Remington Ultra

The .300 Remington Ultra Mag is another in the long line of wildcats brought to market by Remington.

To achieve ultimate performance, Remington has maximized case volume by using a necked down .404 Jeffery case which provides about 10% more volume than other .300 Magnum cartridges. This extra volume allows for a higher propellant charge weight which results in higher velocities.

Most of these loads are considered maximum by the technical staff at Accurate Arms. The only exceptions are the lead bullets and the single light load with XMP 5744 that we listed with each bullet type. The maximum loads should never be exceeded.

The SAAMI Maximum Average Pressure for the .300 Remington Ultra Mag is 65,000 PSI.

.300 REMINGTON ULTRA MAG

Gun

Test Barrel

Max Length

2.850"

Barrel Length

24"

Trim Length

2.830"

Primer

REM 91/2 M

OAL Max

3.600"

Case

REM

OAL Min

3.450"

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

P.S.I.

Length

Comment

165 (L) RNGC

5744

---

---

5744

25.0

1636

12,800

3.380"

Light Load

5744

---

---

5744

35.0

2090

21,900

Lyman

168 (L) RNGC

5744

---

---

5744

25.0

1540

12,000

3.475"

Light Load

Lyman

180 (L) RNGC

5744

---

---

5744

25.0

1604

13,800

3.400"

Light Load

5744

---

---

5744

38.0

2161

26,000

Lyman

NOS 125 BT

5744

---

---

5744

45.0

2660

28,400

3.600"

Light Load

5744

60.3

3148

5744

67.0

3578

62,700

4064

74.7

3218

4064

83.0

3657

61,800

2700

74.7

3197

2700

83.0

3633

61,800

4350

85.5

3306

4350

95.0

3757

61,800

3100

88.6

3272

3100

98.5

3719

61,300

Compressed

8700

103.9

3031

8700

115.5

3445

52,400

Compressed

.534 13.56mm

.534

.525

13.56mm

13.34mm

y

s*.

2.3873 (60.637mm)

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

P.S.I.

Length

Comment

BAR 150 X

5744

...

...

5744

40.0

2340

29,000

3.600"

Light Load

5744

55.8

2830

5744

62.0

3216

62,400

4064

66.6

2867

4064

74.0

3258

61,100

2700

67.5

2860

2700

75.0

3250

60,400

4350

76.5

2986

4350

85.0

3394

61,000

3100

80.1

2974

3100

89.0

3380

58,900

Compressed

8700

102.6

3041

8700

114.0

3456

61,000

Compressed

NOS 165 BT

5744

...

...

5744

39.0

2215

28,000

3.600"

Light Load

5744

54.9

2720

5744

61.0

3092

61,700

4064

66.6

2742

4064

74.0

3117

61,300

2700

64.8

2729

2700

72.0

3102

61,700

4350

74.7

2818

4350

83.0

3203

58,300

3100

81.0

2889

3100

90.0

3284

59,600

Compressed

8700

101.7

2893

8700

113.0

3288

56,600

Compressed

SPR 165 GRSL

5744

...

...

5744

40.0

2277

31,000

3.550"

Light Load

5744

54.9

2694

5744

61.0

3062

60,900

4064

63.9

2714

4064

71.0

3085

61,300

2700

65.7

2728

2700

73.0

3100

60,400

4350

72.4

2842

4350

80.5

3230

62,400

3100

79.2

2893

3100

88.0

3288

61,400

Compressed

8700

101.7

2964

8700

113.0

3369

60,700

Compressed

SWF 165 AF

5744

...

...

5744

38.0

2184

27,100

3.550"

Light Load

5744

54.0

2678

5744

60.0

3044

58,600

4064

63.9

2721

4064

71.0

3093

61,800

2700

67.5

2761

2700

75.0

3138

60,900

4350

76.5

2882

4350

85.0

3276

61,100

3100

82.8

2953

3100

92.0

3356

61,800

8700

101.7

2848

8700

113.0

3237

51,500

Compressed

HDY 168 HPBT NM

5744

...

...

