Load data for 7 x 57 R + .284 | 160gr | Sierra SBT GameKing

Recommended Powder(s): Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V, Norma URP, Somchem S365

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.284 \| 160gr \| Sierra SBT GameKing
Manufacturer SKU:	1920
Bullet Weight:	160gr \| 10.4g
Bullet Diameter:	0.284" \| 7.21mm
Bullet Length:	1.258" \| 32.0mm
Caliber:	7 x 57 R load data
Case Length (l3):	2.244" \| 57.0mm
Cartridge Length (C.O.L.):	3.025" \| 76.8mm
Seated Depth:	0.477" \| 12.1mm
Shank Seated Depth:	0.332" \| 8.4mm
Case Capacity:	60.0 Grains of Water \| 3.90 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	49313 psi \| 3400 bar
LID:	LID_B5846_C1089
Last updated:	2025-02-02
Recommended Twist Rate:	1:11 - 1:9

Load data for 112 loads in caliber 7 x 57 R with .284 | 160gr | Sierra SBT GameKing bullet and 56 powders such as Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V, Norma URP, Somchem S365. 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. 28.3 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 2208	<<locked>>	84%	43976	89%	**67	99%
[ADI AR 2209]*	<<locked>>	96%	43584	88%	**23	94%
Accurate 2700	<<locked>>	85%	43801	89%	**15	95%
Accurate 3100	<<locked>>	97%	38043	77%	**18	95%
Accurate 4350 👍	<<locked>>	91%	43816	89%	**46	99%
Alliant Reloder- TS 15.5	<<locked>>	84%	43888	89%	**90	100%
Alliant Reloder-16 👍	<<locked>>	92%	44063	89%	**69	99%
Alliant Reloder-17	<<locked>>	88%	44367	90%	**98	100%
[Alliant Reloder-19]*	<<locked>>	96%	43845	89%	**43	94%
[Alliant Reloder-22]*	<<locked>>	97%	38914	79%	**84	92%
Alliant Reloder-23	<<locked>>	96%	36158	73%	**41	99%
[Alliant Reloder-25]*	<<locked>>	97%	32445	66%	**43	93%
Alliant Reloder-26	<<locked>>	97%	40596	82%	**98	98%
Hodgdon H380	<<locked>>	83%	44266	90%	**00	98%
Hodgdon H414	<<locked>>	87%	43947	89%	**43	96%
Hodgdon H4350	<<locked>>	93%	43526	88%	**77	95%
Hodgdon Hybrid 100V 👍	<<locked>>	95%	44251	90%	**26	100%
Hodgdon LVR	<<locked>>	89%	43729	89%	**26	98%
Hodgdon Superperformance	<<locked>>	90%	43859	89%	**62	95%
Hodgdon VARGET	<<locked>>	83%	43598	88%	**57	99%
IMR 4064	<<locked>>	84%	43482	88%	**51	99%
IMR 4166 Enduron	<<locked>>	84%	43743	89%	**31	96%
IMR 4350	<<locked>>	91%	43816	89%	**87	95%
IMR 4451 Enduron	<<locked>>	86%	44324	90%	**67	96%
IMR 4831	<<locked>>	96%	44063	89%	**33	99%
Lovex S065	<<locked>>	89%	44338	90%	**77	98%
Lovex S070	<<locked>>	90%	43990	89%	**93	96%
[Lovex S071]*	<<locked>>	96%	31328	64%	**74	93%
[Norma 204]*	<<locked>>	91%	44048	89%	**23	94%
Norma MRP	<<locked>>	97%	40698	83%	**49	95%
Norma URP 👍	<<locked>>	91%	43729	89%	**43	99%
Ramshot Hunter	<<locked>>	92%	43642	89%	**46	97%
ReloadSwiss RS 60	<<locked>>	89%	43932	89%	**15	100%
ReloadSwiss RS 62	<<locked>>	92%	44338	90%	**82	99%
ReloadSwiss RS 70	<<locked>>	92%	43801	89%	**89	98%
Rottweil R 903	<<locked>>	85%	43758	89%	**90	100%
[Rottweil R 904]*	<<locked>>	94%	43627	88%	**84	92%
[Rottweil R 905]*	<<locked>>	96%	42641	86%	**23	94%
Rottweil R 907	<<locked>>	87%	44106	89%	**67	95%
SNPE Vectan SP 11	<<locked>>	85%	43642	88%	**20	99%
SNPE Vectan Tubal 5000	<<locked>>	84%	43801	89%	**85	100%
SNPE Vectan Tubal 7000	<<locked>>	88%	43598	88%	**21	96%
Shooters World Long Rifle	<<locked>>	89%	44338	90%	**77	98%
Somchem S355	<<locked>>	85%	44193	90%	**93	100%
[Somchem S361]*	<<locked>>	94%	43961	89%	**61	91%
Somchem S365 👍	<<locked>>	95%	44208	90%	**85	100%
Somchem S385	<<locked>>	97%	43743	89%	**20	95%
