Load data for .256 Mag. Gibbs + .257 | 58gr | Peregrine VRG-2

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.257 \| 58gr \| Peregrine VRG-2
Bullet Weight:	58gr \| 3.8g
Bullet Diameter:	0.257" \| 6.53mm
Bullet Length:	<<locked>>
Caliber:	.256 Mag. Gibbs load data
Case Length (l3):	2.173" \| 55.2mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	56.0 Grains of Water \| 3.64 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	49313 psi \| 3400 bar
LID:	LID_B8043_C231
Last updated:	2026-02-04
Recommended Twist Rate:	1:20 - 1:17

Load data for 104 loads in caliber .256 Mag. Gibbs with .257 | 58gr | Peregrine VRG-2 bullet and 52 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 "Dashboard " page to set the measure system (imperial vs. metric)
No data yet
C.O.L. (Inch)
C.O.L. (mm)
We recommend you limit powder range to relevant brands to speed up re-calculation of results
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.
Case Length (Inch)
Case Length (mm)
CaseCapacity (GoW)
Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
Barrel Length (cm)
Safety Buffer (%)
.

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 2206H]*	<<locked>>	91%	44164	90%	**79	92%
Accurate 2015	<<locked>>	87%	44179	90%	**66	99%
[Accurate 2230]*	<<locked>>	85%	43714	89%	**17	93%
Accurate 2460	<<locked>>	86%	44266	90%	**60	95%
Accurate 2495 👍	<<locked>>	92%	43816	89%	**42	99%
Accurate 2520	<<locked>>	91%	44266	90%	**02	96%
Accurate 4064	<<locked>>	96%	42308	86%	**73	97%
Alliant AR-Comp 👍	<<locked>>	91%	43613	88%	**45	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	97%	42888	87%	**76	93%
Alliant Reloder-10x	<<locked>>	84%	43482	88%	**83	99%
[Bofors RP3]*	<<locked>>	96%	41916	85%	**50	93%
[Hodgdon BL-C2]*	<<locked>>	90%	44063	89%	**15	94%
Hodgdon Benchmark	<<locked>>	88%	44077	89%	**20	95%
Hodgdon H322	<<locked>>	87%	43511	88%	**99	97%
[Hodgdon H4895]*	<<locked>>	91%	44353	90%	**02	93%
Hodgdon TrailBoss	<<locked>>	96%	31140	63%	**05	100%
IMR 3031	<<locked>>	95%	43540	88%	**55	98%
IMR 4198	<<locked>>	84%	43961	89%	**53	100%
[IMR 4895]*	<<locked>>	94%	44309	90%	**29	92%
[IMR 8208 XBR]*	<<locked>>	89%	44019	89%	**53	94%
Lovex D073.4	<<locked>>	85%	44367	90%	**43	95%
Lovex D073.5	<<locked>>	86%	43685	89%	**47	95%
Lovex D073.6	<<locked>>	92%	43918	89%	**96	96%
[Lovex S060]*	<<locked>>	90%	44034	89%	**01	92%
[Lovex S062]*	<<locked>>	95%	43743	89%	**66	94%
[Norma 201]*	<<locked>>	92%	44150	90%	**56	94%
Norma 202	<<locked>>	92%	43801	89%	**86	97%
[Norma 203B]*	<<locked>>	96%	44121	89%	**09	92%
[Ramshot Wild Boar]*	<<locked>>	90%	44048	89%	**70	92%
[Ramshot X-Terminator]*	<<locked>>	86%	44193	90%	**10	92%
ReloadSwiss RS 14	<<locked>>	95%	30719	62%	**51	100%
ReloadSwiss RS 40	<<locked>>	85%	43903	89%	**76	95%
[ReloadSwiss RS 60]*	<<locked>>	97%	40944	83%	**73	93%
Rottweil R 901	<<locked>>	89%	43729	89%	**50	96%
[Rottweil R 902]*	<<locked>>	94%	44367	90%	**60	94%
[SNPE Vectan SP 9]*	<<locked>>	92%	43961	89%	**70	92%
SNPE Vectan Tubal 3000	<<locked>>	90%	43453	88%	**91	96%
SNPE Vectan Tubal 5000	<<locked>>	96%	43729	89%	**94	98%
Shooters World Match Rifle	<<locked>>	92%	43918	89%	**96	96%
[Shooters World Precision]*	<<locked>>	95%	43743	89%	**66	94%
[Shooters World Tactical Rifle]*	<<locked>>	83%	43642	88%	**01	93%
[Somchem S321]*	<<locked>>	87%	43961	89%	**76	94%
Somchem S335	<<locked>>	91%	43947	89%	**10	98%
