Load data for .256 Mag. Gibbs + .257 | 100gr | Fox Classic Hunter

Recommended Powder(s): Alliant Reloder- TS 15.5, Alliant Reloder-17, Hodgdon Hybrid 100V, ReloadSwiss RS 60, Somchem S365

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.257 \| 100gr \| Fox Classic Hunter
Manufacturer SKU:	.25 (0.257) - 100 gr
Bullet Weight:	100gr \| 6.5g
Bullet Diameter:	0.257" \| 6.53mm
Bullet Length:	1.189" \| 30.2mm
Caliber:	.256 Mag. Gibbs load data
Case Length (l3):	2.173" \| 55.2mm
Cartridge Length (C.O.L.):	3.004" \| 76.3mm
Seated Depth:	0.358" \| 9.1mm
Shank Seated Depth:	0.358" \| 9.1mm
Case Capacity:	56.0 Grains of Water \| 3.64 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	49313 psi \| 3400 bar
LID:	LID_B7106_C231
Last updated:	2025-01-01

Load data for 112 loads in caliber .256 Mag. Gibbs with .257 | 100gr | Fox Classic Hunter bullet and 56 powders such as Alliant Reloder- TS 15.5, Alliant Reloder-17, Hodgdon Hybrid 100V, ReloadSwiss RS 60, 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".

