50 Cal. round head stamp
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Old 03-10-2010, 10:12 PM   #1
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Default 50 Cal. round head stamp

Can some one give me the low down on a 50 Cal. silver tip round, Head stamp reads L C 6 8 . Nam Vets should know this one. Wills in da swamp in La. One Shot One Kill. Have Gun Will Travel. Greater love hath no man than this, That a man lay down his life for his friends. J. C.

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Old 03-10-2010, 10:18 PM   #2
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From .50 CALIBER AMMO

Types of U.S. .50 cal. Cartridges

This listing of .50 cal. cartridges includes most of the types used by the U.S. military:

Cartridge, Caliber .50, Ball, High Pressure Test, M1
Cartridge, Caliber .50, Blank, M1 (no bullet, crimped)
Cartridge, Caliber .50, Incendiary, M1 (blue tip)
Cartridge, Caliber .50, Tracer, M1 (red, maroon, or orange tip)
Cartridge, Caliber .50, Blank, M1A1 (no bullet, crimped)
Cartridge, Caliber .50, Ball, M2
Cartridge, Caliber .50, Ball, Armor Piercing, M2 (black tip)
Cartridge, Dummy, Caliber .50, M2 (holes in case)
Cartridge, Caliber .50, Ball, Armor Piercing Incendiary, M8 (aluminum tip)
Cartridge, Caliber .50, Tracer M10 (red, maroon, or orange tip)
Cartridge, Caliber .50, Tracer; M17 (red, maroon, or orange tip)
Cartridge, Caliber .50, Ball, Armor Piercing Incendiary-Tracer, M20 (red ring/aluminum tip)
Cartridge, Caliber .50, Incendiary, M23 (blue tip)
Cartridge, Caliber .50, Ball, M33
Cartridge, Caliber .50, Ball, Spotter-Tracer, M48A1
Cartridge, Caliber .50, Ball, Spotter-Tracer, M48A2
Cartridge, Caliber .50, Ball, Plastic Practice, M858
Cartridge, Caliber .50, Tracer, Plastic Practice, M860
Cartridge, Caliber .50, Saboted Light Armor Penetrator (SLAP), M903 (plastic sleeve on projectile)
Cartridge, Caliber .50, Saboted Light Armor Penetrator-Tracer (SLAP-T), M962
Cartridge, Caliber .50, Ball, Practice, T249E2
Cartridge, Caliber .50, Ball, High Pressure Test, T251
Cartridge, Caliber .50: Armor Piercing Incendiary (API), MK 211 MOD 0

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Old 03-10-2010, 10:30 PM   #3
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Head stamp LC 68 IIRC, is a 50 cal spotter-tracer, M48A1 that is fired from a M8C Spotting rifle mounted on top of a 106mm recoiless BAT cannon.

It is smaller than the 50 BMG and matches the trajectory of the BAT to target impact. The bullet has a primer in the tip to ignite a smoke spotter on impact and a tracer cup in the rear to produce a tracer out to 1500 yds.

Found it!



I guess the silver tip is the primer for the smoke.

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Old 03-10-2010, 11:55 PM   #4
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lake city

1968

api

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Old 03-11-2010, 02:06 AM   #5
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As the man just said, Lake City ammo plant, 1968 Armor Piercing Incendiary Tracer (the GOOD stuff!)


There were .50 cal spotter/tracer rounds made with same headstamp, but those will have the red/yellow tip markings (do not drop those- bad ju-ju- the "smoke" is a bit of white phsphorus under that seal)

US Military headstamps do not indicate caiber/type, but plant of manufacture and year.

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Old 03-11-2010, 04:00 AM   #6
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Default 50 Cal

Thanks guys. All I need now is to build a rifle around it. Wills in da swamp in La. One Shot One Kill. Hell evan the Worms gotta eat.

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Old 04-15-2011, 02:59 PM   #7
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Quote:
Originally Posted by canebrake View Post
Head stamp LC 68 IIRC, is a 50 cal spotter-tracer, M48A1 that is fired from a M8C Spotting rifle mounted on top of a 106mm recoiless BAT cannon.

It is smaller than the 50 BMG and matches the trajectory of the BAT to target impact. The bullet has a primer in the tip to ignite a smoke spotter on impact and a tracer cup in the rear to produce a tracer out to 1500 yds.

Found it!



I guess the silver tip is the primer for the smoke.
Hi. I have joined the forum today, and I live in the U.K. I recently purchased a 50 cal tracer, exactly like the one on the extreme right of the photo, all our ordnance has the arrow on it if used by the Forces. The following is stamped on the bottom of mine, can anyone I.D. it for me please.There is no arrow on mine.
127M48A1 SB 75....
Many thanks.

Jungleman
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Old 04-15-2011, 06:03 PM   #8
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Jungleman- welcome to the forum- When you have a free moment, stop over at the intro section, and say hello.

As we discussed earlier, the .50 cal spotter/tracer round is shorter than the .50 Browning Machine Gun round, and has unique color markings on the bullet. The M48A1 designation is that of the spotter rifle on the 106mm recoiless. It is a stockless barrel and action mounted above the main gun tube. Yours may be Spanish- SB for Santa Barbara ammo plant in 1975. and I THINK 12.7mm is the metric equivalent of the bullet diameter.

Here is the cross section of one: Cartridge of the Month

As already mentioned, treat these gently. The marker portion of the bullet IS shock sensitive, and is intended to go BANG on impact. The trajectory of this shortened cartridge is the same as that of a 106mm anti-tank shell- you walked the spotter rounds onto target- when they hit, you fired the 16 pound main projectile.

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Old 02-03-2013, 04:02 PM   #9
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Lakecity 68

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