MacTech
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One of the many things we work on at work are scanner-scales, they're the devices in supermarket check out lanes that scan and weigh grocery items.
Some of the older models used thick plexiglas windows, about 1" thick, part of our refurb process is to replace any windows with scratches that compromise scan reliability.
So, basically, I have two 1" thick plexi targets, they're roughly 4x5" in size, I've shot them before, and they basically shrugged off .22LR, it just left a smear, a .22 Mag hollow point left a dimple about the diameter of an un expanded .45 ACP, and 5.56/.223? Well, let's just say I'm still finding pieces from the first one I shot about 6 months ago, those rounds completely demolished it.
So, a little more research is in order, try a few more magnums on one, a FMJ, a lead free, and a ballistic tip, see if I can capture any shock waves inside the plexi...
The second one? That'll be for my S&W 686-1 .357 Mag, I'm thinking starting with a .38 lead wadcutter, then a .38 FMJ, a .38 hollow point, then a soft point .357, and if any remains, a Gold Dot hollow point .357...
No point in trying LR on the plexi, I know it won't be able to damage the window...
So, per my nephew's request, we tried the .38 Spl first...
145 grain full wadcutter left a faint scar and lead smear
155 grain FMJ left a shallow crater
135 grain Gold Dot hollowpoint left a slightly deeper and wider crater
Then the .357;
155 grain left a deep crater
165 grain (IIRC) PMC soft point blew it cleanly in half!
We shot a different location for each shot, the .357 SP was the coup de grace, it decimated the plexi window.
1" thick plexi seems to be able to withstand up to .38 Spl, starts to fail with a .357 HP, and a .357 SP utterly destroys it.
Some of the older models used thick plexiglas windows, about 1" thick, part of our refurb process is to replace any windows with scratches that compromise scan reliability.
So, basically, I have two 1" thick plexi targets, they're roughly 4x5" in size, I've shot them before, and they basically shrugged off .22LR, it just left a smear, a .22 Mag hollow point left a dimple about the diameter of an un expanded .45 ACP, and 5.56/.223? Well, let's just say I'm still finding pieces from the first one I shot about 6 months ago, those rounds completely demolished it.
So, a little more research is in order, try a few more magnums on one, a FMJ, a lead free, and a ballistic tip, see if I can capture any shock waves inside the plexi...
The second one? That'll be for my S&W 686-1 .357 Mag, I'm thinking starting with a .38 lead wadcutter, then a .38 FMJ, a .38 hollow point, then a soft point .357, and if any remains, a Gold Dot hollow point .357...
No point in trying LR on the plexi, I know it won't be able to damage the window...
So, per my nephew's request, we tried the .38 Spl first...
145 grain full wadcutter left a faint scar and lead smear
155 grain FMJ left a shallow crater
135 grain Gold Dot hollowpoint left a slightly deeper and wider crater
Then the .357;
155 grain left a deep crater
165 grain (IIRC) PMC soft point blew it cleanly in half!
We shot a different location for each shot, the .357 SP was the coup de grace, it decimated the plexi window.
1" thick plexi seems to be able to withstand up to .38 Spl, starts to fail with a .357 HP, and a .357 SP utterly destroys it.