Load data for 7 x 50 R + .284 | 150gr | Sierra SBT GameKing

Recommended Powder(s): ADI AR 2219, Accurate 2015, Alliant Reloder-10x, Baschieri & Pellagri 106, Norma 200

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.284 \| 150gr \| Sierra SBT GameKing
Manufacturer SKU:	1913
Bullet Weight:	150gr \| 9.7g
Bullet Diameter:	0.284" \| 7.21mm
Bullet Length:	1.200" \| 30.5mm
Caliber:	7 x 50 R load data
Case Length (l3):	1.940" \| 49.3mm
Cartridge Length (C.O.L.):	2.637" \| 67.0mm
Seated Depth:	0.503" \| 12.8mm
Shank Seated Depth:	0.363" \| 9.2mm
Case Capacity:	34.5 Grains of Water \| 2.24 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	52939 psi \| 3650 bar
LID:	LID_B5843_C1085
Last updated:	2025-02-02
Recommended Twist Rate:	1:11 - 1:10

Load data for 100 loads in caliber 7 x 50 R with .284 | 150gr | Sierra SBT GameKing bullet and 50 powders such as ADI AR 2219, Accurate 2015, Alliant Reloder-10x, Baschieri & Pellagri 106, Norma 200. The key underlying parameters are shown in the table above.

Important Notice: DO NOT go below Minimum Charge or above Maximum Charge unless there are reasons. Since xxlreloading.com has no control over the equipment and components used by the customer and the data used in connection with the website, any responsibility and liability for the results achieved is rejected. Also see our Terms of Service.

Questions regarding the load data: Please read the information in the next tab "Explanations".
A load must fulfill certain criteria to be listed in the default view below - see "powder criteria to fulfill to be listed".

Our load data might deviate from other sources - see the "most common reasons for deviations".

All loads are based on the bullet and case dimensions shown under "Load Specifications" - see "reloading suggestions" if you deviate.

You can set your specifications in the "Personalized Load Calculator".

Go to the bottom of the "My Account " page to set the measure system (imperial vs. metric)
Muzzle velocity vs. barrel length
Every 1 inch additional barrel length increases muzzle velocity by approx. 18.5 fps
C.O.L. (Inch)
C.O.L. (mm)
Case Length (Inch)
Case Length (mm)
CaseCapacity (GoW)
Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
Barrel Length (cm)
Safety Buffer (%)
.
Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

Our default view only displays powders/loads that fulfill certain criteria: Max pressure of a load <=90% of Max. Standardized Pressure. Fill Rate (Min FR): >80% and <100% for rife loads, >60% and <100% for pistol loads. Min. Propellant Combustion (Min z): >90% for rifle loads , >80% for pistol/revolver loads. Relax these criteria at your own risk to potentially get more powders shown in the load tables.

Click on the desired row in the tables below to add a specific load / powder to your Diary and manage there.

