GSC USA - Load Data

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

Explanation of the columns in the 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.

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. 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.

MAX FPS: This is the speed at which maximum allowed pressure is likely to occur in a 24" barrel. It is not the recommended speed. 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. We recommend 50fps to 100fps under maximum as a good general load.

FPS/Inch: This is the speed change that is probable for barrels longer or shorter than 24" with the indicated powder.

% Fill: Is approximately how much a maximum charge will fill the case. Compressed charges up to 105% are not unusual. Full cases give better accuracy and more consistent speeds. Compression is not bad, providing it does not cause mechanical problems such as COL changes or case bulging that prevents chambering. 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.

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
338 Federal	338200HV067	12	Ramshot TAC	42	2650	20
P/Max = 60191psi			Ramshot X-Term.	39	2650	19
			H335	41	2650	20
			AA2230	41	2600	19
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
338-06 A-Square	338180HV070	13	ADI AR 2210	50	3000	23	97	100	7497
P/Max = 65000psi			Hodgdon H4895	54	3075	25	106	100	8729
			Ramshot TAC	55	3050	25	100	100	8464
			Norma 201	53	3025	24	103	100	8361
			Somchem S321	55	3050	25	101	100	8510
			Viht N530	52	3050	22	102	100	8356
	338200HV067	12	ADI AR 2206H	50	2875	23	106	100	8079
			Ramshot TAC	50	2850	21	100	100	7802
			Rel - 12	47	2800	20	102	100	7033
			Hodgdon H4895	49	2875	22	106	100	8058
			Norma 201	49	2850	22	103	100	7712
			Somchem S321	51	2850	22	101	100	7854
			Viht N530	47	2850	22	102	100	7694
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
338 Win Mag	338200HV067	12	ADI AR2208	62	2975	26	102	100	9485
P/Max = 62366psi			IMR 4895	62	3000	25	100	100	9408
			Rel - 15	63	3025	26	100	100	9897
			Norma 203B	63	3025	26	100	100	9826
			S355	64	3000	26	104	100	9612
			Viht N550	69	3075	28	CC	100	10560
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
338 RUM	338225HV055	10	Rel22	92	3150	33
P/Max = 63817psi			ADI AR 2213	91	3100	32
			Norma MRP	93	3150	33
			S385	89	3050	30
			VV N560	92	3150	33
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
340 Weatherby Magnum	338180HV070
P/Max = 63817psi




	338200HV067





	338225HV055





	338257HV045





	338285HV088











Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
338 Lapua Magnum	338200HV067	12	ADI AR 2209	91	3350	32
P/Max = 68168psi			Rel 19	92	3350	33
Note: 24" Barrel			Ramshot Hunter	92	3350	33
			S365	91	3350	31
			VV N560	97	3400	37	CC
			Norma MRP	98	3400	37
	*338225HV055*	10	ADI AR 2213	92	3175	32	107	100	14300
			Rel 22	93	3175	32	107	100	13643
			R/Shot Magnum	99	3200	33	CC	100	14634
			S385	90	3100	30	104	100	13004
			Viht N560	92	3200	33	107	100	14963
			Win WXR	93	3175	32	CC	100	14336
	338257HV045	10	ADI AR 2213	83.5	2950	26	103	100	12019
			Hodgdon H4831	82.5	2875	27	CC	100	11744
			Rel - 22	84.5	2950	27	106	100	12962
			Norma MRP	85.5	2975	28	104	100	13075
			Somchem S385	82	2850	26	103	100	11752
			Viht N560	85	2975	29	105	100	13627
	338285HV087	9	ADI AR 2209	72.5	2725	28	105	100	13027
			IMR 7828	76.5	2775	24	105	100	11936
			Rel - 22	76.5	2750	25	106	100	11807
			Norma MRP	77.5	2775	24	104	100	11919
			Somchem S361	76.5	2650	23	101	100	10661
			Viht N560	77.5	2800	25	106	100	12435
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
338-378 Wea Mag	338225HV055	10	ADI AR 2214	113	3300	37	103	100	17101
P/Max = 63817psi			R/shot Magnum	115	3325	38	102	100	17713
			Norma MRP	107	3300	37	97	100	17303
			IMR 7828	106	3300	38	103	100	17386
			S 385	102	3225	35	96	100	15603
			Viht N560	107	3325	39	99	99	17956
			Win WXR	106	3300	37	102	100	17187
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
338 Edge	338180HV070	13
P/Max = 64000psi