Vihtavuori N135	<<locked>>	86%	43700	89%	**21	100%
Vihtavuori N150	<<locked>>	90%	43903	89%	**54	100%
Vihtavuori N160	<<locked>>	88%	43468	88%	**93	98%
[Vihtavuori N165]*	<<locked>>	96%	36071	73%	**46	92%
Vihtavuori N550	<<locked>>	88%	43830	89%	**39	98%
Vihtavuori N555	<<locked>>	97%	39856	81%	**16	98%
Winchester 6.5 StaBALL	<<locked>>	90%	44179	90%	**93	100%
Winchester 760	<<locked>>	87%	43947	89%	**43	96%
Winchester StaBALL HD	<<locked>>	97%	32750	66%	**44	98%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2208	<<locked>>	81%	40480	82%	**05	98%
[ADI AR 2209]*	<<locked>>	89%	35665	72%	**56	90%
[Accurate 2700]*	<<locked>>	81%	38972	79%	**23	93%
[Accurate 3100]*	<<locked>>	87%	26977	55%	**62	90%
Accurate 4350	<<locked>>	81%	30893	63%	**80	95%
Alliant Reloder- TS 15.5	<<locked>>	81%	40596	82%	**31	99%
Alliant Reloder-16	<<locked>>	81%	31285	63%	**83	95%
Alliant Reloder-17	<<locked>>	81%	34780	71%	**02	98%
[Alliant Reloder-19]*	<<locked>>	89%	34621	70%	**39	90%
[Alliant Reloder-22]*	<<locked>>	93%	34345	70%	**79	90%
[Alliant Reloder-23]*	<<locked>>	81%	22684	46%	**51	91%
[Alliant Reloder-25]*	<<locked>>	93%	28863	59%	**41	90%
[Alliant Reloder-26]*	<<locked>>	85%	26643	54%	**21	90%
Hodgdon H380	<<locked>>	81%	40712	83%	**34	98%
[Hodgdon H414]*	<<locked>>	81%	35824	73%	**79	93%
[Hodgdon H4350]*	<<locked>>	82%	31038	63%	**11	90%
Hodgdon Hybrid 100V	<<locked>>	81%	28631	58%	**95	96%
Hodgdon LVR	<<locked>>	81%	33982	69%	**29	95%
[Hodgdon Superperformance]*	<<locked>>	81%	32648	66%	**16	91%
Hodgdon VARGET	<<locked>>	81%	40118	81%	**98	98%
IMR 4064	<<locked>>	81%	40001	81%	**85	98%
IMR 4166 Enduron	<<locked>>	81%	39682	80%	**52	95%
[IMR 4350]*	<<locked>>	81%	31966	65%	**28	91%
[IMR 4451 Enduron]*	<<locked>>	81%	37724	76%	**39	94%
[IMR 4831]*	<<locked>>	81%	27296	55%	**62	93%
Lovex S065	<<locked>>	81%	34925	71%	**90	95%
[Lovex S070]*	<<locked>>	81%	33083	67%	**67	93%
[Lovex S071]*	<<locked>>	92%	26977	55%	**62	90%
[Norma 204]*	<<locked>>	85%	35317	72%	**36	90%
[Norma MRP]*	<<locked>>	90%	32053	65%	**49	91%
Norma URP	<<locked>>	81%	31314	64%	**80	95%
[Ramshot Hunter]*	<<locked>>	81%	30618	62%	**57	92%
ReloadSwiss RS 60	<<locked>>	81%	33924	69%	**95	99%
[ReloadSwiss RS 62]*	<<locked>>	81%	30516	62%	**90	94%
[ReloadSwiss RS 70]*	<<locked>>	81%	30560	62%	**77	93%
Rottweil R 903	<<locked>>	81%	37623	76%	**82	99%
[Rottweil R 904]*	<<locked>>	90%	37768	77%	**69	90%
[Rottweil R 905]*	<<locked>>	89%	33895	69%	**36	90%
[Rottweil R 907]*	<<locked>>	81%	36143	73%	**06	93%
SNPE Vectan SP 11	<<locked>>	81%	38783	79%	**31	99%
SNPE Vectan Tubal 5000	<<locked>>	81%	40248	82%	**23	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	81%	33997	69%	**38	93%
Shooters World Long Rifle	<<locked>>	81%	34925	71%	**90	95%
Somchem S355	<<locked>>	81%	38406	78%	**85	99%
[Somchem S361]*	<<locked>>	92%	40625	82%	**98	90%
Somchem S365	<<locked>>	81%	27833	56%	**28	97%
[Somchem S385]*	<<locked>>	86%	30922	63%	**47	90%
Vihtavuori N135	<<locked>>	81%	37579	76%	**20	100%
Vihtavuori N150	<<locked>>	81%	32735	66%	**44	99%
Vihtavuori N160	<<locked>>	81%	33939	69%	**06	96%
[Vihtavuori N165]*	<<locked>>	93%	32663	66%	**70	90%
Vihtavuori N550	<<locked>>	81%	34229	69%	**43	96%
[Vihtavuori N555]*	<<locked>>	81%	23989	49%	**16	91%
Winchester 6.5 StaBALL	<<locked>>	81%	32300	65%	**60	97%
[Winchester 760]*	<<locked>>	81%	35824	73%	**79	93%
[Winchester StaBALL HD]*	<<locked>>	86%	23134	47%	**06	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.