Load data for 7 x 57 R + .284 | 150gr | Sierra SBT GameKing

Recommended Powder(s):

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 57 R load data
Case Length (l3):	2.244" \| 57.0mm
Cartridge Length (C.O.L.):	3.025" \| 76.8mm
Seated Depth:	0.419" \| 10.6mm
Shank Seated Depth:	0.279" \| 7.1mm
Case Capacity:	60.0 Grains of Water \| 3.90 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	49313 psi \| 3400 bar
LID:	LID_B5843_C1089
Last updated:	2025-01-01
Recommended Twist Rate:	1:12 - 1:10

Load data for 112 loads in caliber 7 x 57 R with .284 | 150gr | Sierra SBT GameKing bullet and 56 powder(s). 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. 29.1 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>>	85%	44353	90%	**59	99%
[ADI AR 2209]*	<<locked>>	96%	43410	88%	**98	93%
[Accurate 2700]*	<<locked>>	86%	44048	89%	**97	94%
[Accurate 3100]*	<<locked>>	97%	36013	73%	**61	94%
Accurate 4064	<<locked>>	83%	43787	89%	**56	100%
Accurate 4350	<<locked>>	92%	43613	88%	**25	98%
Alliant Reloder- TS 15.5	<<locked>>	85%	44164	90%	**79	100%
Alliant Reloder-16	<<locked>>	93%	44063	89%	**57	98%
Alliant Reloder-17 👍	<<locked>>	89%	43830	89%	**77	100%
[Alliant Reloder-19]*	<<locked>>	97%	42902	87%	**95	93%
Alliant Reloder-23	<<locked>>	97%	35375	72%	**97	98%
Alliant Reloder-26	<<locked>>	96%	38392	78%	**18	96%
Hodgdon CFE223	<<locked>>	84%	44251	90%	**25	98%
Hodgdon H380	<<locked>>	84%	43526	88%	**66	98%
Hodgdon H414	<<locked>>	88%	44295	90%	**35	96%
[Hodgdon H4350]*	<<locked>>	94%	43642	89%	**56	94%
Hodgdon Hybrid 100V 👍	<<locked>>	96%	44295	90%	**08	99%
Hodgdon LVR	<<locked>>	90%	43598	88%	**15	97%
Hodgdon Superperformance	<<locked>>	90%	43714	89%	**38	95%
Hodgdon VARGET	<<locked>>	85%	43990	89%	**46	99%
IMR 4064	<<locked>>	85%	44367	90%	**49	99%
IMR 4166 Enduron	<<locked>>	86%	44193	90%	**16	95%
IMR 4350	<<locked>>	92%	43772	89%	**62	95%
IMR 4451 Enduron	<<locked>>	87%	43656	89%	**36	95%
IMR 4831	<<locked>>	97%	43120	87%	**98	98%
Lovex S065	<<locked>>	89%	43569	88%	**46	97%
Lovex S070	<<locked>>	91%	43976	89%	**72	96%
[Norma 204]*	<<locked>>	92%	44034	89%	**95	93%
[Norma MRP]*	<<locked>>	96%	38580	78%	**82	93%
Norma URP	<<locked>>	92%	43497	88%	**21	98%
Ramshot Big Game 👍	<<locked>>	83%	44237	90%	**15	99%
Ramshot Hunter	<<locked>>	94%	44353	90%	**44	97%
ReloadSwiss RS 50	<<locked>>	84%	43830	89%	**52	96%
ReloadSwiss RS 52	<<locked>>	83%	43511	88%	**12	100%
ReloadSwiss RS 60 👍	<<locked>>	90%	44266	90%	**00	100%
ReloadSwiss RS 62	<<locked>>	93%	44019	89%	**54	98%
ReloadSwiss RS 70	<<locked>>	93%	43947	89%	**71	97%
Rottweil R 903	<<locked>>	87%	43859	89%	**82	99%
[Rottweil R 904]*	<<locked>>	95%	43685	89%	**56	91%
[Rottweil R 905]*	<<locked>>	97%	41336	84%	**79	93%
Rottweil R 907	<<locked>>	89%	44324	90%	**46	95%
SNPE Vectan SP 11	<<locked>>	86%	43685	89%	**05	99%
SNPE Vectan Tubal 5000	<<locked>>	85%	44077	89%	**74	100%
SNPE Vectan Tubal 7000	<<locked>>	90%	43743	89%	**07	95%
Shooters World Long Rifle	<<locked>>	89%	43569	88%	**46	97%
Somchem S355	<<locked>>	86%	43526	88%	**62	99%
Somchem S365 👍	<<locked>>	96%	43700	89%	**67	100%
[Somchem S385]*	<<locked>>	96%	41524	84%	**59	94%
Vihtavuori N135	<<locked>>	87%	43569	88%	**10	100%
Vihtavuori N150	<<locked>>	92%	44077	89%	**46	100%
Vihtavuori N160	<<locked>>	90%	44309	90%	**98	98%
