Portable Backstop.
Mine consists of a stainless steel roasting tin, 2 rectangles of tin cut from cheap baking trays, 13 nuts & bolts (all from Wilkinsons), & all the lead from used pellets I can find.
Take the baking trays & cut the raised edges off so the remaining rectangles of tin fit inside the roasting tin. (A normal roasting tin would be better, but I could only get a stainless one at the time).
When the tin has bin placed in the roasting tin, mark up five holes, one in each corner & one in the middle. Drill these holes & bolt the pieces of tin into the roasting tin.
Now fit the angled brackets to the ends of the roasting tin by drilling holes & bolting them to the tin so the one side of the bracket is fitted so you can screw or bolt a piece of wood to the back of the roasting tin.
Before you fit a piece of wood, say, chip board with a margin of 3 or 4 inches around the edge of the roasting tin, get all the used pellets that you can & melt them down in the roasting tin. This will keep the sound down, BUT BE VERY CAREFUL WHEN MELTING DOWN LEAD. DO IT IN A WELL VENTILATED AREA & BE VERY CAREFUL WHEN IT GETS ALL RUNNY!
Chris.
Far too many rifles & pistols to mention here.