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

Recommended Powder(s): Accurate 2495, Alliant AR-Comp, IMR 3031

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:	0.563" \| 14.3mm
Caliber:	.257 Roberts load data
Case Length (l3):	2.233" \| 56.7mm
Cartridge Length (C.O.L.):	2.576" \| 65.4mm
Seated Depth:	0.220" \| 5.6mm
Shank Seated Depth:	0.122" \| 3.1mm
Case Capacity:	56.0 Grains of Water \| 3.64 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	51488 psi \| 3550 bar
LID:	LID_B8043_C241
Last updated:	2025-01-01
Recommended Twist Rate:	1:20 - 1:17

Load data for 114 loads in caliber .257 Roberts with .257 | 58gr | Peregrine VRG-2 bullet and 57 powders such as Accurate 2495, Alliant AR-Comp, IMR 3031. 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)
No data yet
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 2206H]*	<<locked>>	92%	46021	89%	**12	93%
[ADI AR 2208]*	<<locked>>	97%	45411	88%	**60	92%
Accurate 2015	<<locked>>	88%	46151	90%	**96	99%
[Accurate 2230]*	<<locked>>	86%	45687	89%	**53	94%
Accurate 2460	<<locked>>	86%	46296	90%	**96	96%
Accurate 2495 👍	<<locked>>	93%	46064	89%	**68	99%
Accurate 2520	<<locked>>	91%	45469	88%	**25	97%
Accurate 4064	<<locked>>	96%	43511	85%	**96	97%
Alliant AR-Comp 👍	<<locked>>	91%	45701	89%	**75	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	97%	44005	85%	**83	93%
Alliant Reloder-10x	<<locked>>	85%	45542	88%	**15	100%
[Alliant Reloder-15]*	<<locked>>	95%	45223	88%	**12	92%
Hodgdon BL-C2	<<locked>>	91%	46296	90%	**55	95%
Hodgdon Benchmark	<<locked>>	88%	45934	89%	**50	95%
Hodgdon H322	<<locked>>	88%	45556	88%	**32	98%
Hodgdon H335	<<locked>>	83%	45803	89%	**29	97%
Hodgdon TrailBoss	<<locked>>	96%	31270	61%	**05	100%
IMR 3031 👍	<<locked>>	96%	45600	89%	**88	99%
[IMR 4064]*	<<locked>>	97%	44295	86%	**43	92%
IMR 4198	<<locked>>	85%	45716	89%	**89	100%
[IMR 4895]*	<<locked>>	95%	46282	90%	**65	93%
IMR 8208 XBR	<<locked>>	90%	45992	89%	**02	95%
Lovex D073.4	<<locked>>	85%	45411	88%	**63	95%
Lovex D073.5	<<locked>>	86%	45716	89%	**86	96%
Lovex D073.6	<<locked>>	93%	46064	89%	**35	97%
[Lovex S060]*	<<locked>>	91%	46050	89%	**37	93%
Lovex S062	<<locked>>	96%	45876	89%	**06	95%
Norma 201	<<locked>>	93%	46093	90%	**93	95%
Norma 202	<<locked>>	92%	45919	89%	**22	97%
[Norma 203B]*	<<locked>>	96%	45223	88%	**15	93%
[Ramshot Big Game]*	<<locked>>	96%	46122	90%	**29	92%
[Ramshot Wild Boar]*	<<locked>>	90%	45919	89%	**15	93%
[Ramshot X-Terminator]*	<<locked>>	87%	45919	89%	**53	93%
ReloadSwiss RS 14	<<locked>>	95%	30879	60%	**44	100%
ReloadSwiss RS 40	<<locked>>	86%	45890	89%	**09	96%
ReloadSwiss RS 52	<<locked>>	97%	45919	89%	**88	95%
Rottweil R 901	<<locked>>	90%	45687	89%	**89	97%
Rottweil R 902	<<locked>>	95%	46311	90%	**96	95%
[Rottweil R 903]*	<<locked>>	97%	40582	79%	**94	92%
[SNPE Vectan SP 9]*	<<locked>>	93%	45977	89%	**06	93%
SNPE Vectan Tubal 3000	<<locked>>	90%	45455	88%	**27	97%
SNPE Vectan Tubal 5000	<<locked>>	96%	44686	87%	**94	98%
Shooters World Match Rifle	<<locked>>	93%	46064	89%	**35	97%
Shooters World Precision	<<locked>>	96%	45876	89%	**06	95%
[Shooters World Tactical Rifle]*	<<locked>>	84%	45614	89%	**33	94%
Somchem S321	<<locked>>	87%	45847	89%	**06	95%
Somchem S335	<<locked>>	91%	45759	89%	**37	98%
[Somchem S341]*	<<locked>>	91%	46238	90%	**76	93%
[Somchem S355]*	<<locked>>	96%	41336	80%	**01	92%
Vihtavuori N130	<<locked>>	88%	46224	90%	**63	100%