[Somchem S341]*	<<locked>>	91%	44353	90%	**47	92%
Vihtavuori N130	<<locked>>	86%	43410	88%	**07	99%
Vihtavuori N133	<<locked>>	93%	43859	89%	**17	99%
Vihtavuori N135	<<locked>>	97%	38189	77%	**42	97%
Vihtavuori N140	<<locked>>	94%	43729	89%	**47	97%
[Vihtavuori N530]*	<<locked>>	88%	44353	90%	**83	94%
Vihtavuori N540	<<locked>>	94%	43830	89%	**76	97%
Winchester 748	<<locked>>	87%	43468	88%	**09	95%
[Winchester StaBALL Match]*	<<locked>>	85%	43976	89%	**76	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	88%	39972	81%	**71	90%
Accurate 2015	<<locked>>	81%	35375	72%	**33	97%
[Accurate 2230]*	<<locked>>	81%	37681	76%	**56	90%
[Accurate 2460]*	<<locked>>	81%	37144	75%	**66	92%
[Accurate 2495]*	<<locked>>	81%	29515	60%	**32	94%
[Accurate 2520]*	<<locked>>	81%	31140	63%	**45	90%
[Accurate 4064]*	<<locked>>	85%	28427	58%	**63	90%
Alliant AR-Comp	<<locked>>	81%	31270	63%	**10	98%
[Alliant Reloder- TS 15.5]*	<<locked>>	92%	37028	75%	**12	90%
Alliant Reloder-10x	<<locked>>	81%	39001	79%	**74	99%
[Bofors RP3]*	<<locked>>	93%	36680	74%	**09	90%
[Hodgdon BL-C2]*	<<locked>>	85%	36376	74%	**96	90%
[Hodgdon Benchmark]*	<<locked>>	81%	35940	73%	**01	91%
Hodgdon H322	<<locked>>	81%	34969	71%	**56	95%
[Hodgdon H4895]*	<<locked>>	87%	38232	78%	**48	90%
Hodgdon TrailBoss	<<locked>>	81%	24685	50%	**21	100%
[IMR 3031]*	<<locked>>	81%	27383	56%	**59	91%
IMR 4198	<<locked>>	81%	40190	81%	**74	99%
[IMR 4895]*	<<locked>>	91%	39856	81%	**10	90%
[IMR 8208 XBR]*	<<locked>>	83%	35766	73%	**43	90%
[Lovex D073.4]*	<<locked>>	81%	38957	79%	**15	93%
[Lovex D073.5]*	<<locked>>	81%	36970	75%	**63	92%
[Lovex D073.6]*	<<locked>>	83%	30690	62%	**28	90%
[Lovex S060]*	<<locked>>	87%	39871	81%	**99	90%
[Lovex S062]*	<<locked>>	89%	35447	72%	**40	90%
[Norma 201]*	<<locked>>	86%	35723	72%	**27	90%
[Norma 202]*	<<locked>>	81%	30371	62%	**99	91%
[Norma 203B]*	<<locked>>	92%	39885	81%	**84	90%
[Ramshot Wild Boar]*	<<locked>>	87%	40451	82%	**91	90%
[Ramshot X-Terminator]*	<<locked>>	84%	40814	83%	**38	90%
ReloadSwiss RS 14	<<locked>>	81%	24424	50%	**57	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	37840	77%	**09	93%
[ReloadSwiss RS 60]*	<<locked>>	93%	36230	73%	**06	90%
[Rottweil R 901]*	<<locked>>	81%	34011	69%	**91	93%
[Rottweil R 902]*	<<locked>>	87%	35288	72%	**14	90%
[SNPE Vectan SP 9]*	<<locked>>	90%	40538	82%	**81	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	32880	67%	**99	92%
[SNPE Vectan Tubal 5000]*	<<locked>>	81%	26484	54%	**86	90%
[Shooters World Match Rifle]*	<<locked>>	83%	30690	62%	**28	90%
[Shooters World Precision]*	<<locked>>	89%	35447	72%	**40	90%
[Shooters World Tactical Rifle]*	<<locked>>	81%	40016	81%	**15	92%
[Somchem S321]*	<<locked>>	81%	35621	72%	**53	91%
[Somchem S335]*	<<locked>>	81%	32184	65%	**96	93%
[Somchem S341]*	<<locked>>	89%	40698	83%	**51	90%
Vihtavuori N130	<<locked>>	81%	36608	74%	**40	98%
Vihtavuori N133	<<locked>>	81%	30385	62%	**46	95%
[Vihtavuori N135]*	<<locked>>	83%	24540	50%	**95	90%
[Vihtavuori N140]*	<<locked>>	81%	28500	58%	**07	90%
[Vihtavuori N530]*	<<locked>>	82%	35679	72%	**46	90%
[Vihtavuori N540]*	<<locked>>	82%	29240	59%	**53	90%
[Winchester 748]*	<<locked>>	81%	34447	70%	**50	91%
[Winchester StaBALL Match]*	<<locked>>	82%	38812	79%	**48	91%

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.

<<locked>>... you need to buy an access license to unlock the data