Vihtavuori N550	<<locked>>	89%	43627	88%	**18	98%
Vihtavuori N555	<<locked>>	97%	38406	78%	**75	98%
Winchester 6.5 StaBALL	<<locked>>	91%	43540	88%	**62	99%
Winchester 760	<<locked>>	88%	44295	90%	**35	96%
Winchester StaBALL HD	<<locked>>	97%	31299	63%	**70	97%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2208	<<locked>>	81%	39320	80%	**61	98%
[ADI AR 2209]*	<<locked>>	92%	37811	77%	**77	90%
[Accurate 2700]*	<<locked>>	81%	37637	76%	**72	92%
[Accurate 3100]*	<<locked>>	90%	28543	58%	**77	90%
Accurate 4064	<<locked>>	81%	40321	82%	**93	100%
[Accurate 4350]*	<<locked>>	81%	29559	60%	**16	93%
Alliant Reloder- TS 15.5	<<locked>>	81%	39276	80%	**87	99%
[Alliant Reloder-16]*	<<locked>>	81%	30327	61%	**33	93%
Alliant Reloder-17	<<locked>>	81%	33866	69%	**54	97%
[Alliant Reloder-19]*	<<locked>>	92%	36753	75%	**61	90%
[Alliant Reloder-23]*	<<locked>>	83%	23163	47%	**33	90%
[Alliant Reloder-26]*	<<locked>>	87%	28036	57%	**33	90%
Hodgdon CFE223	<<locked>>	81%	40205	82%	**46	97%
Hodgdon H380	<<locked>>	81%	39407	80%	**84	96%
[Hodgdon H414]*	<<locked>>	81%	34824	71%	**31	92%
[Hodgdon H4350]*	<<locked>>	85%	33141	67%	**29	90%
[Hodgdon Hybrid 100V]*	<<locked>>	81%	27615	56%	**34	94%
[Hodgdon LVR]*	<<locked>>	81%	32895	67%	**82	94%
[Hodgdon Superperformance]*	<<locked>>	83%	34011	69%	**18	90%
Hodgdon VARGET	<<locked>>	81%	38986	79%	**54	98%
IMR 4064	<<locked>>	81%	38551	78%	**38	98%
[IMR 4166 Enduron]*	<<locked>>	81%	38682	78%	**08	94%
[IMR 4350]*	<<locked>>	83%	32677	66%	**20	90%
[IMR 4451 Enduron]*	<<locked>>	81%	36608	74%	**88	93%
[IMR 4831]*	<<locked>>	81%	26353	53%	**05	91%
[Lovex S065]*	<<locked>>	81%	33852	69%	**39	93%
[Lovex S070]*	<<locked>>	81%	31966	65%	**10	91%
[Norma 204]*	<<locked>>	88%	37536	76%	**67	90%
[Norma MRP]*	<<locked>>	92%	33721	68%	**61	90%
[Norma URP]*	<<locked>>	81%	30197	61%	**23	93%
Ramshot Big Game	<<locked>>	81%	40814	83%	**49	98%
[Ramshot Hunter]*	<<locked>>	81%	29501	60%	**97	90%
ReloadSwiss RS 50	<<locked>>	81%	39900	81%	**74	95%
ReloadSwiss RS 52	<<locked>>	81%	39987	81%	**43	100%
ReloadSwiss RS 60	<<locked>>	81%	32938	67%	**44	98%
[ReloadSwiss RS 62]*	<<locked>>	81%	29443	60%	**26	92%
[ReloadSwiss RS 70]*	<<locked>>	81%	29762	60%	**23	91%
Rottweil R 903	<<locked>>	81%	36274	74%	**31	98%
[Rottweil R 904]*	<<locked>>	93%	40248	82%	**90	90%
[Rottweil R 905]*	<<locked>>	92%	36056	73%	**61	90%
[Rottweil R 907]*	<<locked>>	81%	35056	71%	**56	91%
SNPE Vectan SP 11	<<locked>>	81%	37318	76%	**77	98%
SNPE Vectan Tubal 5000	<<locked>>	81%	39015	79%	**85	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	81%	32735	66%	**80	91%
[Shooters World Long Rifle]*	<<locked>>	81%	33852	69%	**39	93%
Somchem S355	<<locked>>	81%	37173	75%	**38	98%
Somchem S365	<<locked>>	81%	26818	54%	**70	96%
[Somchem S385]*	<<locked>>	90%	33344	68%	**82	90%
Vihtavuori N135	<<locked>>	81%	36027	73%	**75	100%
Vihtavuori N150	<<locked>>	81%	31734	64%	**00	98%
[Vihtavuori N160]*	<<locked>>	81%	32648	66%	**52	94%
Vihtavuori N550	<<locked>>	81%	33011	67%	**95	95%
[Vihtavuori N555]*	<<locked>>	82%	24105	49%	**92	90%
Winchester 6.5 StaBALL	<<locked>>	81%	31575	64%	**06	96%
[Winchester 760]*	<<locked>>	81%	34824	71%	**31	92%
[Winchester StaBALL HD]*	<<locked>>	89%	24787	50%	**28	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.