Just learned something new!

[Deere Dude]

I want to build a backstop, and I like the 2x4 idea. Any idea what would hold up for 9mm and 45 cal?

 

[Treemonkey1000]

I want to build a backstop, and I like the 2x4 idea. Any idea what would hold up for 9mm and 45 cal?

Don't take this wrong but tractor and car thieves, burglars would make good backstops.. Or a bunch of my ex wifes muffins would stop them rounds.....

 

[RJD2516]

Distance will stop a Barrett .50 cal. I think it is like 2.5 miles. What stops me from owning one is my wallet.

 

[Soundguy]

when thinking backstops.. oversize by about 1000%

be safe!

 

[k0ua]

My mother-in-laws Oatmeal cookies would stop a 9MM or .45ACP easy
And I mean just one... T-1 steel aint got nothing on those things.

James K0UA

 

[k0ua]

I want to build a backstop, and I like the 2x4 idea. Any idea what would hold up for 9mm and 45 cal?

On a serious note: Dirt works about the best. or a Bullet trap, which is high dollar.. You can use something like an big elm stump, and it will last for awhile. but finished pine will shoot out really quick. We used to have a "rattle battle" to race 2 guys each with a 4x4 piece of wood to shoot in two at about 7 yards, and one would usually win with a broken 4x4 in about a minute or so and maybe 50 rounds. or so out of a .45ACP. Fun to watch, but hard on wood.

James K0UA

 

[Fpaulk22]

My mother-in-laws Oatmeal cookies would stop a 9MM or .45ACP easy
And I mean just one... T-1 steel aint got nothing on those things.

James K0UA

:laughing::laughing:

 

[bearcreek paul]

A good back stop for pistols 2 2x10 with 3/4 ply on front and a stall mat 3/4 ply for the back fill it with sand. The mat saves all your sand from leaking out. The only problem is it does wear out.

 

[tinner666]

Some buds and I would 'find' ammo we didn't have to account for while doing guard duty in Europe. Those 5.56 would slip right through 5-6 sand bags and leave a nice 5.56 hole in the wood behind them. The wood was part of some bunkers in a hillside, so not too sure how far they went into that.

I like the idea of using burglars and other volunteers for backstops. Don't have to worry about innocent people, (humans), getting hurt.

 

[bcp]

Use small gravel, not sand, or dirt, but no rocks large enough to cause a ricochet.

Gravel mixed with asphalt was one of the better armors used on ships in WWII.

From:
Plastic armour - Wikipedia, the free encyclopedia

Plastic armour (also known as plastic protection) was a type of vehicle armour originally developed for merchant ships by Edward Terrell of the British Admiralty in 1940. It essentially consisted of small, evenly sized rock or stones in a matrix of bitumen. It was typically applied as a casting in situ to existing ship structure in a layer of about two inches thick or formed in equally thick sections on a half inch thick steelplate for mounting as gun shields and similar.

It replaced the use of concrete slabs which although expected to provide protection were prone to cracking and breaking up when struck by armour piercing bullets. Plastic armour was highly effective at stopping armour piercing bullets because the very hard particles would deflect the bullet which would then lodge between plastic armour and the steel backing plate. Plastic armour could be applied by pouring it into a cavity formed by the steel backing plate and a temporary wooden form.

 

[Don87]

Some buds and I would 'find' ammo we didn't have to account for while doing guard duty in Europe. Those 5.56 would slip right through 5-6 sand bags and leave a nice 5.56 hole in the wood behind them. The wood was part of some bunkers in a hillside, so not too sure how far they went into that.

I like the idea of using burglars and other volunteers for backstops. Don't have to worry about innocent people, (humans), getting hurt.

I liked the wording.

 

[greasemonkeyok]

Good info BCP, thanks. Could you use pea gravel and roofing tar as a substitute?

 

[Gary Fowler]

I would think roofing tar would work just as well as asphalt as they are very similar. Just need a plastic binder to hold the rocks together. I wonder if you need crushed aggregate or round pea gravel.
That mix could be repaired easily with a weed burner also, just lay flat and heat to remelt the tar.

 

[Danno1]

.


I do know that a 50 cal black powder round will go through a 5 gal bucket of frozen roofing tar. It couldn't quite exit; it left a round dent on the farside.


.

 

[bcp]

The gravel does all the work. The tar/asphalt holds it in place.

I would rather use loose gravel in a container for a target shooting backstop. You hope to have all your shots concentrated in a very small area. The tar mix won't refill the cavities your bullets will make. Loose gravel will.

Bruce

 

[pat32rf]

I've always found that 3/8 steel plate mounted at about 30degree would deflect the bullets down into a nice sand box. Most potent that I tried (in basement) was 30-06 at 30', no problems as long as I had good ear protection.

 

[rsewill]

I've always found that 3/8 steel plate mounted at about 30degree would deflect the bullets down into a nice sand box. Most potent that I tried (in basement) was 30-06 at 30', no problems as long as I had good ear protection.

We did this but at a 45 degree angle and a quarter inch plate.

 

[Soundguy]

i don't trust it.. I have a shooting target with swinging target plates along the bar.. you shoot them and they spin. It's IMHO.. for sub caliber or pistol.. but we had it out a while back. at 40yds I hit one of the spinner plates with my 30-06 180gr .. plates are 1/2" plate steel.

it went about 7/16 the waythru, left a thin membrane bubble on the back side

I stopped shooting it with a rifle at that point..