Mm TCU

Another cartridge developed by Wes Ugalde and chambered originally by Thompson/Center Arms.

This cartridge is based on the .223 Remington case necked up to 6.5mm.

All the loads developed in our pressure barrel proved to be quite consistent. The 6.5 T/CU should be adequate for small game and varmints at ranges up to 200 yards. There is no SAAMI pressure limit for the 6.5 T/CU. Based on the recommendations of Thompson/ Center, these loads are limited to the same pressures as the .223 Remington cartridge.

6.5mm T/CU

Gun

DOUGLAS

Max Length

1.749"

Barrel Length

14"

Trim Length

1.740"

Primer

CCI 400

OAL Max

2.600"

Case

REM

OAL Min

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

P.S.I.

Length Comment

SRA 85 HP

1680

20.7

2094

1680

23.0

2379

43,600

2.400"

2015

25.2

2268

2015

28.0

2577

50,100

2230

26.6

2218

2230

29.5

2520

47,100

2460

27.0

2238

2460

30.0

2543

47,800

Compressed

2495

25.7

2081

2495

28.5

2365

40,900

Compressed

2520

27.9

2154

2520

31.0

2448

41,300

Compressed

SRA100 HP

1680

19.2

1919

1680

21.3

2181

45,200

2.420"

2015

23.0

2057

2015

25.5

2338

49,200

2230

25.2

2114

2230

28.0

2402

49,500

2460

25.2

2103

2460

28.0

2390

47,400

2495

23.9

1934

2495

26.5

2198

40,300

Compressed

2520

25.2

2035

2520

28.0

2312

41,100

Compressed

SRA120 SP

1680

18.3

1730

1680

20.3

1966

45,900

2.495"

2015

22.1

1907

2015

24.5

2167

48,100

2230

23.4

1923

2230

26.0

2185

48,800

2460

23.9

1918

2460

26.5

2180

48,700

2495

23.4

1888

2495

26.0

2146

49,000

Compressed

2520

25.2

1934

2520

28.0

2198

45,200

Compressed

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

P.S.I.

Length Comment

HDY 140 HPBT

1680

17.1

1578

1680

19.0

1793

43,300

2.550"

2015

20.7

1765

2015

23.0

2006

50,200

2230

22.5

1807

2230

25.0

2053

50,000

2460

23.0

1823

2460

25.5

2072

47,600

2495

21.6

1705

2495

24.0

1937

40,600

Compressed

2520

23.9

1826

2520

26.5

2075

47,400

Compressed

HDY160 RN

1680

18.5

1553

1680

20.5

1765

46,300

2.570"

2015

21.2

1664

2015

23.5

1891

47,100

2230

22.5

1687

2230

25.0

1917

48,400

2460

23.0

1712

2460

25.5

1946

47,100

2495

23.0

1639

2495

25.5

1863

43,100

Compressed

2520

23.9

1718

2520

26.5

1952

48,500

Compressed

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Hunting Mastery Selected Tips

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