5744

38.0

2185

26,900

3.600"

Light Load

5744

54.9

2703

5744

61.0

3072

60,800

4064

68.4

2777

4064

76.0

3156

62,600

2700

66.6

2746

2700

74.0

3121

61,900

4350

75.6

2883

4350

84.0

3277

63,000

3100

81.9

2926

3100

91.0

3326

62,100

8700

100.8

2901

8700

112.0

3297

55,400

Compressed

HDY180 SPBT

5744

...

...

5744

38.0

2151

28,500

3.600"

Light Load

5744

53.1

2584

5744

59.0

2937

59,100

4064

63.9

2654

4064

71.0

3016

63,500

2700

66.6

2671

2700

74.0

3036

61,200

4350

72.9

2760

4350

81.0

3137

61,500

3100

80.1

2865

3100

89.0

3256

63,700

8700

101.7

2863

8700

113.0

3254

57,000

Compressed

REM 180 SPCL

5744

...

...

5744

47.0

2454

39,200

3.550"

Light Load

5744

54.0

2588

5744

60.0

2942

61,900

4064

66.6

2645

4064

74.0

3006

62,100

2700

67.0

2662

2700

74.5

3026

62,200

4350

76.5

2792

4350

85.0

3173

63,400

3100

81.0

2833

3100

90.0

3220

63,500

Compressed

8700

101.7

2833

8700

113.0

3220

56,400

Compressed

.300 REMINGTON ULTRA MAG (continued)_

SPR 180 GRSL 5744 5744 38.0 2134 30,200 3.550" Light Load

5744 52.2 2536 5744 58.0 2882 59,300

4064 64.3 2618 4064 71.5 2976 62,700

2700 64.3 2618 2700 71.5 2975 62,000

4350 72.0 2732 4350 80.0 3105 62,800

3100 78.3 2800 3100 87.0 3182 62,700 Compressed

8700 101.7 2907 8700 113.0 3304 62,500 Compressed

SWF 180 AF 5744 5744 38.0 2111 28,300 3.550" Light Load

5744 53.1 2586 5744 59.0 2939 59,900

4064 61.6 2582 4064 68.5 2935 63,600

2700 66.6 2642 2700 74.0 3003 61,600

4350 73.8 2741 4350 82.0 3115 61,600

3100 80.1 2820 3100 89.0 3205 62,300

8700 100.8 2806 8700 112.0 3189 56,100 Compressed

NOS 180 BT 5744 5744 38.0 2152 29,500 3.600" Light Load

5744 52.2 2554 5744 58.0 2903 59,800

4064 64.8 2607 4064 72.0 2963 60,800

2700 66.6 2642 2700 74.0 3003 61,300

4350 72.0 2707 4350 80.0 3077 60,900

3100 79.9 2817 3100 88.5 3202 62,700 Compressed

8700 101.7 2860 8700 113.0 3250 59,000 Compressed

NOS 180 PART 5744 5744 38.0 2118 28,500 3.600" Light Load

5744 52.2 2544 5744 58.0 2892 58,300

4064 65.7 2623 4064 73.0 2981 60,300

2700 67.0 2646 2700 74.5 3007 60,500

4350 73.8 2752 4350 82.0 3128 61,300

3100 80.1 2826 3100 89.0 3212 62,900 Compressed

8700 101.7 2924 8700 113.0 3323 62,400 Compressed

BAR 180 X 5744 5744 38.0 2063 29,700 3.600" Light Load

5744 52.2 2530 5744 58.0 2876 59,100

4064 63.9 2569 4064 71.0 2920 62,200

2700 62.5 2537 2700 69.5 2883 60,300

4350 67.0 2585 4350 74.5 2938 57,900

3100 77.4 2750 3100 86.0 3126 60,600

8700 101.7 2891 8700 113.0 3286 62,000 Compressed

SPR 200 SP 5744 5744 38.0 2014 33,100 3.600" Light Load

5744 50.4 2366 5744 56.0 2689 59,400

4064 57.7 2341 4064 63.0 2661 60,700

2700 58.5 2387 2700 65.0 2713 61,000

4350 62.1 2453 4350 69.0 2788 63,300

3100 72.4 2584 3100 80.5 2937 61,200

8700 95.4 2744 8700 106.0 3119 62,600 Compressed

SPR 200 GRSL 5744 5744 38.0 2043 32,000 3.550" Light Load

5744 50.4 2439 5744 56.0 2772 62,000

4064 58.5 2390 4064 65.0 2716 60,000

2700 60.3 2412 2700 67.0 2742 59,000

4350 65.7 2518 4350 73.0 2862 60,800

3100 72.9 2606 3100 81.0 2962 60,600

8700 99.0 2775 8700 110.0 3154 62,100 Compressed

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

P.S.I.

