Photo shows a white tip low recoil XM256 cartridge (without NATO stamp) FA 66 cartridge. The bullet is 82 grs from the M198 Duplex cartridge with a velocity of 3200 fps. This was designed to control full auto fire in the M14. There was even a modified M14 stock to be used with this cartridge for small statured troops (Viet Nam). Never came about with the introduction of the M16.

Second cartridge is WCC 58 National Match with 200 gr match bullel, had to be loaded by hand into chamber as it was too long for the magazine. Click image for larger version

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