Load data for 7 x 57 R + .284 | 120gr | Sierra SPT Pro-Hunter

Recommended Powder(s): ReloadSwiss RS 52, ReloadSwiss RS 60

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.284 \| 120gr \| Sierra SPT Pro-Hunter
Manufacturer SKU:	1900
Bullet Weight:	120gr \| 7.8g
Bullet Diameter:	0.284" \| 7.21mm
Bullet Length:	0.900" \| 22.9mm
Caliber:	7 x 57 R load data
Case Length (l3):	2.244" \| 57.0mm
Cartridge Length (C.O.L.):	3.022" \| 76.8mm
Seated Depth:	0.122" \| 3.1mm
Shank Seated Depth:	0.122" \| 3.1mm
Case Capacity:	60.0 Grains of Water \| 3.90 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	49313 psi \| 3400 bar
LID:	LID_B5835_C1089
Last updated:	2025-02-02

Load data for 124 loads in caliber 7 x 57 R with .284 | 120gr | Sierra SPT Pro-Hunter bullet and 62 powders such as ReloadSwiss RS 52, ReloadSwiss RS 60. 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".

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C.O.L. (mm)
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Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
Barrel Length (cm)
Safety Buffer (%)
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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>>	88%	44034	89%	**48	97%
[Accurate 2700]*	<<locked>>	89%	44063	89%	**69	91%
Accurate 4064	<<locked>>	87%	43511	88%	**61	100%
Accurate 4350	<<locked>>	96%	43874	89%	**30	96%
Alliant Reloder- TS 15.5	<<locked>>	88%	43729	89%	**77	98%
Alliant Reloder-15	<<locked>>	86%	43758	89%	**81	97%
Alliant Reloder-16	<<locked>>	97%	44164	90%	**49	96%
Alliant Reloder-17	<<locked>>	92%	44048	89%	**72	98%
[Alliant Reloder-23]*	<<locked>>	97%	31966	65%	**54	93%
Baschieri & Pellagri 107	<<locked>>	83%	44092	89%	**81	96%
Hodgdon CFE223	<<locked>>	87%	44222	90%	**20	96%
Hodgdon H380	<<locked>>	87%	43714	89%	**61	95%
[Hodgdon H414]*	<<locked>>	91%	44237	90%	**17	93%
[Hodgdon H4350]*	<<locked>>	97%	43613	88%	**35	92%
Hodgdon Hybrid 100V	<<locked>>	97%	40654	82%	**28	97%
Hodgdon LVR	<<locked>>	93%	43743	89%	**10	95%
Hodgdon VARGET	<<locked>>	88%	44324	90%	**51	97%
Hodgdon TrailBoss	<<locked>>	97%	33446	68%	**50	100%
IMR 3031	<<locked>>	85%	43801	89%	**94	100%
IMR 4064	<<locked>>	88%	43743	89%	**35	97%
[IMR 4166 Enduron]*	<<locked>>	88%	43714	89%	**89	93%
[IMR 4350]*	<<locked>>	95%	44048	89%	**41	92%
[IMR 4451 Enduron]*	<<locked>>	90%	43801	89%	**18	92%
[IMR 4831]*	<<locked>>	97%	38247	78%	**89	94%
IMR 4895	<<locked>>	85%	44077	89%	**97	98%
Lovex D073.6	<<locked>>	83%	43830	89%	**61	100%
Lovex S062	<<locked>>	86%	44019	89%	**48	99%
[Lovex S065]*	<<locked>>	93%	44135	89%	**38	94%
[Lovex S070]*	<<locked>>	94%	43947	89%	**54	93%
Norma 201	<<locked>>	83%	44367	90%	**44	99%
Norma 203B	<<locked>>	86%	44063	89%	**87	98%
Norma URP	<<locked>>	96%	44063	89%	**30	96%
Ramshot Big Game	<<locked>>	86%	44121	89%	**04	97%
[Ramshot Hunter]*	<<locked>>	97%	43947	89%	**13	94%
ReloadSwiss RS 14	<<locked>>	96%	33301	68%	**83	100%
[ReloadSwiss RS 50]*	<<locked>>	87%	44121	89%	**35	94%
ReloadSwiss RS 52 👍	<<locked>>	87%	44106	89%	**23	99%
ReloadSwiss RS 60 👍	<<locked>>	93%	44309	90%	**92	99%
ReloadSwiss RS 62	<<locked>>	96%	43990	89%	**49	96%
ReloadSwiss RS 70	<<locked>>	96%	43729	89%	**43	95%
Rottweil R 902	<<locked>>	85%	43845	89%	**25	99%
Rottweil R 903	<<locked>>	90%	44208	90%	**84	98%
[Rottweil R 907]*	<<locked>>	92%	44309	90%	**31	92%
SNPE Vectan SP 11	<<locked>>	89%	44077	89%	**13	97%
SNPE Vectan SP 9	<<locked>>	83%	43700	89%	**54	97%
SNPE Vectan Tubal 5000	<<locked>>	88%	43758	89%	**72	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	93%	43671	89%	**79	93%
[Shooters World Long Rifle]*	<<locked>>	93%	44135	89%	**38	94%
Shooters World Match Rifle	<<locked>>	83%	43830	89%	**61	100%
Shooters World Precision	<<locked>>	86%	44019	89%	**48	99%
Somchem S355	<<locked>>	89%	43613	88%	**58	98%
Somchem S365	<<locked>>	97%	39726	81%	**84	98%
