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

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.256 \| 58gr \| Peregrine VRG-2
Bullet Weight:	58gr \| 3.8g
Bullet Diameter:	0.256" \| 6.50mm
Bullet Length:	<<locked>>
Caliber:	.257 Roberts load data
Case Length (l3):	2.233" \| 56.7mm
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:	51488 psi \| 3550 bar
LID:	LID_B8041_C241
Last updated:	2025-01-01
Recommended Twist Rate:	1:20 - 1:17

Load data for 0 loads in caliber .257 Roberts with .256 | 58gr | Peregrine VRG-2 bullet and 0 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".

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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.
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>>	92%	45977	89%	**25	93%
[ADI AR 2208]*	<<locked>>	97%	45368	88%	**60	91%
Accurate 2015	<<locked>>	88%	46108	90%	**96	99%
[Accurate 2230]*	<<locked>>	86%	45643	89%	**50	94%
Accurate 2460	<<locked>>	86%	46253	90%	**96	96%
Accurate 2495 👍	<<locked>>	93%	46006	89%	**65	99%
Accurate 2520	<<locked>>	91%	45426	88%	**22	97%
Accurate 4064	<<locked>>	96%	43453	84%	**93	97%
Alliant AR-Comp 👍	<<locked>>	91%	45658	89%	**71	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	97%	43947	85%	**96	94%
Alliant Reloder-10x	<<locked>>	85%	45498	88%	**12	100%
[Alliant Reloder-15]*	<<locked>>	95%	45179	88%	**09	92%
[Bofors RP3]*	<<locked>>	96%	43033	84%	**70	93%
[Hodgdon BL-C2]*	<<locked>>	90%	45179	88%	**19	94%
Hodgdon Benchmark	<<locked>>	88%	45890	89%	**50	95%
Hodgdon H322	<<locked>>	88%	45527	88%	**32	98%
Hodgdon H335	<<locked>>	83%	45759	89%	**25	97%
[Hodgdon H4895]*	<<locked>>	91%	45353	88%	**19	93%
Hodgdon TrailBoss	<<locked>>	96%	31256	61%	**02	100%
IMR 3031 👍	<<locked>>	96%	45556	88%	**04	99%
[IMR 4064]*	<<locked>>	97%	44251	86%	**43	92%
IMR 4198	<<locked>>	84%	45687	89%	**86	100%
[IMR 4895]*	<<locked>>	94%	45368	88%	**32	93%
IMR 8208 XBR	<<locked>>	90%	45948	89%	**99	95%
Lovex D073.4	<<locked>>	85%	46325	90%	**76	96%
Lovex D073.5	<<locked>>	86%	45658	89%	**83	96%
Lovex D073.6	<<locked>>	93%	45426	88%	**22	97%
[Lovex S060]*	<<locked>>	91%	46006	89%	**37	93%
Lovex S062	<<locked>>	96%	46021	89%	**09	95%
Norma 201	<<locked>>	93%	46050	89%	**89	95%
Norma 202	<<locked>>	92%	45876	89%	**22	97%
[Norma 203B]*	<<locked>>	96%	45368	88%	**19	93%
[Ramshot Big Game]*	<<locked>>	96%	46079	89%	**29	92%
[Ramshot Wild Boar]*	<<locked>>	90%	45861	89%	**15	93%
[Ramshot X-Terminator]*	<<locked>>	87%	46064	89%	**56	93%
ReloadSwiss RS 14	<<locked>>	96%	31314	61%	**51	100%
ReloadSwiss RS 40	<<locked>>	86%	45847	89%	**06	96%
[ReloadSwiss RS 52]*	<<locked>>	94%	45426	88%	**01	92%
[ReloadSwiss RS 60]*	<<locked>>	97%	41829	81%	**83	94%
Rottweil R 901	<<locked>>	90%	45643	89%	**86	97%
Rottweil R 902	<<locked>>	95%	46267	90%	**93	95%
[Rottweil R 903]*	<<locked>>	97%	40553	79%	**94	92%
[SNPE Vectan SP 9]*	<<locked>>	93%	45934	89%	**02	93%
SNPE Vectan Tubal 3000	<<locked>>	90%	45411	88%	**24	97%
SNPE Vectan Tubal 5000	<<locked>>	96%	44657	87%	**07	98%
Shooters World Match Rifle	<<locked>>	93%	45426	88%	**22	97%
Shooters World Precision	<<locked>>	96%	46021	89%	**09	95%
[Shooters World Tactical Rifle]*	<<locked>>	84%	45571	89%	**33	94%
Somchem S321	<<locked>>	87%	45803	89%	**06	95%
Somchem S335	<<locked>>	91%	45716	89%	**33	98%
[Somchem S341]*	<<locked>>	91%	46195	90%	**73	93%
[Somchem S355]*	<<locked>>	96%	41292	80%	**01	92%
Vihtavuori N130	<<locked>>	88%	46195	90%	**63	100%
Vihtavuori N133	<<locked>>	93%	45629	89%	**56	99%
Vihtavuori N135	<<locked>>	96%	38827	75%	**51	98%
