Load data for .257 Roberts + .257 | 52gr | Peregrine VRG-3

Recommended Powder(s): Accurate 2015, Accurate 2495, Alliant AR-Comp, Alliant Reloder-10x

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.257 \| 52gr \| Peregrine VRG-3
Bullet Weight:	52gr \| 3.4g
Bullet Diameter:	0.257" \| 6.53mm
Bullet Length:	0.571" \| 14.5mm
Caliber:	.257 Roberts load data
Case Length (l3):	2.233" \| 56.7mm
Cartridge Length (C.O.L.):	2.584" \| 65.6mm
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_B8042_C241
Last updated:	2025-01-01
Recommended Twist Rate:	1:19 - 1:16

Load data for 96 loads in caliber .257 Roberts with .257 | 52gr | Peregrine VRG-3 bullet and 48 powders such as Accurate 2015, Accurate 2495, Alliant AR-Comp, Alliant Reloder-10x. 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. (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 2219	<<locked>>	85%	45905	89%	**89	97%
Accurate 2015 👍	<<locked>>	90%	45484	88%	**30	99%
[Accurate 2230]*	<<locked>>	88%	45934	89%	**94	92%
[Accurate 2460]*	<<locked>>	88%	45426	88%	**11	94%
Accurate 2495 👍	<<locked>>	95%	45934	89%	**06	99%
Accurate 2520	<<locked>>	93%	45614	89%	**53	95%
Accurate 4064	<<locked>>	96%	39552	77%	**25	95%
Alliant AR-Comp 👍	<<locked>>	94%	45832	89%	**32	100%
Alliant Reloder-10x 👍	<<locked>>	88%	45876	89%	**70	99%
Baschieri & Pellagri 106	<<locked>>	85%	46006	89%	**42	98%
[Hodgdon BL-C2]*	<<locked>>	93%	46267	90%	**86	93%
[Hodgdon Benchmark]*	<<locked>>	90%	45658	89%	**71	94%
Hodgdon H322	<<locked>>	91%	45905	89%	**89	97%
Hodgdon H335	<<locked>>	86%	46180	90%	**60	96%
Hodgdon TrailBoss	<<locked>>	96%	30690	60%	**13	100%
IMR 3031	<<locked>>	97%	42670	83%	**70	97%
IMR 4198	<<locked>>	87%	45513	88%	**37	100%
[IMR 8208 XBR]*	<<locked>>	92%	46296	90%	**43	93%
[Lovex D073.4]*	<<locked>>	87%	45556	88%	**91	94%
[Lovex D073.5]*	<<locked>>	89%	45788	89%	**14	94%
Lovex D073.6	<<locked>>	96%	45948	89%	**73	96%
[Lovex S062]*	<<locked>>	97%	43395	84%	**71	92%
Norma 200	<<locked>>	84%	45847	89%	**40	100%
[Norma 201]*	<<locked>>	95%	45368	88%	**07	93%
Norma 202	<<locked>>	95%	45963	89%	**66	96%
ReloadSwiss RS 14	<<locked>>	95%	30197	59%	**56	100%
ReloadSwiss RS 40	<<locked>>	89%	46282	90%	**40	95%
[ReloadSwiss RS 52]*	<<locked>>	97%	42264	82%	**14	92%
Rottweil R 901	<<locked>>	92%	46108	90%	**43	96%
[Rottweil R 902]*	<<locked>>	97%	45571	89%	**07	93%
SNPE Vectan SP 10	<<locked>>	85%	46253	90%	**66	96%
[SNPE Vectan SP 9]*	<<locked>>	95%	46267	90%	**37	91%
SNPE Vectan Tubal 3000	<<locked>>	93%	46209	90%	**75	96%
SNPE Vectan Tubal 5000	<<locked>>	96%	41408	80%	**53	96%
Shooters World Match Rifle	<<locked>>	96%	45948	89%	**73	96%
[Shooters World Precision]*	<<locked>>	97%	43395	84%	**71	92%
[Shooters World Tactical Rifle]*	<<locked>>	86%	46137	90%	**81	93%
[Somchem S321]*	<<locked>>	90%	46267	90%	**53	94%
Somchem S335	<<locked>>	94%	46079	89%	**88	97%
Vihtavuori N120	<<locked>>	84%	45614	89%	**78	100%
Vihtavuori N130	<<locked>>	90%	45832	89%	**88	99%
Vihtavuori N133	<<locked>>	96%	46282	90%	**01	99%
