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Medium Calibres from .300"/7.62mm   to   .333"/8.46mm

Do not use the load data below for any other type of bullet.
This data only applies to GS Custom HV bullets.

See the Technical Data page for assistance with the correct choice of bullet and for BC values.

Read the following notes before going to the load data table below.

Cartridge: If your cartridge is not listed, please email us for assistance.

Bullet: Bullet numbers consist of the caliber (first three digits) the weight in gr (next three digits) the bullet type (two letters) and the part number (three digits ). Bullets in green are the preferred bullets for general use in standard calibers.

Twist: The twist is indicated as one rotation in the number of inches shown.
This is a minimum number. When a bullet is indicated for a twist rate, it can also be used in faster twist rates (smaller numbers), but not in slower twist rates (bigger numbers).  See the Technical Data page for more information about the correct bullet choice.

Powder: Listed powders are chosen to give a combination of the best case fill, most complete burn in a 24"barrel and lowest muzzle pressure. If a powder is not listed, the powder on the list gives better performance or the unlisted powder is new and has not been tested.

Start gr: The indicated start load in grains is a safe load in our experience. It may give maximum speed in some rifles and can be reduced if needed. It is not a minimum load and it is not supposed to give the speed as shown in the MAX FPS column.

MAX FPS: This is the speed at which maximum allowed pressure is likely to occur in a 24" barrel. Adjust the number by the amount given in the FPS/Inch column for barrels longer or shorter than 24". Do not exceed the adjusted MAX FPS number. Whatever charge is required to reach the MAX FPS (P/Max ) is the maximum charge for that rifle.

FPS/Inch: This is the speed change that is probable for barrels longer or shorter than 24" with the indicated powder.
Add or subtract the value in this column for every inch the barrel is longer or shorter than 24".  All load data is configured for 24" barrels except where it is stated otherwise.

Case Fill: Is approximately how much the charge will fill the case. Compressed charges up to 105% are not unusual. Full cases give better accuracy and more consistent speeds. This is a guide line only and the numbers may vary depending on the make of the case and the capacity. If this column contains CC, case capacity will probably be the limiting factor rather than MAX FPS.

Burn: Is the percentage of powder that will burn in a 24" barrel. Accuracy is improved with a more complete burn.

M/PSI: Is the approximate muzzle pressure at MAX FPS. This is an indication of what the recoil will be. With the same bullet and rifle, lower muzzle pressure will have less recoil.

Load Data for Medium Calibres from .300"/7.62mm  to   .333"/8.46mm
Go to Small Calibres / Large Calibres

Have you read the notes above?  If not, do so before using this load data table.

Cartridge Bullet Twist Powder Start gr MAX FPS

FPS/Inch

% Fill Burn M/PSI
7.62 x 39 312125HV179 9.4 S265 21.5 2425 18 100 100 3176
      ADI AR2205  21.5 2425 15 95 100 3297
                   
                   
                   
                   
Cartridge Bullet Twist Powder Start gr MAX FPS

FPS/Inch

  % Fill Burn M/PSI
30-06 Springfield 308130HV80 13 ADI AR2219 50 3300 29   90 100 9195
      IMR 3031 52 3350 29   104 100 9564
      A 2520 56 3325 30   101 100 9798
      Norma 202 53 3300 29   101 100 9476
      S 321 53 3225 31   96 100 9900
      Viht N530 51 3300 30   96 100 9746
      Win 748 55 3350 31   95 100 10023
30-06 Springfield 308140HV241 11 ADI AR 2208 52 3175 29   104 98 9569
      A 2495 50 3200 27   104 100 8663
      A 2520 53 3200 28   100 100 8916
      IMR 3031 49 3200 25   103 100 8692
      Norma 202 50 3175 27   100 100 9099
      S321 52 3175 28   96 100 9076
      Viht N530 49 3175 28   95 100 8922
 30-06 Springfield 308150HV079 10 ADI AR2208 52 3075 28   102 99 9623
      A2520 53 3100 27   98 100 9378
      IMR 4895 51 3125 28   101 100 9684
      BL-C2 54 3125 28   95 100 9955
      S355 54 3100 28   105 100 9848
      S321 52 3075 27   93 100 9534
      Norma 203B 53 3125 29   101 100 10044
      Win 748 52 3125 28   93 100 9611
Cartridge Bullet Twist Powder Start gr MAX FPS

