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Old 04-16-2015, 05:44 PM
whmachine whmachine is offline
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Default very un-conventional planishing method

Ok, we took a day off and worked on a government project. The material was 16 ga. 1020, and it warped pretty bad after welding. For scale, the widest part is 58"
We decided to see how well the new planishing method would work, and I would like some input on how hard and where it needs stretching to eliminate the oil can...

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Old 04-16-2015, 05:50 PM
whmachine whmachine is offline
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A .22 LR did not phase it, but a 380 full metal jacket seems to raise about a 1/8" dent

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I am wondering how long it will take for it to become straight again

It is portable, so a group project?
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Old 04-16-2015, 05:56 PM
whmachine whmachine is offline
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dont know whether to use a bigger hammer, such as a 12 ga. slug, or 45 wadcutter, or just keep pecking at it over time

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Old 04-16-2015, 06:07 PM
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Kerry Pinkerton Kerry Pinkerton is offline
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LOL. Nice snail bullet trap Mike! I don't think I'd use a bigger 'hammer'. I don't think 16 ga would stop a 45 or a deer slug. I'm surprised it stopped the 380 and don't think it would if it had not been at an angle.

Most the traps I've seen have been made of considerably heavier steel.

Personally, I'd leave it alone. It's going to get dinged in use anyway
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Old 04-16-2015, 06:26 PM
whmachine whmachine is offline
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I did say 16 ga, but it is 12 ga. First mistake all week
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Old 04-16-2015, 07:10 PM
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I would use a technique with a very fast and light blow rate. Something in the order of a semi automatic .17 or .22 planishing hammer.
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Old 04-16-2015, 09:05 PM
whmachine whmachine is offline
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we will try that tomorrow and see how it goes
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Old 04-16-2015, 10:17 PM
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How close is the intended range for the trap? Or is it a 'clearing' barrel design? I like it & I'd use 12 ga bean bag rounds to planish it out.
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