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2207	<<locked>>	90%	46093	87%	**82	100%
ADI AR 2219 👍	<<locked>>	94%	47137	89%	**57	99%
Accurate 2015 👍	<<locked>>	96%	41843	79%	**56	99%
[Accurate 2230]*	<<locked>>	96%	45034	85%	**88	94%
Accurate 2460	<<locked>>	96%	43584	82%	**95	96%
Accurate 2495	<<locked>>	96%	32474	61%	**96	98%
[Accurate 2520]*	<<locked>>	96%	35650	67%	**19	94%
[Accurate 4064]*	<<locked>>	96%	26890	51%	**72	93%
Alliant AR-Comp	<<locked>>	97%	37188	70%	**49	100%
Alliant Reloder-10x 👍	<<locked>>	96%	45426	86%	**18	100%
Alliant Reloder-7	<<locked>>	89%	46470	88%	**72	100%
Baschieri & Pellagri 106 👍	<<locked>>	94%	47543	90%	**72	99%
[Hodgdon BL-C2]*	<<locked>>	97%	38247	72%	**52	92%
Hodgdon Benchmark	<<locked>>	96%	43105	81%	**33	95%
Hodgdon CFE BLK	<<locked>>	89%	46920	89%	**46	95%
Hodgdon H322	<<locked>>	96%	41945	79%	**82	98%
Hodgdon H335	<<locked>>	95%	47065	89%	**64	98%
Hodgdon H4198	<<locked>>	90%	46354	88%	**39	98%
IMR 3031	<<locked>>	97%	32329	61%	**64	96%
IMR 4198	<<locked>>	95%	46441	88%	**78	100%
IMR 4227	<<locked>>	84%	46644	88%	**16	100%
[IMR 8208 XBR]*	<<locked>>	96%	39131	74%	**16	93%
Lovex D073.4	<<locked>>	96%	46180	87%	**15	96%
Lovex D073.5	<<locked>>	97%	44846	85%	**08	96%
[Lovex D073.6]*	<<locked>>	97%	33504	63%	**80	94%
Lovex S053	<<locked>>	85%	46572	88%	**96	100%
Norma 200 👍	<<locked>>	92%	46601	88%	**15	100%
[Norma 201]*	<<locked>>	96%	35810	68%	**64	92%
Norma 202	<<locked>>	96%	35520	67%	**83	95%
[Ramshot X-Terminator]*	<<locked>>	96%	44672	84%	**65	92%
ReloadSwiss RS 36	<<locked>>	85%	46949	89%	**59	100%
ReloadSwiss RS 40	<<locked>>	96%	45643	86%	**21	97%
Rottweil R 901	<<locked>>	96%	39784	75%	**23	96%
SNPE Vectan BA6 1/2	<<locked>>	88%	47166	89%	**75	100%
SNPE Vectan SP 10	<<locked>>	94%	46775	88%	**54	98%
SNPE Vectan Tubal 3000	<<locked>>	97%	40306	76%	**77	96%
SNPE Vectan Tubal 5000	<<locked>>	97%	32285	61%	**49	95%
[Shooters World Match Rifle]*	<<locked>>	97%	33504	63%	**80	94%
[Shooters World Tactical Rifle]*	<<locked>>	95%	47007	89%	**88	94%
[Somchem S321]*	<<locked>>	96%	41829	79%	**88	94%
Somchem S335	<<locked>>	96%	37623	71%	**60	97%
Vihtavuori N120	<<locked>>	94%	47442	90%	**59	100%
Vihtavuori N130	<<locked>>	97%	44048	83%	**46	100%
Vihtavuori N133	<<locked>>	96%	35360	67%	**21	98%
[Vihtavuori N135]*	<<locked>>	96%	26556	50%	**03	94%
Vihtavuori N140	<<locked>>	96%	33083	62%	**14	95%
[Vihtavuori N530]*	<<locked>>	96%	41553	78%	**62	94%
[Vihtavuori N540]*	<<locked>>	97%	33475	63%	**47	94%
Winchester 748	<<locked>>	96%	41321	78%	**95	95%
[Winchester StaBALL Match]*	<<locked>>	96%	44846	85%	**31	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2207	<<locked>>	81%	34534	65%	**14	100%
[ADI AR 2219]*	<<locked>>	81%	30719	58%	**75	94%
Accurate 2015	<<locked>>	81%	25817	49%	**60	95%
[Accurate 2230]*	<<locked>>	88%	33939	64%	**14	90%
[Accurate 2460]*	<<locked>>	85%	29530	56%	**49	91%
[Accurate 2495]*	<<locked>>	81%	19638	37%	**85	91%
[Accurate 2520]*	<<locked>>	88%	27122	51%	**39	90%
