Cardboard and Clays for me. My bro has full size silhouette metal targets that take up to the 50 BMG.
Personally I wouldn't use metal for fear of ricochet. I'd like a material to absorb the shoot. A friend of mine uses a few old railway ties stacked on top of each other with a dirt back support. Good for everything from dove shoot to slugs. If you can't get railway ties, some 6x6 or larger posts stacked would be decent for a few hundred rounds depending on what you're throwing at it. Pressure treated if your making a more permanent. Better yet, a stack or double stack of timbers would do the trick. Maybe some replaceable plywood on the face to make it easier to mount a target. Personally I just stick print at home target (search free targets) on a large cardboard box as long as I have a dirt mound backstop. I'm usually in a gravel pit. I just recycle or burn the remains. This method is real portable
scrap plywood with nails/screws in it to hang clay pigeons from if you want stationary targets. Clay thrower for moving fun. I don't do metal at shotgun ranges (40yds and in). Too much chance for ricochet. And here ya go 3/4" for .50cal http://www.shootsteel.com/50-bmg-target-15-round/ Get your wallet ready to be emptied!!!! BTW, any metal you are shooting at should be ar500 if you want it to last.
People got to know how to set them up. Set at a angle going back to ground on floating mount. Now I did have a roller one time at my feet from a tree with a .38.
bro's bullpup 50 being shot at the metal target by his friend. Was looking for target to show. But it is only in the video.
Or Engineering Paper, big roll stuff so you can study it and file it if you want. Best thing to do for patterning is get a 70/30 O/U. Then you can always see the target
No surgery here, strain on my trapezius that resulted in it being locked tight for over a week now, just started loosening up and I'm finally going back to work tomorrow.