FPS/Inch

  % Fill Burn M/PSI
30-06 Ackley Improved 308130HV080 13 ADI AR2219 51 3250 28        
      IMR 3031 52 3300 29        
      BL-C2 58 3300 31        
      IMR 4895 55 3300 30        
      Norma 203B 56 3300 31        
      S321 55 3250 30        
      Viht N530 52 3250 30        
      Win 748 55 3300 30        
30-06 Ackley Improved 308140HV241 11 ADI AR 2208 53 3125 29        
      IMR 3031 50 3175 27        
      IMR 4895 52 3175 27        
      Norma 203B 54 3175 30        
      Viht N530 50 3125 28        
      S321 53 3150 29        
      Win 748 53 3175 29        
30-06 Ackley Improved 308150HV079 10 ADI AR2208 52 3050 27        
      IMR 4895 52 3100 27        
      Ramshot TAC 57 3100 28        
      S355 54 3075 28        
      Norma 203B 53 3075 28        
      Viht N530 50 3050 26        
      Win 748 52 3075 27        

Cartridge

Bullet

Twist

Powder

Start gr

MAX FPS

FPS/Inch

 

% Fill

Burn

M/PSI

308 Norma Magnum

308100HV081 17

ADI AR 2219

66 3925 38   90 100 11119
      A2520 73 3950 40   100 100 11707
      IMR4895 71 4000 40   104 100 12092
      Norma 202 70 3925 39   100 100 11370
      S321 72 3950 40   96 100 11837
      Viht N530 68 3950 40   96 100 11739
     

W 748

72 3975 40   95 100 11938

308 Norma Magnum

308130HV080

13

ADI AR 2208

67

3525

35

100

100

11790

     

IMR 4320

68

3550

34

 

99

100

11845

     

Rel - 15

68

3550

35

98

100

12313

     

Norma 203B

68

3550

36

98

100

12222

     

S365

75

3550

36

108

100

12520

     

Viht N550

74

3600

37

104

99

12989

308 Norma Magnum 308140HV241 11

ADI AR2208

64

3375

33

99

100

10883

     

H380

67

3425

34

98

100

12040

     

Rel 15

65

3425

33

97

100

11952

     

Norma URP

70

3475

34

106

100

12519

     

S365

72

3500

34

CC

100

12213

     

Viht N550

70

3475

35

103

100

12657

Cartridge Bullet Twist Powder Start gr MAX FPS

FPS/Inch

       
30-30 Winchester 308145HV059   S335 32 2450 19        
Cartridge Bullet Twist Powder Start gr MAX FPS FPS/Inch   %Fill Burn M/PSI
300 WSM 308130HV080 13 ADI AR 2206H 61 3450 31   96 100 10647
      Morma 203B 64 3475 32   100 100 10832
      Rel 17 68 3500 33   101 100 11224
      R/Shot BigGame 68 3500 32   102 100 11013
      S355 64 3450 32   103 100 10571
      Viht N550 69 3500 33   106 100 11492
300 WSM 308140HV241 11 ADI AR 2206H 59 3325 30   96 100 10365
      R/Shot BigGame 65 3375 30   101 100 10731
      Rel 17 65 3400 31   100 100 10943
      S355 62 3325 30   103 100 10293
      Norma 203B 61 3350 30   99 100 10543
      Viht N550 67 3400 32   105 100 11237
300 WSM 308150HV079 10 ADI AR 2208 60 3275 29   100 100 10716
      Norma 203B 62 3325 30   98 100 11077
      Rel 17 64 3375 30   99 100 11527
      R/Shot BigGame 64 3350 30   100 100 11303
      S355 62 3300 29   102 100 10821
      Viht N550 66 3350 31   104 100 11865
300 WSM 308160HV078 10 ADI AR 2208 59 3175 27   99 100 10501
      R/Shot BigGame 61 3225 29   99 100 11066
      Rel 17 63 3275 29   98 100 11288
      Norma URP 64 3250 29   106 100 11488
      S365 66 3275 29   CC 100 11179
      Viht N550 64 3250 30   103 100 11638
Cartridge Bullet Twist Powder Start gr MAX FPS