	338200HV067	11





	338225HV055	10





	338257HV045	10	ADI AR 2209	72.5	2825	24	105	100	10959
			Accurate 4350	69.5	2800	22	104	100	10118
			Rel - 19	73.5	2825	25	105	100	11048
			Norma 204	72	2800	24	100	100	10739
			Ramshot Hunter	72.5	2825	23	101	100	10618
			Somchem S385	74.5	2800	23	106	100	10527
	338285HV088	9





Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
348 Winchester	348180HV242	12	IMR 3031	52.5	2900	25	104	100	7724
P/Max = 46412psi			ADI AR 2219	50	2850	25	89	100	7323
			Accurate 2015	49.5	2800	23	94	100	6527
			Rel - 12	52.5	2800	24	95	100	7119
			Norma 202	53.5	2850	25	100	99	7188
			Somchem S355	52.5	2775	24	99	99	6936
			Viht N133	50	2775	22	101	100	6587
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
35 Winchester	358200HV113

Calibre	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
35 Whelen	358180HV132	16	ADI AR2219	54	3000	23	98	100	7164
P/Max = 58015psi			H322	53	3000	24	105	100	7162
			Ramshot X-Term	54	3000	24	100	100	7180
			Norma 200	51	2950	22	93	100	6594
			S321	59	3000	25	104	98	7600
			Viht N130	51	2900	21	104	100	6321
			Viht N530	55	3000	25	104	98	7456
			Win 748	59	3050	25	104	99	7709
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
350 Remington Magnum	358200HV113


Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
9.3x62	366195HV172	14.2	ADI AR2210	57	2925	24
P/Max = 56565psi			A2520	64	3000	25
			H322	57	3000	24
			S321	64	3025	24	102	100	8043
			Norma 202	62	2975	25
			Viht N530	59	2975	25
			Win 748	63	3025	25
	366230HV118	14	ADI	54	2750	21	93	100	7020
			A 2520	61	2800	22	104	100	7483
			BL-C2	63	2800	23	101	100	7966
			S321	60	2775	20	99	100	7636
			S335	57	2700	20	103	100	6670
			Norma 202	58	2775	21	104	100	7257
			Viht N530	56	2775	21	99	100	7490
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
9.3x64 Brenneke	366230HV118	14	H4895	68	2900	24
P/Max = 63817psi			Ramshot TAC	67	2900	25
			S321	68	2900	26
			VV N140	67	2900	24
			ADI AR 2208	68	2900	26
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
9.3x74R	366195HV172	14.2	ADI AR2207	50	2775	23
P/Max = 49313psi			A2495	62	2925	26
			IMR3031	61	2925	27
			Norma 202	62	2875	27
			S335	61	2800	25
			Viht N140	62	2850	25
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
375JDJ	375200HV145	19	IMR 4198	47	2500	40
NOTE DATA IS FOR			Rel 10x	50	2500	43
15" BARREL			A 2015	53	2500	43
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
375 Win	375200HV145	19
P/Max = 63817psi
Don't use in a tube mag.
Data is for a 16" barrel.


Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
375H&H	375200HV145	19	ADI AR 2210	72	3175	28	94	100	8919
P/Max = 62366psi			A 2520	80	3250	29	104	100	9456
			BL-C2	83	3275	30	101	100	9987
			Norma 202	76	3225	28	104	100	9164
			IMR 4895	78	3300	29	108	100	9743
			S341	81	3225	28	102	99	9481
			S321	78	3250	29	99	100	7858
			S335	72	3100	26	103	100	8011
			Vhit N530	74	3225	29	99	100	9431
			Win 748	79	3275	29	99	100	9692
	375250HV103	13