Vihtavuori N133	<<locked>>	93%	45672	89%	**43	99%
Vihtavuori N135	<<locked>>	96%	38870	75%	**55	98%
Vihtavuori N140	<<locked>>	95%	45992	89%	**86	98%
Vihtavuori N530	<<locked>>	89%	46267	90%	**32	95%
Vihtavuori N540	<<locked>>	95%	45934	89%	**12	97%
Winchester 748	<<locked>>	88%	45556	88%	**45	96%
[Winchester StaBALL Match]*	<<locked>>	86%	45861	89%	**25	94%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	87%	39755	77%	**61	90%
[ADI AR 2208]*	<<locked>>	94%	41901	81%	**71	90%
Accurate 2015	<<locked>>	81%	36201	70%	**50	98%
[Accurate 2230]*	<<locked>>	81%	38580	75%	**76	91%
[Accurate 2460]*	<<locked>>	81%	38058	74%	**86	93%
Accurate 2495	<<locked>>	81%	30400	59%	**38	95%
[Accurate 2520]*	<<locked>>	81%	32010	62%	**55	91%
[Accurate 4064]*	<<locked>>	83%	27325	53%	**14	90%
Alliant AR-Comp	<<locked>>	81%	32024	62%	**14	98%
[Alliant Reloder- TS 15.5]*	<<locked>>	91%	36289	70%	**79	90%
Alliant Reloder-10x	<<locked>>	81%	39871	77%	**71	99%
[Alliant Reloder-15]*	<<locked>>	92%	40901	79%	**01	90%
[Hodgdon BL-C2]*	<<locked>>	84%	35810	70%	**66	90%
[Hodgdon Benchmark]*	<<locked>>	81%	36651	71%	**14	92%
Hodgdon H322	<<locked>>	81%	35752	69%	**73	95%
Hodgdon H335	<<locked>>	81%	42105	82%	**37	96%
Hodgdon TrailBoss	<<locked>>	81%	24816	48%	**15	100%
[IMR 3031]*	<<locked>>	81%	28021	54%	**66	92%
[IMR 4064]*	<<locked>>	94%	40698	79%	**48	90%
IMR 4198	<<locked>>	81%	40973	80%	**81	100%
[IMR 4895]*	<<locked>>	90%	39088	76%	**78	90%
[IMR 8208 XBR]*	<<locked>>	82%	34969	68%	**04	90%
[Lovex D073.4]*	<<locked>>	81%	39900	77%	**32	94%
[Lovex D073.5]*	<<locked>>	81%	37869	74%	**83	93%
[Lovex D073.6]*	<<locked>>	81%	30313	59%	**96	90%
[Lovex S060]*	<<locked>>	86%	39001	76%	**66	90%
[Lovex S062]*	<<locked>>	88%	34911	68%	**07	90%
[Norma 201]*	<<locked>>	84%	34896	68%	**97	90%
[Norma 202]*	<<locked>>	81%	31125	60%	**19	92%
[Norma 203B]*	<<locked>>	91%	39291	76%	**58	90%
[Ramshot Big Game]*	<<locked>>	92%	40944	80%	**94	90%
[Ramshot Wild Boar]*	<<locked>>	86%	39885	77%	**51	90%
[Ramshot X-Terminator]*	<<locked>>	83%	39987	78%	**92	90%
ReloadSwiss RS 14	<<locked>>	81%	24555	48%	**57	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	38682	75%	**25	94%
[ReloadSwiss RS 52]*	<<locked>>	88%	34214	66%	**53	90%
[Rottweil R 901]*	<<locked>>	81%	34911	68%	**97	93%
[Rottweil R 902]*	<<locked>>	86%	35273	69%	**94	90%
[Rottweil R 903]*	<<locked>>	94%	37101	72%	**96	90%
[SNPE Vectan SP 9]*	<<locked>>	88%	39044	76%	**22	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	33562	65%	**02	93%
[SNPE Vectan Tubal 5000]*	<<locked>>	81%	27050	53%	**02	91%
[Shooters World Match Rifle]*	<<locked>>	81%	30313	59%	**96	90%
[Shooters World Precision]*	<<locked>>	88%	34911	68%	**07	90%
[Shooters World Tactical Rifle]*	<<locked>>	81%	40886	79%	**15	92%
[Somchem S321]*	<<locked>>	81%	36463	71%	**60	91%
[Somchem S335]*	<<locked>>	81%	32880	64%	**96	94%
[Somchem S341]*	<<locked>>	87%	39798	77%	**19	90%
[Somchem S355]*	<<locked>>	93%	37101	72%	**92	90%
Vihtavuori N130	<<locked>>	81%	37376	73%	**40	98%
Vihtavuori N133	<<locked>>	81%	31038	60%	**59	95%
[Vihtavuori N135]*	<<locked>>	82%	24323	47%	**76	90%
[Vihtavuori N140]*	<<locked>>	81%	29167	57%	**23	91%
[Vihtavuori N530]*	<<locked>>	81%	35708	69%	**46	91%
[Vihtavuori N540]*	<<locked>>	81%	28877	56%	**23	90%
[Winchester 748]*	<<locked>>	81%	35244	68%	**73	91%
[Winchester StaBALL Match]*	<<locked>>	81%	37913	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.