What kind of backstop should I build ?

[Westhunder]

Four hours with a bull dozer, granted I own the bulldozer, but you can rent one for a few dollars or have someone come over while you are cleaning up the property and do your list of to-do’s. It’s covered in grass now and exactly 100 yards from my shop door for load development. I also raised it about 4’ in the back since the picture has been taken and going to plant some trees around the top this winter.

 

[Intell]

Good thread. I've been thinking about welding up a three sided trap style with a sloped back and sides, with a lifting lug on top that I could set down over a tractor bucket of sand and have tabs for plywood in front. I would think the sand and sloped back should keep them inside.
I've had people move in all around me, and I haven't shot at home for a few years. It was nearly a daily occurrence growing up.

 

[wholman]

Buy a tote take the plastic container out of the cage and fill with d

 

[Walt Krafft]

Don't forget noise pollution. If possible buy and use suppressors on your firearms. If the neighbors don't hear it, they won't be bothered.

 

[Gun Nut 1]

At my place I stacked rail road ties horizontally about 6 ft tall, and 2 ties deep. The back row was started on top of some left over scrap wood so that the seams of the RR ties didn't line up. It has been fantastic although the sweet spot, or ideal target height is really starting to get chewed up.

The only problem I have found is that 9mm fmj pistol bullets can come back at the shooter with pretty good energy. While not entirely sure how that happened (did the bullet hit another buried bullet or a hard knot in the wood), but resulted in no more short distance pistol shooting at the home rifle range.

Gun Nut 1

 

[Lynn313]

In gully shooting into back of high pond dam.

 

[Lynn313]

One place I shoot has cross ties, a blade off of a grader turned at an angle to drop the bullets, and then dirt behind grader blade. *Grader blades are very hard

 

[TAJ45]

Piling dirt up? Rule of thumb is 3 to 1 base to height.
However, "angle of repose" is different for different material. Dirt does not cave in reliably but will pack and rounds can "tunnel through".
I used power poles to make 3 sided log cabins and filled the back end with "dirty sand", a local term for a dirt sand mix that is only good for fill.
My 700 yd berm is dbl walled in the front and has 40+ yds behind (I have a neighbor 900 or more yds beyond that).
The 250 is single walled but in line w the 700 yd bunker. 500 yd is going in in a month or two.
If someone can post pix, I have a few of my construction I can supply.