It seems that someone wrote a masters thesis on the subject: http://scholarcommons.usf.edu/cgi/viewcontent.cgi?article=4759&context=etd
The bottom line being that 7.62 rounds penetrate about 10 inches into sand, so I'll build traps with at least 15 inches of sand. On Mon, Dec 11, 2017 at 8:37 AM, Curt Raymond via Mercedes < mercedes@okiebenz.com> wrote: > Nope I saw it... > Maybe park a dumpster full of sand behind it? Dig a hole and shoot from an > elevated position? > -Curt > > > On Monday, December 11, 2017, 1:46:22 AM EST, fmiser via Mercedes < > mercedes@okiebenz.com> wrote: > > > > > OK Don wrote: > > > > > > > > I'm thinking of building a trap consisting of several (5 to > > > > 7) sheets of 3/4" plywood, separated by 2X4's on the long > > > > edge, with the space between the sheets filled with sand. > > > > Curt wrote: > > > > > > Back the "trap" with about 100 cubic yards of sand and you'll > > > have something. FMJ wants to go and keep going... > > > Mitch wrote: > > > > I'm with Curt. > > I've got .177 air rifles that will punch a nice clean hole > > through 3/4" ply with 7 grain soft lead wadcutter pellets at > > 1000fps or so. 160gr FMJ will sail through dozens of sheets of > > ply at 2700 fps. > > I think you both missed his plan to put 3.5 inches of sand between > each sheet of plywood. > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > -- OK Don *“Travel is fatal to prejudice, bigotry and narrow-mindedness, and many of our people need it sorely on these accounts.”* – Mark Twain "There are three kinds of men: The ones that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves." WILL ROGERS, *The Manly Wisdom of Will Rogers* 2013 F150, 18 mpg 2017 Subaru Legacy, 30 mpg 1957 C182A, 12 mpg - but at 150 mph! _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
