5.7 x 28 cartridge was developed by FN on speculation, trying for a new personal defense weapon for military sales. They had some variety of fully automatic carbine and a pistol. No military contracts yet AFIK. The pistol is sold commercially, for a price. The cartridge fires a 23 grain bullet at 2790 fps. That probably is the velocity out of the longer barreled carbine. It was pushed by FN as being an armor piercing round. The cartridge was developed in the 1980s and I have no idea what it would do against present day body armor.
I have picked up some empty 5.7 brass at a fireing range. It appears to be the 25 ACP round modified and lengthened considerably and necked down to 22 caliber.
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Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
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