6.8mm remington spc

6.8mm Remington SPC

NDIA Small Arms Symposium Las Vegas

May 11, 2004PRESENTED BY GREG DENNISON

SENIOR RESEARCH ENGINEERREMINGTON ARMS COMPANY, INC

6.8mm Remington SPC

6.8mm Rem SPC – 115 gr Sierra HPBT6.8mm Rem SPC – 115 gr Hornady OTM5.56mm NATO – 77 gr Sierra HPBTMK5.56mm NATO – M855, 62 gr FMJ

6.8mm Remington SPCBrief History Developed by Remington using internal funds 6.8mm Remington SPC cartridge developed to

provide increased lethality and better long range capability than current 5.56mm NATO or 7.62x39 through higher energies

Shell body diameter is larger than 5.56mm NATO but smaller than 7.62x39

Cartridge length same as 5.56mm NATO Modular approach of M16 weapons family allows use

of 6.8mm Rem SPC cartridge with dedicated upper receiver and magazine

6.8mm Remington SPCSpecifications Available with 115 gr Hornady Open-tipped match

(OTM), 115 gr Sierra HPBT Match and 115 gr FMJ Muzzle velocity of 2800 ft/s from a 24” barrel, 2625

ft/s from 16” barrel and 2475 ft/s from a 12” barrel 1 MOA dispersion typical Chamber pressure is 55,000 psi MAP via conformal

transducer 28 rds of 6.8mm Rem SPC – 115 gr OTM weighs

~1.06 lbm 30 rds 5.56mm NATO – 62 gr FMJ weighs ~0.76 lbm 20 rds 7.62mm NATO – 150 gr FMJ weighs ~1.07 lbm

6.8mm Remington SPCPerformance Comparisons – Velocity vs. Range

2900

2625

2750

2365

1000

1200

1400

1600

1800

2000

2200

2400

2600

2800

3000

0 50 100 150 200 250 300 350 400 450 500 550 600

Range (yds)

Ret

aine

d V

eloc

ity (f

t/s)

5.56mm NATO - 77 gr HPBTMK

5.56mm NATO - M855 62 gr FMJ

6.8mm Rem SPC - 115 gr Hornady OTM

7.62mm NATO - 150 gr FMJ

7.62x39 - 123 gr FMJ

6.8mm Remington SPCPerformance Comparisons – Trajectory vs. Range

100 yd zero

-106

-118-122-123

-193-200

-180

-160

-140

-120

-100

-80

-60

-40

-20

0

0 50 100 150 200 250 300 350 400 450 500 550 600

Range (yds)

Tra

ject

ory

(in)





7.62x39 - 123 gr FMJ

6.8mm Remington SPCPerformance Comparisons – Wind Drift vs. Range

10 mph wind at 90*

79

56514946

0

10

20

30

40

50

60

70

80

90

0 50 100 150 200 250 300 350 400 450 500 550 600

Range (yds)

Def

lect

ion

(in)

7.62x39 - 123 gr FMJ





6.8mm Remington SPCPerformance Comparisons – Energy vs. Range

1212

2519

540

933

1759

465

1178

332

636

1527

293

573

1158

2580

500

1000

1500

2000

2500

3000

0

50

100

150

200

250

300

350

400

450

500

550

600

Range (yds)

Ret

aine

d E

nerg

y (ft

-lbf)




7.62x39 - 123 gr FMJ


6.8mm Remington SPCTerminal Performance at 50 yds

6.8mm Rem SPC – 115 gr OTMFrom 16” barrel Barrett Upper, velocity@12’ = 2608 ft/s

5.56 NATO - M855From 18” barrel, velocity@12’ = 3071 ft/s


6.8mm Rem SPC – 115 gr OTMFrom 16” barrel Barrett upper, velocity@12’ = 2608 ft/s

5.56 NATO – 77 gr Sierra HPBTMKFrom 18” barrel, velocity@12’ = 2760 ft/s


6.8mm Rem SPC – 115 gr OTMFrom 16” barrel Barrett Upper, velocity@12’ = 2608 ft/s

5.56 NATO - M855From 18” barrel, velocity@12’ = 3071 ft/s


5.56 NATO – 77 gr Sierra HPBTMKFrom 18” barrel, velocity@12’ = 2760 ft/s

6.8mm Remington SPCTerminal Performance at 25 feet


5.56 NATO - M855From 14” barrel M4, velocity@12’ = 2900 ft/s



5.56 NATO – 77 gr Sierra HPBTMKFrom 14” barrel M4, velocity@12’ = 2613 ft/s




5.56 NATO – 77 gr Sierra HPBTMKFrom 14” barrel M4, velocity@12’ = 2613 ft/s

5.56 NATO - M855From 14” barrel M4, velocity@12’ = 2900 ft/s

6.8mm Remington SPCSummary 6.8mm Rem SPC can be used with existing M16/M4

lowers with dedicated upper receiver and magazines 6.8mm Rem SPC offers higher energy for improved

down range performance versus 5.56mm NATO and 7.62x39

Terminal performance in gelatin has been illustrated at 25 feet with short barreled weapons and at 50 yds with intermediate length barreled weapons 115 gr Hornady OTM provides for greater and more

immediate temporary expansion cavity 6.8mm Rem SPC has been submitted to SAAMI

6.8mm remington spc

Documents