Vihtavuori N140	<<locked>>	95%	45963	89%	**99	98%
Vihtavuori N530	<<locked>>	88%	46209	90%	**29	95%
Vihtavuori N540	<<locked>>	95%	45876	89%	**09	97%
Winchester 748	<<locked>>	88%	45513	88%	**45	96%
[Winchester StaBALL Match]*	<<locked>>	86%	45818	89%	**22	94%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	87%	39885	77%	**68	90%
[ADI AR 2208]*	<<locked>>	94%	41858	81%	**71	90%
Accurate 2015	<<locked>>	81%	36172	70%	**46	98%
[Accurate 2230]*	<<locked>>	81%	38537	75%	**73	91%
[Accurate 2460]*	<<locked>>	81%	38174	74%	**89	93%
Accurate 2495	<<locked>>	81%	30356	59%	**35	95%
[Accurate 2520]*	<<locked>>	81%	31981	62%	**51	91%
[Accurate 4064]*	<<locked>>	83%	27296	53%	**10	90%
Alliant AR-Comp	<<locked>>	81%	31995	62%	**14	98%
[Alliant Reloder- TS 15.5]*	<<locked>>	91%	36245	70%	**76	90%
Alliant Reloder-10x	<<locked>>	81%	39827	77%	**68	99%
[Alliant Reloder-15]*	<<locked>>	92%	40857	79%	**01	90%
[Bofors RP3]*	<<locked>>	91%	35969	70%	**86	90%
[Hodgdon BL-C2]*	<<locked>>	84%	35766	69%	**66	90%
[Hodgdon Benchmark]*	<<locked>>	81%	36622	71%	**14	92%
Hodgdon H322	<<locked>>	81%	35723	69%	**73	95%
Hodgdon H335	<<locked>>	81%	42061	82%	**33	96%
[Hodgdon H4895]*	<<locked>>	86%	37550	73%	**15	90%
Hodgdon TrailBoss	<<locked>>	81%	24801	48%	**15	100%
[IMR 3031]*	<<locked>>	81%	27992	54%	**63	92%
[IMR 4064]*	<<locked>>	94%	40654	79%	**45	90%
IMR 4198	<<locked>>	81%	40930	80%	**81	100%
[IMR 4895]*	<<locked>>	90%	39044	76%	**78	90%
[IMR 8208 XBR]*	<<locked>>	82%	34925	68%	**01	90%
[Lovex D073.4]*	<<locked>>	81%	39856	77%	**32	94%
[Lovex D073.5]*	<<locked>>	81%	37826	73%	**83	93%
[Lovex D073.6]*	<<locked>>	82%	30574	59%	**05	90%
[Lovex S060]*	<<locked>>	86%	38972	76%	**63	90%
[Lovex S062]*	<<locked>>	88%	34867	68%	**04	90%
[Norma 201]*	<<locked>>	84%	34867	68%	**94	90%
[Norma 202]*	<<locked>>	81%	31082	60%	**15	92%
[Norma 203B]*	<<locked>>	91%	39247	76%	**55	90%
[Ramshot Big Game]*	<<locked>>	92%	40901	79%	**94	90%
[Ramshot Wild Boar]*	<<locked>>	86%	39842	77%	**48	90%
[Ramshot X-Terminator]*	<<locked>>	83%	39958	78%	**92	90%
ReloadSwiss RS 14	<<locked>>	81%	24860	48%	**67	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	38798	75%	**28	94%
[ReloadSwiss RS 52]*	<<locked>>	91%	41901	81%	**02	90%
[ReloadSwiss RS 60]*	<<locked>>	92%	36318	71%	**15	91%
[Rottweil R 901]*	<<locked>>	81%	35027	68%	**01	93%
[Rottweil R 902]*	<<locked>>	86%	35244	68%	**94	90%
[Rottweil R 903]*	<<locked>>	94%	37057	72%	**92	90%
[SNPE Vectan SP 9]*	<<locked>>	88%	39755	77%	**51	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	33518	65%	**99	93%
[SNPE Vectan Tubal 5000]*	<<locked>>	81%	27021	52%	**02	91%
[Shooters World Match Rifle]*	<<locked>>	82%	30574	59%	**05	90%
[Shooters World Precision]*	<<locked>>	88%	34867	68%	**04	90%
[Shooters World Tactical Rifle]*	<<locked>>	81%	41017	80%	**19	92%
[Somchem S321]*	<<locked>>	81%	36434	71%	**56	91%
[Somchem S335]*	<<locked>>	81%	32851	64%	**96	94%
[Somchem S341]*	<<locked>>	87%	39769	77%	**19	90%
[Somchem S355]*	<<locked>>	93%	37072	72%	**89	90%
Vihtavuori N130	<<locked>>	81%	37347	73%	**37	98%
Vihtavuori N133	<<locked>>	81%	31024	60%	**56	95%
[Vihtavuori N135]*	<<locked>>	82%	24308	47%	**72	90%
[Vihtavuori N140]*	<<locked>>	81%	29138	57%	**23	91%
[Vihtavuori N530]*	<<locked>>	81%	35679	69%	**43	91%
[Vihtavuori N540]*	<<locked>>	81%	28848	56%	**20	90%
[Winchester 748]*	<<locked>>	81%	35215	68%	**69	91%
[Winchester StaBALL Match]*	<<locked>>	81%	37884	74%	**12	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.

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