			Somchem S321	71	2950	24	96	100	8841
			Somchem S335	67	2850	22	101	100	7728

	375265HV091	12	ADI AR 2208	67	2775	23	105	100	8585
			H4895	65	2800	23	99	100	8235
			BL-C2	70	2825	23	97	100	8813
			Ramshot Big Game	72	2850	24	106	100	9138
			S341	71	2775	22	99	100	8490
			S355	71	2800	23	CC	100	8778
			Norma 203B	68	2825	23	104	100	8917
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
375 Ruger	375200HV145	19	ADI AR 2219	74	3225	26	92	100	8641
P/Max = 63817psi			IMR 3031	77	3250	27	105	100	8946
			Rel 15	82	3275	29	105	99	9351
			BL-C2	85	3275	29	99	100	9684
			S321	81	3225	28	98	100	9310
			S355	82	3225	28	CC	100	9361
			Viht N530	76	3225	28	98	100	9187
			Win 748	81	3275	24	97	100	9374
	375250HV103	13	ADI AR 2208	71	2850	23	104	100	8429
			IMR 4320	72	2875	24	104	100	8440
			Rel 15	72	2875	24	102	100	8778
			Norma203B	73	2900	24	103	100	8735
			S355	74	2875	24	107	100	8533
			Viht N540	74	2825	24	103	100	8225
	375265HV091	12	ADI AR 2208	72	2800	23
			IMR 4895	71	2850	22
			H4895	68	2800	22	97	100	8472
			Rel 15	73	2850	23
			Norma203B	73	2850	23
			S355	72	2825	23
			Viht N550	80	2850	24	CC	100	9349
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
375 H&H Ackley Improved	375265HV091	12	ADI AR 2208	77	2825	25	98	100	9395
P/Max = 61989psi			Rel 15	77	2850	25	96	100	9770
			IMR 4895	76	2875	24	97	100	9307
			Big Game	82	2875	26	102	100	9416
			Norma 203B	78	2850	26	97	100	9202
			S355	79	2850	24	101	100	9490
			Viht N550	85	2900	27	103	100	10444
			Win 760	86	2900	27	100	99	10705
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
375 Weatherby Magnum	375300HV137	12	ADI AR 2209	82	2700	24
P/Max = 63817psi			H 4350	80	2700	27
			Norma 204	81	2700	24
			Ramshot Hunter	82	2750	23
			S365	82	2750	22
			VV N550	78	2700	23
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
375 Rem Ultra Mag	375300HV137	12	ADI AR 2209	87	2775	25	106	100	10442
P/Max = 63818psi			H 414	84	2775	24	97	100	10194
			Rel - 19	88	2800	25	107	100	10773
			Norma URP	83	2750	23	102	100	9950
			Ramshot Hunter	87	2775	24	102	100	10402
			Somchem S365	85	2775	23	104	100	9673
			Viht N550	83	2750	23	99	100	10087
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
378 Weatherby Magnum	375300HV137	12	ADI AR 2209	100	2950	29	101	100	12890
P/Max = 63817psi			Rel - 19	102	2950	29	101	100	12975
			Norma MRP	108	3000	30	103	100	13789
			Ramshot Magnum	115	3000	30	106	100	13989
			Somchem S385	103	2900	28	102	100	12373
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
9.5x57 M.Sch	379205HV239	12	S335	47	2525	20
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
38-55 Winchester	375240HV308	19	ADI AR 2207	26.5	1975	13	103	99	3065
P/Max = 34809psi			Hodgdon H4227	23.5	1900	12	96	98	2745
			Norma 200	29	2000	14	102	96	3258
			Somchem S265	22.3	1825	11	89	99	2409
			Viht N110	20.5	1850	10	89	100	2322

Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
450/400 N.E. 3"	410325HV170	16	ADI AR 2208	69	2425	24	92	97	7580
P/Max = 40611psi			Accurate 4064	72	2475	23	99	100	7804
			IMR 3031	65	2475	22	90	100	7428
			Norma 202	67	2425	22	88	100	7352
			Somchem S365	82	2550	25	105	99	8752
			Viht N150	73	2425	23	100	99	7522
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Ich	% Fill	Burn	M/PSI
405 Winchester	412300HV153
Not for tube magazines

Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI






Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
416 Ruger	416245HV238	23
P/Max = 63817psi