Length Comment

SWF 200 AF

5744

___

...

5744

38.0

2024

29,900

3.550" Light Load

5744

50.4

2403

5744

56.0

2731

57,700

4064

57.6

2381

4064

64.0

2706

60,000

2700

65.7

2530

2700

73.0

2876

61,800

4350

71.1

2585

4350

79.0

2938

62,300

3100

75.4

2655

3100

86.0

3018

60,600

8700

99.9

2741

8700

111.0

3115

59,200

Compressed

SRA 220 RN

5744

...

...

5744

38.0

1921

31,800

3.570" Light Load

5744

51.3

2301

5744

57.0

2615

61,400

4064

58.5

2277

4064

65.0

2588

62,800

2700

60.3

2319

2700

67.0

2636

62,500

4350

62.1

2327

4350

69.0

2645

60,000

3100

74.7

2535

3100

83.0

2881

63,800

8700

95.4

2613

8700

106.0

2970

60,200

Compressed

.300 WINCHESTER MAGNUM

Introduced in 1963 for Winchester's Model 70 bolt action rifle, the .300 Winchester Magnum embodied what are now considered to be the most efficient cartridge case design features — a sharp shoulder angle and a short neck. The .300 Winchester Magnum has become the most popular .30 caliber magnum in the U.S. market. It is a favorite for NRA 1,000-yard matches. When loading the .300 Winchester Magnum for competitive long-range shooting, the various "match" bullets must be loaded to exceed the SAAMI recommended overall length.

The .300 Winchester Magnum is suitable for all North American big game as well as most thin-skinned game throughout the world.

The SAAMI Maximum Average Pressure for the .300 Winchester Magnum is 54,000 C.U.P. or 64,000 P.S.I.

.300 WINCHESTER MAGNUM

Gun

H. S. PRECISION

Max Length

2.620"

Barrel Length

24"

Trim Length

2.600"

Primer

REM 91/2

OAL Max

3.340"

Case

REM

OAL Min

3.280"

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

P.S.I.

Length

Comment

150 (L) GC

5744

25.0

1824

5744

35.0

2321

25,100**

3.150"

Lyman

168 (L) GC

5744

26.0

1780

5744

35.0

2216

25,000**

3.315"

Penny's

SRA 110 HP

252G

60.3

3091

252G

67.0

3512

58,400

3.170"

27GG

74.6

3437

27GG

78.5

3656

64,000

435G

71.6

3116

435G

79.5

3541

55,600

Case Full

31GG

73.8

3009

31GG

82.0

3419

51,900

Compressed

SRA 125 SP

252G

58.5

2942

252G

65.0

3343

61,000

3.250"

27GG

70.8

3269

27GG

74.5

3478

63,100

435G

70.7

3047

435G

78.5

3462

58,200

Case Full

31GG

73.8

2968

31GG

82.0

3373

57,500

Compressed

HDY 130 SP

252G

56.7

2849

252G

63.0

3237

58,800

3.300"

27GG

69.8

3183

27GG

73.5

3386

63,200

435G

69.3

2973

435G

77.0

3378

60,000

Case Full

31GG

73.8

2973

31GG

82.0

3378

59,500

Compressed

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

P.S.I.

Length

Comment

SRA150 SP

2520

52.2

2604

2520

58.0

2959

58,500

3.380"

*

2700

66.0

2986

2700

69.5

3177

62,300

4350

65.7

2767

4350

73.0

3144

59,400

3100

68.4

2735

3100

76.0

3108

58,900

BAR 150 X

4350

67.9

2924

4350

75.5

3323

53,600**

3.400"

*

3100

72.0

2903

3100

80.0

3299

52,700**

SRA 168 HPBT

2700

63.7

2781

2700

67.0

2959

61,900

3.475"

*

4350

66.6

2774

4350

74.0

3153

50,900**

3100

72.0

2816

3100

80.0

3200

52,600**

SRA180 SBT

2700

62.7

2706

2700

66.0

2879

62,800

3.450"