[Accurate 4064]*	<<locked>>	91%	22872	43%	**70	90%
Alliant AR-Comp	<<locked>>	81%	23453	44%	**37	96%
Alliant Reloder-10x	<<locked>>	81%	29182	55%	**39	97%
Alliant Reloder-7	<<locked>>	81%	36883	70%	**24	99%
Baschieri & Pellagri 106	<<locked>>	81%	31778	60%	**23	96%
[Hodgdon BL-C2]*	<<locked>>	92%	32909	62%	**54	90%
[Hodgdon Benchmark]*	<<locked>>	85%	30734	58%	**13	90%
[Hodgdon CFE BLK]*	<<locked>>	81%	35969	68%	**75	92%
[Hodgdon H322]*	<<locked>>	81%	26266	50%	**67	92%
[Hodgdon H335]*	<<locked>>	81%	29994	57%	**62	93%
Hodgdon H4198	<<locked>>	81%	35259	67%	**62	96%
[IMR 3031]*	<<locked>>	85%	23032	44%	**21	91%
IMR 4198	<<locked>>	81%	31343	59%	**29	99%
IMR 4227	<<locked>>	81%	42772	81%	**67	100%
[IMR 8208 XBR]*	<<locked>>	90%	32590	62%	**88	90%
[Lovex D073.4]*	<<locked>>	83%	29675	56%	**36	90%
[Lovex D073.5]*	<<locked>>	84%	28950	55%	**36	90%
[Lovex D073.6]*	<<locked>>	91%	27615	52%	**52	91%
Lovex S053	<<locked>>	81%	41597	79%	**28	100%
Norma 200	<<locked>>	81%	32735	62%	**98	99%
[Norma 201]*	<<locked>>	92%	31981	60%	**85	90%
[Norma 202]*	<<locked>>	85%	25164	48%	**60	90%
[Ramshot X-Terminator]*	<<locked>>	92%	38290	72%	**70	90%
ReloadSwiss RS 36	<<locked>>	81%	41611	79%	**87	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	27746	52%	**90	90%
[Rottweil R 901]*	<<locked>>	81%	25179	48%	**24	90%
SNPE Vectan BA6 1/2	<<locked>>	81%	38667	73%	**70	100%
[SNPE Vectan SP 10]*	<<locked>>	81%	30835	58%	**82	93%
[SNPE Vectan Tubal 3000]*	<<locked>>	82%	25744	49%	**98	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	86%	23699	45%	**55	90%
[Shooters World Match Rifle]*	<<locked>>	91%	27615	52%	**52	91%
[Shooters World Tactical Rifle]*	<<locked>>	85%	34229	65%	**88	90%
[Somchem S321]*	<<locked>>	87%	31125	59%	**91	90%
[Somchem S335]*	<<locked>>	81%	23757	45%	**72	91%
Vihtavuori N120	<<locked>>	81%	32982	62%	**55	100%
Vihtavuori N130	<<locked>>	81%	27485	52%	**54	96%
[Vihtavuori N133]*	<<locked>>	81%	23264	44%	**55	93%
[Vihtavuori N135]*	<<locked>>	88%	21205	40%	**52	90%
[Vihtavuori N140]*	<<locked>>	87%	25469	48%	**44	91%
[Vihtavuori N530]*	<<locked>>	87%	31502	60%	**82	90%
[Vihtavuori N540]*	<<locked>>	88%	25947	49%	**77	90%
[Winchester 748]*	<<locked>>	88%	31821	60%	**11	91%
[Winchester StaBALL Match]*	<<locked>>	89%	35766	68%	**77	90%

Start Load - Barrel Length: 23.60''

Any powder missing? Then click here.

FR ... fill rate of the cartridge in percent

MaxP ... max. pressure of load in psi or bar

% ... max. pressure of load in percent of the maximum allowed pressure for this caliber

V(0) ... muzzle velocity in feet per second (fps) or meters per second (m/s)

z ... powder burnt in percent

[...] *... not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.

[...] ²... fill rate low - you might want to consider using a filler to ensure proper ignition.

[...] ᴾ... possible press load - work up slowly to this load while watching for signs of excessive pressure.

👍 ... recommended powder/load for this caliber and bullet combination based on its ballistic performance.