	416330HV120	16.5	ADI AR 2206H	71	2650	21	106	100	7244
			Accurate 2460	72	2650	20	100	100	6875
			Hodgdon H4895	71.5	2700	20	106	100	7433
			Norma 201	70.5	2650	20	103	100	7107
			Ramshot TAC	72	2675	20	100	100	7196
			Somchem S321	73.5	2675	20	101	100	7248
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
416 Taylor	416330HV120	16.5	ADI AR2210	64	2550	19	98	100	6196
P/Max = 63817psi			Ramshot TAC	69	2600	2	104	100	6664
			BL-C2	72	2650	19	106	100	7007
			Norma 201	68	2575	14	105	100	6596
			S 321	70	2600	20	104	100	6707
			Viht N530	66	2575	19	104	100	6572
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
416 Rigby	416245HV238	23	ADI AR 2219	86	3025	30	84	100	8949
P/Max = 47137psi			H4895	95	3050	30	99	99	9321
			Rel-12	89	3000	28	89	100	8700
			S335	91	2975	28	93	100	8482
			Viht N135	92	3025	29	103	100	8777
			Win 748	95	3075	32	89	99	9727
	*416330HV120*	16.5	ADI AR 2208	84	2575	27	91	99	8587
			A 4350	98	2675	27	105	99	9644
			Norma 203B	84	2625	25	90	99	8965
			Ramshot BigGame	90	2650	26	96	99	9211
			S365	98	2700	27	102	100	9688
			Viht N150	86	2575	23	98	100	8194
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
416 Remington Magnum	416245HV238	23	ADI AR 2219	79.5	3175	26	99	100	8141
P/Max = 62366psi			H335	84.5	3175	26	99	100	8405
			Ramshot X-Terminator	81	3175	25	97	100	8178
			Norma 200	75.5	3100	24	94	100	7484
			Somchem S321	87	3175	27	104	99	8719
			Win 748	87.5	3225	27	105	99	8839
	*416330HV120*	16.5	ADI AR 2210	71	2650	20	94	100	7243
			IMR 4895	77.5	2775	21	106	100	8382
			H4895	75	2725	21	103	100	8064
			Norma 203B	78.5	2750	21	CC	100	8283
			Somchem S321	77	2725	22	98	100	7858
			Viht N530	72.5	2700	20	99	100	7688
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
416 Weatherby Magnum	416330HV120	16.5
P/Max = 63817psi




Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI





Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
10.75x68 Mauser	423320HV061	16.5
P/Max = 47862psi


Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
404 Jeff	423320HV061		IMR 3031	75	2700	21	102	100	7176
P/Max = 52939psi			Norma 202	76.5	2675	23	99	100	7528
			Accurate 2520	80.5	2700	23	97	100	7411
			Accurate 2495	76.5	2700	22	100	100	7174
			Somchem S335	75.5	2600	21	98	100	6899
			ADI AR 2206	72	2625	24	89	100	6916
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
425 Westley Richards	432400HV247	16	ADI AR 2219	59	2200	13	85	100	5543
P/Max = 43511psi			Accurate 2495	64	2250	17	101	100	5978
			Viht N540	67	2225	18	98	100	6042
			IMR3031	62.5	2275	17	99	100	5941
			Norma 202	63.5	2225	18	96	100	5901
			Somchem S321	65.5	2225	19	91	99	6149
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
45-70	458315HV185	28	ADI AR 2205	36	2075	13	99	100	2532
P/Max = 47862psi			A 4100	34	2100	12	88	100	2463
Note that this exceeds CIP			Lil'Gun	37	2200	13	93	100	2727
and SAAMI specs. These			S265	36	2100	13	104	100	2568
loads are only for modern			Viht N110	33	2100	12	104	100	2460
rifles proofed at this pressure.			Win 296	38	2250	14	92	100	3152
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
45-70	458470HV240	14	ADI AP100	11	1100		75	100	1739
SUBSONIC LOADS			ADI AR2205	19	1200		87	97	2737
14" Barrel			R910	19	1250		86	100	2840
P Max = 32000psi			Blue Dot	14	1175		76	100	2286
			H Lil Gun	21	1300		84	100	3185
			Viht N110	19	1250		93	100	2823
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
45 Blaser	458315HV185	28	ADI AR2207	50	2400	15	CC	100	3759
P/Max =53664psi			Win 296	45	2425	15	90	100	3765
			Rel-7	49	2425	14	109	100	3673
			H 4227	45	2375	14	106	100	3505
			Norma 200	53	2450	16	CC	99	4090
			S265	43	2275	13	102	100	3086
	458400HV095	22	ADI AR2207	43	2100	12	110	100	3249
			Rel-7	42	2075	11	105	100	3121
			Win 296	38	2075	12	87	100	3190
			Norma 200	46	2125	12	107	100	3518
			S265	37	1950	10	99	100	2629
			Viht N110	34	1950	10	98	100	2522
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
458 Win Mag	458315HV185	28	ADI AR2207	66	2750	18	107	100	5267
P/Max =62366psi			Rel 7	66	2750	18	105	100	5351
			H4227	60	2700	17	100	100	4632
			S265	58	2600	17	97	100	4372
			Viht N120	66	2700	16	CC	100	4873
	458400HV095	22	ADI AR 2219	66	2475	15	104	100	5420
			R/shot X-Terminator	67	2450	16	102	100	5456
			Rel - 10x	62	2425	15	CC	100	5078
			Norma 200	62	2425	15	99	100	4959
			S321	72	2450	17	CC	99	5854
			Viht N120	59	2325	14	105	100	4249
	458450HV094	19	ADI AR 2219	60	2250	15	103	100	4957
			H335	64	2300	14	103	100	5171
			Ramshot X-Terminator	61	2275	15	101	100	4736
			Norma 200	57	2252	13	98	100	4532
			S321	66	2300	16	CC	100	5412
			Win 748	66	2300	16	CC	100	5439
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
458 Express	458315HV185	28	S321	86	2850	22	CC	98
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
458 Lott / 450 Ackley Mag	458315HV185	28
P/Max = 62366psi




