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  #1  
Old 05-14-2017, 05:51 PM
Rider47

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How thick steel plate to stop 22RF rounds?



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I'm building a small range off the porch and I'd like an extra backstop of plate steel. Weight is significant, as I have to haul it into the forest. What's the minimum thickness of std. cold rolled (A36?) plate steel that will stop 22RF rounds, including hyper velocity stingers etc., and not punch through with repeated hits? Thanks.
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  #2  
Old 05-14-2017, 06:40 PM
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This is 1/4" cold rolled, .22's just flatten against it. At 50 yards 9mm barely leave a mark.



Rich
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Old 05-14-2017, 06:41 PM
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Minimum would be 3/16". 1/4" or thicker would be better for hyper velocity ammo for long term.
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Old 05-14-2017, 06:44 PM
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Quarter inch more than sufficient!
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Old 05-14-2017, 07:47 PM
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I have one built for me weights about 50 lbs it will stop a train,

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Old 05-14-2017, 08:05 PM
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I never saw a gun with a train












but some do train with a gun
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Old 05-14-2017, 10:08 PM
supersharp
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If you're using ar500 3/16 inch steel will work on a slight downward angle to deflect all the rounds in to the dirt.
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Old 05-15-2017, 04:51 AM
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Thanks guys. I think I'll go with 3/16" plate angled downward. This range will be for 22RF ONLY. My forested property backs onto another forested property within ~ 100 yards in this direction, although I've never seen anyone near the property line in 6 years. The line of fire at 35 yards is downward into the soil, but I want an extra margin of safety, and might move out to 50 yards if I can build a serious backstop.
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Old 05-15-2017, 06:28 AM
NoSecondBest
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I shot Sportsman's Team challenge for about six or seven years and myself and two fellow team members built a complete set of rifle and handgun targets to practice on for those events. We used 3/16" 28"x48" steel plate for the backers. After two seasons of firing countless thousands of .22lr std. vel. rounds at these targets they bowed into a curve and the deflection in the center of these backers was about four inches! We ended up having to ad two more steel angle iron pcs in the center to stop the bowing. Everyone of those .22 rounds ended up being a small hammer tap to that steel and over time bent it more than you'd ever believe. My advice: get a bit more than you think you'll need.
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Old 05-15-2017, 08:38 AM
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Quote:
Originally Posted by NoSecondBest View Post
Everyone of those .22 rounds ended up being a small hammer tap to that steel and over time bent it more than you'd ever believe.
Made me think of a ball-peen hammered ashtray I made in 7th grade shop class.

IMA, the fine print on a man card says: "If a little is good more is better." Sounds like 1/4" is more better than 3/16".
If the OP is stuck on 3/16th for portability and it begins to bow one might presume he can easily turn it around, albeit if its angled downward should take longer to distort the plate.
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Old 05-15-2017, 09:34 AM
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Quote:
Originally Posted by supersharp View Post
If you're using ar500 3/16 inch steel will work on a slight downward angle to deflect all the rounds in to the dirt.
This is what I use. 1000's of rounds including some 9mm have impacted my 8" round 3/16" AR500 plate; zero dents.
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  #12  
Old 05-15-2017, 09:47 AM
NoSecondBest
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All my targets now days are AR500. No dents from anything.
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Old 05-15-2017, 08:26 PM
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I think this thread may have answered a question that has been bugging me for years. Lots of folks shoot steel targets and don't seem to be worried about ricochet. So, it seems that ricochet is something to be considered but is managed by the angle of the steel target. Correct?

Jim
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Old 05-15-2017, 08:41 PM
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I used 1/4" cold rolled, made a set of silhouettes, chicken pig turkey and ram. ( all official rimfire size) Used them for practice for competition.
Had no issues.
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Old 05-15-2017, 08:46 PM
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Sandbags. Behind your steel. Have you seen those .22 bullet traps? Looks like an open-ended box with a black steel plate pointed 45 degrees down. Plink-katank! Captures your lead. But seriously, if you have an abutting property line that close, I would get a pile of sand, or some tube sand, or some sand bags and just be triple sure. I won't even relate the dumbest thing I ever did getting down into firing position. Resulted in cold sweats. Now, I am sure you are smarter than I am, but the sand bags are for those moments you wish you could take back. Just my two cents.
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