FPS/Inch

  % Fill Burn M/PSI
30 Newton 308160HV078 10 ADI AR 2209 68 3000 32   98 97 11660
      A 4350 64 2975 31   98 100 11216
      H4350 65 3000 31   94 100 11408
      Norma URP 64 2975 31   94 100 11136
      S365 67 3000 30   96 100 10872
      Viht N550 65 2975 32   91 100 11236
      S365 70 3200 30   102 100 11670
      Viht N550 68 3200 32   97 100 12141
Cartridge Bullet Twist Powder Start gr MAX FPS

FPS/Inch

  % Fill Burn M/PSI
303 British 311140HV083 10 ADI AR 2219 40 2900 24   93 100 7188
      A 2495 43 2925 25   109 100 7494
      IMR 3031 42 2950 25   108 100 7510
      Norma 202 42 2900 25   104 100 7406
      S335 42 2850 24   103 100 6804
      S321 44 2925 26   99 98 7656
      Viht N140 43 2875 25   108 100 7111
Cartridge Bullet Twist Powder Start gr MAX FPS

FPS/Inch

  % Fill Burn M/PSI
303 Epps 311140HV083 10 ADI AR 2219 44 3050 26   90 100 8148
      A 2495 47 3100 27   105 100 8502
      IMR 4895 48 3100 27   103 99 8452
      Norma 202 47 3050 25   100 100 8420
      S321 50 3050 27   96 99 8750
      Viht N135 48 3050 25   109 100 7943
Cartridge Bullet Twist Powder Start gr MAX FPS

FPS/Inch

  % Fill Burn M/PSI
8x57JS 323160HV102 12 ADI AR2210 45 2900 24        
      Accurate 2495 49 3000 24   CC    
      IMR3031 47 3000 24   CC    
      S335 49 2950 23        
      Norma 202 48 2950 24        
      Viht N530 47 2950 25        
8x57JS  323180HV073  10 S335 45 2675 21   99 100 6889
Cartridge Bullet Twist Powder Start gr MAX FPS

FPS/Inch

  % Fill Burn M/PSI
325 WSM 323170HV188 12 ADI AR 2208 61 3150 27        
      H380 64 3200 26        
      Rel 15 61 3200 27        
      IMR 4895 60 3200 27        
      Norma 203B 62 3200 27        
      S355 63 3175 27        
      Viht N550 67 3250 29        
Cartridge Bullet Twist Powder Start gr MAX FPS

FPS/Inch

  % Fill Burn M/PSI
8mm Rem Mag 323170HV188 12 H4350 78 3300 33        
      Ramshot Hunter 81 3300 33        
      Rel 19 82 3300 34        
Cartridge Bullet Twist Powder Start gr MAX FPS

FPS/Inch

  % Fill Burn M/PSI
318 Westley Richards 330165HV109   S335 50 2800 25        
                     
Cartridge Bullet Twist Powder Start gr MAX FPS

FPS/Inch

  % Fill Burn M/PSI

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GS Custom Bullets, situated in Port Elizabeth on the East Coast of South Africa, manufactures solid copper, turned, monolithic hollow point bullets for hunting and sport shooting. These bullets are used by hunters on several continents, hunting from the smallest of antelope to the largest of dangerous game, using the smooth HP bullet, as well as the more popular HV, FN and SP bullets with the patented drive band concept. GSC bullets are configured for the highest possible ballistic coefficients. SP bullets are mainly used for sport shooting. All GS Custom Bullets are coated.