*

4350

62.1

2547

4350

69.0

2894

62,200

3100

64.8

2551

3100

72.0

2899

58,300

8700

77.4

2475

8700

86.0

2813

45,100

Compressed

NOS 180 BT

4350

64.8

2680

4350

72.0

3046

51,600**

3.450"

*

3100

65.7

2715

3100

73.0

3086

52,800**

8700

77.4

2314

8700

86.0

2630

35,000**

Compressed

SRA 180 HPBT

4350

63.9

2665

4350

71.0

3029

50,600**

3.450"

*

3100

69.3

2708

3100

77.0

3078

51,400**

SPR 180 GRSL

4350

63.0

2612

4350

70.0

2969

50,100**

3.315"

3100

67.9

2632

3100

75.5

2992

49,800**

SWF 180 SP

4350

66.1

2720

4350

73.5

3092

52,800**

3.315"

3100

72.0

2783

3100

80.0

3163

53,800**

WIN 180 FS

2700

58.5

2463

2700

65.0

2799

61,700

3.340"

4350

58.5

2536

4350

65.0

2882

61,900

3100

62.1

2499

3100

69.0

2840

60,300

8700

77.4

2299

8700

86.0

2613

38,500

Compressed

SRA 190 HPBT

2700

60.3

2611

2700

63.5

2778

60,600

3.450"

*

4350

61.6

2550

4350

68.5

2898

50,900**

3100

66.6

2555

3100

74.0

2904

49,800**

8700

77.4

2475

8700

86.0

2813

49,300

Compressed

SRA200 HPBT

2700

58.9

2535

2700

62.0

2697

61,800

3.340"

4350

59.4

2432

4350

66.0

2764

49,000**

3100

64.8

2457

3100

72.0

2793

48,200**

8700

77.4

2283

8700

86.0

2595

36,400**

Compressed

SPR 200 SP

4350

61.2

2459

4350

68.0

2795

52,800**

3.340"

3100

64.8

2471

3100

72.0

2808

52,800**

8700

77.4

2263

8700

86.0

2572

37,600**

Compressed

NOS 200 PART

4350

62.1

2497

4350

69.0

2838

51,100**

3.340"

3100

66.6

2531

3100

74.0

2877

50,400**

8700

77.4

2241

8700

86.0

2547

35,400**

Compressed

SWF 200 SP

4350

61.2

2490

4350

68.0

2830

51,600**

3.340"

3100

64.8

2503

3100

72.0

2845

51,900**

8700

77.4

2281

8700

86.0

2593

38,400**

Compressed

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

P.S.I.

Length

Comment

SPR 200 GRSL

4350

59.4

2463

4350

66.0

2799

52,700**

3.280"

3100

64.8

2493

3100

72.0

2833

51,200**

8700

77.4

2317

8700

86.0

2634

37,100**

Compressed

SRA 220 RN

2700

56.5

2298

2700

59.5

2445

56,800

3.300"

4350

58.5

2288

4350

65.0

2600

61,600

3100

60.3

2253

3100

67.0

2560

59,800

8700

77.4

2371

8700

86.0

2694

53,300

Compressed

SRA220 HPBT

4350

58.5

2333

4350

65.0

2652

51,700**

3.300"

3100

63.4

2368

3100

70.5

2691

50,900**

8700

77.4

2259

8700

86.0

2568

38,400**

Compressed

SRA240 HPBT

4350

57.6

2258

4350

64.0

2567

53,700**

3100

62.5

2302

3100

69.5

2617

54,100**

8700

75.6

2263

8700

84.0

2572

40,500**

Compressed

.30 Caliber Sabots***

REM 55 SABOT

2230

71.0

4064

2230

79.0

4619

51,800**

3.145"

* Over SAAMI Maximum OAL ** Pressure measured in C.U.P. *** Using CCI 250 Primer

Hunting Mastery Selected Tips

Hunting Mastery Selected Tips

Deer hunting is an interesting thing that reminds you of those golden old ages of 19th centuries, where a handsome hunk well equipped with all hunting material rides on horse searching for his target animal either for the purpose of displaying his masculine powers or for enticing and wooing his lady love.

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