458 Lott / 450 Ackley Mag	458400HV095	22	Somchem S321	82	2575	19	104	100	6779
			Viht N530	77.5	2575	19	105	100	6618
			ADI AR2219	92.5	2575	18	99	100	6211
			H322	75	2575	17	105	100	6212
			Norma 201	79.5	2575	19	106	100	6640
			Ramshot TAC	81	2575	19	103	100	6726
458 Lott / 450 Ackley Mag	458450HV094	19





Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
450 Rigby Magnum	458400HV095	22	S321	96	2650	22	94	100	7871
P/Max = 58015psi			S355	100	2675	23	106	100	8134
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
460 Weatherby Magnum	458315HV185	28	ADI AR2208	115	3150	28
P/Max =63817psi			IMR4895	113	3200	32
			Rel 15	117	3200	29
			S321	115	3150	28
			Viht N530	108	3150	27
			Win 748	116	3200	28
	458400HV095	22	ADI AR2208	105	2775	23
			IMR 4895	103	2800	23
			Rel 15	106	2800	24
			Norma203B	106	2800	24
			S321	105	2800	23
			Win 748	105	2800	22
	458450HV049	19	ADI AR2208	103	2625	22
			H414	111	2700	23
			IMR 4320	104	2650	21
			Norma 203B	105	2675	22
			S355	106	2650	22
			Win 760	115	2700	24
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
470 N.E.
P/Max =39160psi




Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI






Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
505 Gibbs Magnum	505455HV272	16	ADI AR 2206	103	2425	24	85	97	7151
P/Max =39160psi			Accurate 4064	113	2525	26	98	100	8128
			IMR 3031	103.5	2525	24	90	100	7760
			Norma 202	105.5	2500	24	87	99	7925
			Somchem S335	104	2425	23	87	100	6996
			Viht N140	107	2475	23	89	100	7358
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
500 Jeffery	510450HV111	20	ADI AR 2208	116	2600	23	97	97	7788
P/Max = 46412psi			A 2520	119	2625	25	94	100	7821
			H4895	117	2625	25	98	100	7633
			S335	111	2550	22	93	100	6893
			Norma 202	113	2600	25	93	100	7513
			Viht N135	114	2600	23	102	100	7093
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
500 Nitro Express 3"	510450HV.111		Rel 15	96	2350	22
P/Max = 40611psi			ADI AR 2208	93	2300	20
			Accurate 2520	97	2350	21
			Norma 203B	96	2350	21
			S321	94	2300	20
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
550 Express	550600HV168	30	ADI AR2207	69	2175	1	CC	100	3405
P/Max = 63817psi			A1680	69	2125	13	97	100	3753
			Rel-7	68	2125	11	106	100	3460
			Norma 200	74	2200	12	CC	100	3850
			S265	61	2025	10	101	100	2962
			Viht N110	55	2000	10	100	100	2850
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
550 Magnum	550600HV168	30	ADI AR 2219	105	2475	17	99	100	5529
P/Max = 63817psi			A2460	113	2450	17	103	100	6041
			H335	111	2475	17	99	100	6057
			S321	115	2475	19	105	100	6366
			Viht N530	108	2475	17	105	100	6220
			Win 748	115	2500	18	105	100	6393
Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI
577 3" N.E.	585625HV329	40	ADI AR 2219	103.5	2200	19	82	99	5322
P/Max = 35534psi			Accurate 2495	114	2250	21	98	100	6079
			IMR 3031



Cartridge	Bullet	Twist	Powder	Start gr	MAX FPS	FPS/Inch	% Fill	Burn	M/PSI

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.