters Association is holding their machine gun shoot. It'll take place in Cheyenee Wells, Colorado which is about 185 miles east of Denver.
Now the cool thing is you not only get to watch other people sending vast amounts of lead & copper downrange, but most people on the firing line will let you shoot their firearms for a small price. This may not be exact but you're looking at $10 for 30 rounds of a 9mm subgun, $5 for 3 rounds of .50 BMG (either through a rifle or a Browning M2) & if I recall the 20mm (Soluthurn or Lahti) was around $5 per round. Thye also have mortars that shoot bowling balls, a musket that shoots bowling pins (as in the bowling pin is the projectile - not the target) & last year a fellow brought out his 25mm & 37.5mm (the show off - wonder how much factory ammo costs for him?).
Plus military vehicles & people dressed up in varous period uniforms.
Did I mention the reactionary targets (dynamite, propane cylinders & a gas filled wrecked car) & the Saturday night tracer shoot (imagine a horizontal 4th of July)?
If you need more encouragement click here for pics from previous shoots.
& holler at me if you plan on attending.