Vihtavuori N133	<<locked>>	84%	44251	90%	**76	100%
Vihtavuori N135	<<locked>>	91%	43671	89%	**31	100%
Vihtavuori N140	<<locked>>	85%	43976	89%	**22	100%
Vihtavuori N150	<<locked>>	95%	44251	90%	**48	99%
Vihtavuori N160	<<locked>>	93%	43743	89%	**74	96%
Vihtavuori N540	<<locked>>	86%	44382	90%	**54	100%
Vihtavuori N550	<<locked>>	93%	43918	89%	**13	96%
[Vihtavuori N555]*	<<locked>>	97%	33489	68%	**26	93%
Winchester 6.5 StaBALL	<<locked>>	94%	43540	88%	**48	98%
[Winchester 760]*	<<locked>>	91%	44237	90%	**17	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2208]*	<<locked>>	81%	35839	73%	**57	94%
[Accurate 2700]*	<<locked>>	86%	40379	82%	**94	90%
Accurate 4064	<<locked>>	81%	36085	73%	**00	99%
[Accurate 4350]*	<<locked>>	85%	29704	60%	**82	90%
Alliant Reloder- TS 15.5	<<locked>>	81%	34795	71%	**67	96%
Alliant Reloder-15	<<locked>>	81%	37695	76%	**46	95%
[Alliant Reloder-16]*	<<locked>>	85%	31256	63%	**05	90%
[Alliant Reloder-17]*	<<locked>>	81%	30414	62%	**08	92%
[Alliant Reloder-23]*	<<locked>>	93%	28660	58%	**46	90%
Baschieri & Pellagri 107	<<locked>>	81%	40915	83%	**18	95%
[Hodgdon CFE223]*	<<locked>>	81%	36056	73%	**30	93%
[Hodgdon H380]*	<<locked>>	81%	35549	72%	**71	92%
[Hodgdon H414]*	<<locked>>	87%	38087	77%	**79	90%
[Hodgdon H4350]*	<<locked>>	94%	39740	81%	**56	90%
[Hodgdon Hybrid 100V]*	<<locked>>	83%	27006	55%	**57	90%
[Hodgdon LVR]*	<<locked>>	84%	32416	66%	**28	90%
[Hodgdon VARGET]*	<<locked>>	81%	35447	72%	**48	94%
Hodgdon TrailBoss	<<locked>>	81%	26556	54%	**93	100%
IMR 3031	<<locked>>	81%	38247	78%	**79	100%
[IMR 4064]*	<<locked>>	81%	34940	71%	**31	94%
[IMR 4166 Enduron]*	<<locked>>	83%	37927	77%	**57	90%
[IMR 4350]*	<<locked>>	92%	39479	80%	**49	90%
[IMR 4451 Enduron]*	<<locked>>	85%	37913	77%	**87	90%
[IMR 4831]*	<<locked>>	89%	29762	60%	**62	90%
IMR 4895	<<locked>>	81%	38667	78%	**79	96%
Lovex D073.6	<<locked>>	81%	40422	82%	**95	99%
Lovex S062	<<locked>>	81%	37072	75%	**03	97%
[Lovex S065]*	<<locked>>	84%	33533	68%	**95	90%
[Lovex S070]*	<<locked>>	89%	36651	74%	**94	90%
Norma 201	<<locked>>	81%	41278	84%	**82	98%
Norma 203B	<<locked>>	81%	37217	75%	**40	96%
[Norma URP]*	<<locked>>	85%	30835	63%	**95	90%
Ramshot Big Game	<<locked>>	81%	36637	74%	**40	95%
[Ramshot Hunter]*	<<locked>>	90%	35505	72%	**13	90%
ReloadSwiss RS 14	<<locked>>	81%	26527	54%	**29	100%
[ReloadSwiss RS 50]*	<<locked>>	81%	36158	73%	**57	90%
ReloadSwiss RS 52	<<locked>>	81%	35520	72%	**40	97%
[ReloadSwiss RS 60]*	<<locked>>	81%	29660	60%	**92	93%
[ReloadSwiss RS 62]*	<<locked>>	86%	31401	64%	**41	90%
[ReloadSwiss RS 70]*	<<locked>>	89%	34983	71%	**17	90%
Rottweil R 902	<<locked>>	81%	39276	80%	**26	98%
[Rottweil R 903]*	<<locked>>	81%	32300	65%	**08	94%
[Rottweil R 907]*	<<locked>>	88%	39740	81%	**33	90%
[SNPE Vectan SP 11]*	<<locked>>	81%	33504	68%	**64	94%
SNPE Vectan SP 9	<<locked>>	81%	40495	82%	**89	97%
SNPE Vectan Tubal 5000	<<locked>>	81%	35476	72%	**02	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	87%	36492	74%	**35	90%
[Shooters World Long Rifle]*	<<locked>>	84%	33533	68%	**95	90%
Shooters World Match Rifle	<<locked>>	81%	40422	82%	**95	99%
Shooters World Precision	<<locked>>	81%	37072	75%	**03	97%
Somchem S355	<<locked>>	81%	33417	68%	**28	95%
[Somchem S365]*	<<locked>>	82%	24990	51%	**38	90%
Vihtavuori N133	<<locked>>	81%	40045	81%	**97	100%
Vihtavuori N135	<<locked>>	81%	32474	66%	**89	99%
Vihtavuori N140	<<locked>>	81%	38334	78%	**13	99%
[Vihtavuori N150]*	<<locked>>	81%	28398	58%	**70	94%
[Vihtavuori N160]*	<<locked>>	82%	30472	62%	**52	90%
Vihtavuori N540	<<locked>>	81%	38232	78%	**33	99%
[Vihtavuori N550]*	<<locked>>	82%	30647	62%	**89	90%
[Vihtavuori N555]*	<<locked>>	92%	28964	59%	**92	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	28485	58%	**61	91%
[Winchester 760]*	<<locked>>	87%	38087	77%	**79	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.