hello all, im fairly new to the forum (mostly lurking and searching and not much posting) and i recently picked up a good bit of the above mentioned ammo. i am not sure if this is the correct forum for this question so if not please feel free to let me know. trouble is i can't find much data on this ammo. on buds gun shop they list the fps at 3250fps, but that seems rather high and more in line with the xm193 ammo (5.56nato). on another site http://throwinglead.com/index.php?page=ballistics_terminal there is a paragraph that reports this ammo at 2700fps which seems more likely.
"This profile is the M80 7.62mm NATO cartridge, a 149gr FMJ boat tailed bullet at 2730 f/s. This is a classic FMJ military bullet profile for modern non-fragmenting/non-expanding spitzer bullets. The bullet ends up base first at a penetration of 25.6″. The permanent cavity is flat in cross-section. Note the long neck before the bullet starts to tumble, but in this case at only 2700 f/s and with its heavy jacket the bullet doesn’t fragment. Interestingly, if this bullet is driven at 3000 f/s it fragments and behaves just like the M855 5.56mm bullet. Have you noticed the trend for FMJ spitzer flat base/spitzer BT bullets that do not fragment to end up base first?"
if anyone has any reliable info on this ammo i would appreciate it.
"This profile is the M80 7.62mm NATO cartridge, a 149gr FMJ boat tailed bullet at 2730 f/s. This is a classic FMJ military bullet profile for modern non-fragmenting/non-expanding spitzer bullets. The bullet ends up base first at a penetration of 25.6″. The permanent cavity is flat in cross-section. Note the long neck before the bullet starts to tumble, but in this case at only 2700 f/s and with its heavy jacket the bullet doesn’t fragment. Interestingly, if this bullet is driven at 3000 f/s it fragments and behaves just like the M855 5.56mm bullet. Have you noticed the trend for FMJ spitzer flat base/spitzer BT bullets that do not fragment to end up base first?"
if anyone has any reliable info on this ammo i would appreciate it.