Vihtavuori N135	<<locked>>	97%	35824	70%	**04	96%
Vihtavuori N140	<<locked>>	97%	45136	88%	**11	97%
[Vihtavuori N530]*	<<locked>>	90%	45818	89%	**50	93%
Vihtavuori N540	<<locked>>	96%	45049	87%	**17	96%
[Winchester 748]*	<<locked>>	90%	45818	89%	**80	94%
[Winchester StaBALL Match]*	<<locked>>	88%	46137	90%	**53	92%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2219	<<locked>>	81%	39537	77%	**12	95%
Accurate 2015	<<locked>>	81%	33359	65%	**06	95%
[Accurate 2230]*	<<locked>>	85%	40451	79%	**60	90%
[Accurate 2460]*	<<locked>>	81%	34983	68%	**22	90%
[Accurate 2495]*	<<locked>>	81%	27383	53%	**58	92%
[Accurate 2520]*	<<locked>>	85%	33272	65%	**28	90%
[Accurate 4064]*	<<locked>>	89%	30414	59%	**43	90%
Alliant AR-Comp	<<locked>>	81%	29457	57%	**53	96%
Alliant Reloder-10x	<<locked>>	81%	36883	72%	**40	97%
Baschieri & Pellagri 106	<<locked>>	81%	40059	78%	**91	96%
[Hodgdon BL-C2]*	<<locked>>	88%	38232	74%	**76	90%
[Hodgdon Benchmark]*	<<locked>>	83%	36419	71%	**25	90%
[Hodgdon H322]*	<<locked>>	81%	33098	64%	**25	92%
[Hodgdon H335]*	<<locked>>	81%	38899	76%	**73	94%
Hodgdon TrailBoss	<<locked>>	81%	24294	47%	**16	100%
[IMR 3031]*	<<locked>>	84%	28268	55%	**97	90%
IMR 4198	<<locked>>	81%	38218	74%	**53	99%
[IMR 8208 XBR]*	<<locked>>	87%	38435	75%	**27	90%
[Lovex D073.4]*	<<locked>>	81%	36767	71%	**58	91%
[Lovex D073.5]*	<<locked>>	81%	35302	69%	**32	90%
[Lovex D073.6]*	<<locked>>	86%	32982	64%	**19	90%
[Lovex S062]*	<<locked>>	93%	38116	74%	**30	90%
Norma 200	<<locked>>	81%	42047	82%	**61	99%
[Norma 201]*	<<locked>>	89%	38421	75%	**30	90%
[Norma 202]*	<<locked>>	83%	31212	61%	**46	90%
ReloadSwiss RS 14	<<locked>>	81%	23989	47%	**59	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	35839	70%	**61	91%
[ReloadSwiss RS 52]*	<<locked>>	94%	38072	74%	**96	90%
[Rottweil R 901]*	<<locked>>	81%	32155	62%	**43	90%
[Rottweil R 902]*	<<locked>>	91%	38595	75%	**17	90%
[SNPE Vectan SP 10]*	<<locked>>	81%	39958	78%	**15	94%
[SNPE Vectan SP 9]*	<<locked>>	93%	42569	83%	**48	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	31198	61%	**55	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	85%	28660	56%	**69	90%
[Shooters World Match Rifle]*	<<locked>>	86%	32982	64%	**19	90%
[Shooters World Precision]*	<<locked>>	93%	38116	74%	**30	90%
[Shooters World Tactical Rifle]*	<<locked>>	82%	39842	77%	**24	90%
[Somchem S321]*	<<locked>>	84%	37579	73%	**10	90%
[Somchem S335]*	<<locked>>	81%	30487	59%	**48	91%
Vihtavuori N120	<<locked>>	81%	40857	79%	**76	100%
Vihtavuori N130	<<locked>>	81%	34737	67%	**09	97%
[Vihtavuori N133]*	<<locked>>	81%	28747	56%	**99	92%
[Vihtavuori N135]*	<<locked>>	87%	26266	51%	**66	90%
[Vihtavuori N140]*	<<locked>>	84%	30081	58%	**74	90%
[Vihtavuori N530]*	<<locked>>	85%	37811	73%	**33	90%
[Vihtavuori N540]*	<<locked>>	86%	31430	61%	**37	90%
[Winchester 748]*	<<locked>>	84%	36245	70%	**17	90%
[Winchester StaBALL Match]*	<<locked>>	85%	40669	79%	**15	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.