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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>>	85%	43874	89%	**71	98%
[Accurate 2700]*	<<locked>>	86%	43714	89%	**92	93%
[Accurate 3100]*	<<locked>>	97%	35201	71%	**26	92%
Accurate 4064	<<locked>>	84%	44034	89%	**87	100%
Accurate 4350	<<locked>>	93%	44338	90%	**59	97%
Alliant Reloder- TS 15.5 👍	<<locked>>	86%	44164	90%	**10	99%
Alliant Reloder-16	<<locked>>	94%	44193	90%	**82	97%
Alliant Reloder-17 👍	<<locked>>	90%	44266	90%	**05	99%
Alliant Reloder-23	<<locked>>	96%	34345	70%	**59	96%
[Alliant Reloder-26]*	<<locked>>	97%	38203	77%	**07	94%
Hodgdon CFE223	<<locked>>	84%	43888	89%	**40	97%
Hodgdon H380	<<locked>>	85%	44135	90%	**97	96%
[Hodgdon H414]*	<<locked>>	89%	43990	89%	**40	94%
[Hodgdon H4350]*	<<locked>>	94%	43743	89%	**74	93%
Hodgdon Hybrid 100V 👍	<<locked>>	96%	44338	90%	**33	99%
Hodgdon LVR	<<locked>>	91%	44150	90%	**40	96%
[Hodgdon Superperformance]*	<<locked>>	91%	43656	89%	**49	93%
Hodgdon VARGET	<<locked>>	86%	44266	90%	**77	98%
Hodgdon TrailBoss	<<locked>>	97%	33895	69%	**83	100%
IMR 3031	<<locked>>	83%	44353	90%	**13	100%
IMR 4064	<<locked>>	86%	44106	89%	**71	98%
[IMR 4166 Enduron]*	<<locked>>	86%	43729	89%	**28	94%
[IMR 4350]*	<<locked>>	93%	44019	89%	**74	93%
[IMR 4451 Enduron]*	<<locked>>	87%	43947	89%	**58	94%
IMR 4831	<<locked>>	97%	42337	86%	**04	97%
Lovex S062	<<locked>>	84%	44266	90%	**84	99%
Lovex S065	<<locked>>	90%	44353	90%	**71	96%
[Lovex S070]*	<<locked>>	92%	44106	89%	**87	94%
Norma 203B	<<locked>>	84%	43816	89%	**07	98%
Norma URP	<<locked>>	93%	43685	89%	**49	97%
Ramshot Big Game	<<locked>>	84%	44251	90%	**30	98%
Ramshot Hunter	<<locked>>	94%	43584	88%	**43	95%
ReloadSwiss RS 14	<<locked>>	96%	33866	69%	**23	100%
ReloadSwiss RS 50	<<locked>>	85%	44309	90%	**71	95%
ReloadSwiss RS 52	<<locked>>	84%	43468	88%	**36	99%
ReloadSwiss RS 60 👍	<<locked>>	90%	43772	89%	**18	99%
ReloadSwiss RS 62	<<locked>>	93%	44193	90%	**76	97%
ReloadSwiss RS 70	<<locked>>	93%	44005	89%	**79	96%
Rottweil R 903	<<locked>>	87%	43424	88%	**97	99%
[Rottweil R 907]*	<<locked>>	88%	43453	88%	**41	93%
SNPE Vectan SP 11	<<locked>>	87%	44092	89%	**36	98%
SNPE Vectan Tubal 5000	<<locked>>	85%	43540	88%	**85	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	90%	43801	89%	**12	94%
Shooters World Long Rifle	<<locked>>	90%	44353	90%	**71	96%
Shooters World Precision	<<locked>>	84%	44266	90%	**84	99%
Somchem S355	<<locked>>	87%	44237	90%	**97	99%
Somchem S365 👍	<<locked>>	97%	44237	90%	**02	100%
[Somchem S385]*	<<locked>>	96%	40828	83%	**41	92%
Vihtavuori N135	<<locked>>	88%	44077	89%	**54	100%
Vihtavuori N150	<<locked>>	92%	43903	89%	**67	99%
Vihtavuori N160	<<locked>>	90%	44164	90%	**10	97%
Vihtavuori N550	<<locked>>	90%	43845	89%	**46	97%
Vihtavuori N555	<<locked>>	97%	37507	76%	**58	96%
Winchester 6.5 StaBALL	<<locked>>	92%	44237	90%	**90	99%
[Winchester 760]*	<<locked>>	89%	43990	89%	**40	94%
[Winchester StaBALL HD]*	<<locked>>	97%	30763	62%	**13	94%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2208	<<locked>>	81%	38609	78%	**49	96%
[Accurate 2700]*	<<locked>>	82%	37826	77%	**64	90%
[Accurate 3100]*	<<locked>>	94%	32227	65%	**48	90%
Accurate 4064	<<locked>>	81%	39537	80%	**99	100%
[Accurate 4350]*	<<locked>>	81%	28558	58%	**62	91%
Alliant Reloder- TS 15.5	<<locked>>	81%	37956	77%	**72	98%
[Alliant Reloder-16]*	<<locked>>	81%	29762	60%	**92	91%
Alliant Reloder-17	<<locked>>	81%	32793	67%	**17	95%
[Alliant Reloder-23]*	<<locked>>	88%	26281	53%	**93	90%
[Alliant Reloder-26]*	<<locked>>	91%	31560	64%	**13	90%
Hodgdon CFE223	<<locked>>	81%	39537	80%	**44	96%
Hodgdon H380	<<locked>>	81%	38957	79%	**79	95%
[Hodgdon H414]*	<<locked>>	82%	35041	71%	**26	90%
[Hodgdon H4350]*	<<locked>>	89%	37086	75%	**20	90%
[Hodgdon Hybrid 100V]*	<<locked>>	81%	27006	55%	**87	92%
[Hodgdon LVR]*	<<locked>>	81%	31995	65%	**44	91%
[Hodgdon Superperformance]*	<<locked>>	87%	37884	77%	**08	90%
Hodgdon VARGET	<<locked>>	81%	38247	78%	**43	96%
Hodgdon TrailBoss	<<locked>>	81%	26876	54%	**26	100%
IMR 3031	<<locked>>	81%	41466	84%	**61	100%
IMR 4064	<<locked>>	81%	37971	77%	**36	96%
[IMR 4166 Enduron]*	<<locked>>	81%	37927	77%	**90	91%
[IMR 4350]*	<<locked>>	88%	37333	76%	**23	90%
[IMR 4451 Enduron]*	<<locked>>	81%	35650	72%	**57	90%
[IMR 4831]*	<<locked>>	84%	27862	56%	**30	90%
Lovex S062	<<locked>>	81%	40553	82%	**99	99%
[Lovex S065]*	<<locked>>	81%	33257	67%	**12	91%
[Lovex S070]*	<<locked>>	84%	34345	70%	**57	90%
Norma 203B	<<locked>>	81%	40248	82%	**31	97%
[Norma URP]*	<<locked>>	81%	29588	60%	**85	91%
Ramshot Big Game	<<locked>>	81%	39813	81%	**35	97%
[Ramshot Hunter]*	<<locked>>	85%	33243	67%	**84	90%
ReloadSwiss RS 14	<<locked>>	81%	26963	55%	**62	100%
[ReloadSwiss RS 50]*	<<locked>>	81%	39131	79%	**62	93%
ReloadSwiss RS 52	<<locked>>	81%	39001	79%	**44	99%
ReloadSwiss RS 60	<<locked>>	81%	32053	65%	**07	96%
[ReloadSwiss RS 62]*	<<locked>>	82%	29341	59%	**98	90%
[ReloadSwiss RS 70]*	<<locked>>	84%	32198	65%	**67	90%
Rottweil R 903	<<locked>>	81%	35650	72%	**17	97%
[Rottweil R 907]*	<<locked>>	83%	36608	74%	**87	90%
SNPE Vectan SP 11	<<locked>>	81%	36448	74%	**59	96%
SNPE Vectan Tubal 5000	<<locked>>	81%	38247	78%	**84	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	83%	34476	70%	**05	90%
[Shooters World Long Rifle]*	<<locked>>	81%	33257	67%	**12	91%
Shooters World Precision	<<locked>>	81%	40553	82%	**99	99%
Somchem S355	<<locked>>	81%	36492	74%	**23	97%
[Somchem S365]*	<<locked>>	81%	26397	54%	**20	93%
[Somchem S385]*	<<locked>>	93%	36709	74%	**46	90%
Vihtavuori N135	<<locked>>	81%	35317	72%	**71	100%
Vihtavuori N150	<<locked>>	81%	30850	63%	**62	96%
[Vihtavuori N160]*	<<locked>>	81%	31894	65%	**21	92%
[Vihtavuori N550]*	<<locked>>	81%	32445	66%	**64	92%
[Vihtavuori N555]*	<<locked>>	87%	27108	55%	**59	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	30748	62%	**59	94%
[Winchester 760]*	<<locked>>	82%	35041	71%	**26	90%
[Winchester StaBALL HD]*	<<locked>>	94%	27818	56%	**95	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.