Load data for .257 Roberts + .256 | 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:	.256 \| 52gr \| Peregrine VRG-3
Bullet Weight:	52gr \| 3.4g
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_B8040_C241
Last updated:	2025-01-01
Recommended Twist Rate:	1:19 - 1:16

Load data for 0 loads in caliber .257 Roberts with .256 | 52gr | Peregrine VRG-3 bullet and 0 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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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 2219	<<locked>>	86%	45876	89%	**93	97%
[ADI Benchmark 8208]*	<<locked>>	92%	45382	88%	**14	93%
Accurate 2015 👍	<<locked>>	91%	46253	90%	**47	99%
[Accurate 2230]*	<<locked>>	89%	46050	89%	**01	93%
Accurate 2460	<<locked>>	89%	46093	90%	**20	95%
Accurate 2495 👍	<<locked>>	96%	45484	88%	**99	99%
Accurate 2520	<<locked>>	94%	45252	88%	**63	95%
[Accurate 4064]*	<<locked>>	96%	38014	74%	**86	94%
Alliant AR-Comp 👍	<<locked>>	95%	45788	89%	**35	100%
Alliant Reloder-10x 👍	<<locked>>	88%	46064	89%	**83	99%
Baschieri & Pellagri 106	<<locked>>	86%	46296	90%	**52	98%
[Hodgdon BL-C2]*	<<locked>>	94%	46311	90%	**89	93%
[Hodgdon Benchmark]*	<<locked>>	91%	45759	89%	**78	94%
Hodgdon H322	<<locked>>	91%	45876	89%	**93	97%
Hodgdon H335	<<locked>>	86%	46079	89%	**76	96%
Hodgdon H4198	<<locked>>	84%	45701	89%	**91	97%
[Hodgdon H4895]*	<<locked>>	94%	45556	88%	**60	92%
Hodgdon TrailBoss	<<locked>>	96%	30385	59%	**10	100%
IMR 3031	<<locked>>	97%	41916	81%	**43	97%
IMR 4198 👍	<<locked>>	87%	45890	89%	**50	100%
[IMR 8208 XBR]*	<<locked>>	92%	45382	88%	**14	93%
[Lovex D073.4]*	<<locked>>	87%	45687	89%	**01	94%
[Lovex D073.5]*	<<locked>>	89%	45527	88%	**11	94%
Lovex D073.6	<<locked>>	96%	45252	88%	**63	95%
[Lovex S062]*	<<locked>>	97%	42250	82%	**52	92%
Norma 200	<<locked>>	84%	45339	88%	**34	100%
[Norma 201]*	<<locked>>	96%	46224	90%	**43	93%
Norma 202	<<locked>>	96%	46079	90%	**73	96%
ReloadSwiss RS 14	<<locked>>	96%	30255	59%	**66	100%
ReloadSwiss RS 40	<<locked>>	89%	46209	90%	**60	95%
Rottweil R 901	<<locked>>	93%	45745	89%	**40	96%
[Rottweil R 902]*	<<locked>>	97%	44425	86%	**75	93%
SNPE Vectan SP 10	<<locked>>	85%	45527	88%	**63	96%
[SNPE Vectan SP 9]*	<<locked>>	96%	46296	90%	**40	91%
SNPE Vectan Tubal 3000	<<locked>>	94%	46137	90%	**75	96%
SNPE Vectan Tubal 5000	<<locked>>	96%	40350	78%	**37	96%
Shooters World Match Rifle	<<locked>>	96%	45252	88%	**63	95%
[Shooters World Precision]*	<<locked>>	97%	42250	82%	**52	92%
[Shooters World Tactical Rifle]*	<<locked>>	87%	46253	90%	**88	93%
[Somchem S321]*	<<locked>>	90%	46151	90%	**50	94%
Somchem S335	<<locked>>	94%	46166	90%	**94	97%
Vihtavuori N120	<<locked>>	85%	45513	88%	**81	100%
Vihtavuori N130	<<locked>>	90%	46006	89%	**94	99%
Vihtavuori N133	<<locked>>	97%	46253	90%	**04	99%
Vihtavuori N135	<<locked>>	96%	34548	67%	**78	95%
Vihtavuori N140	<<locked>>	97%	44193	86%	**81	96%
[Vihtavuori N530]*	<<locked>>	91%	45745	89%	**53	93%
Vihtavuori N540	<<locked>>	96%	44121	86%	**07	96%
[Winchester 748]*	<<locked>>	91%	45658	89%	**80	94%
[Winchester StaBALL Match]*	<<locked>>	89%	46166	90%	**57	92%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2219	<<locked>>	81%	38580	75%	**99	95%
[ADI Benchmark 8208]*	<<locked>>	87%	38232	74%	**24	90%
Accurate 2015	<<locked>>	81%	32343	63%	**79	95%
[Accurate 2230]*	<<locked>>	85%	40205	78%	**56	90%
[Accurate 2460]*	<<locked>>	82%	35447	69%	**42	90%
[Accurate 2495]*	<<locked>>	81%	26092	51%	**22	91%
[Accurate 2520]*	<<locked>>	85%	32924	64%	**19	90%
[Accurate 4064]*	<<locked>>	89%	29530	57%	**27	90%
Alliant AR-Comp	<<locked>>	81%	28442	55%	**20	96%
Alliant Reloder-10x	<<locked>>	81%	35969	70%	**24	97%
Baschieri & Pellagri 106	<<locked>>	81%	39378	76%	**88	96%
[Hodgdon BL-C2]*	<<locked>>	89%	38856	75%	**89	90%
[Hodgdon Benchmark]*	<<locked>>	84%	36289	70%	**25	90%
[Hodgdon H322]*	<<locked>>	81%	32271	63%	**92	92%
[Hodgdon H335]*	<<locked>>	81%	37942	74%	**56	93%
Hodgdon H4198	<<locked>>	81%	41945	81%	**86	96%
[Hodgdon H4895]*	<<locked>>	91%	40959	80%	**32	90%
Hodgdon TrailBoss	<<locked>>	81%	23931	46%	**13	100%
[IMR 3031]*	<<locked>>	84%	27905	54%	**91	90%
IMR 4198	<<locked>>	81%	37405	73%	**27	98%
[IMR 8208 XBR]*	<<locked>>	87%	38232	74%	**24	90%
[Lovex D073.4]*	<<locked>>	81%	35621	69%	**32	90%
[Lovex D073.5]*	<<locked>>	82%	34983	68%	**28	90%
[Lovex D073.6]*	<<locked>>	87%	32924	64%	**19	90%
[Lovex S062]*	<<locked>>	93%	37739	73%	**24	90%
Norma 200	<<locked>>	81%	40828	79%	**25	99%
[Norma 201]*	<<locked>>	90%	38043	74%	**24	90%
[Norma 202]*	<<locked>>	84%	30937	60%	**43	90%
ReloadSwiss RS 14	<<locked>>	81%	23888	46%	**72	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	34969	68%	**48	91%
[Rottweil R 901]*	<<locked>>	82%	31720	62%	**37	90%
[Rottweil R 902]*	<<locked>>	92%	38247	74%	**10	90%
[SNPE Vectan SP 10]*	<<locked>>	81%	39001	76%	**83	94%
[SNPE Vectan SP 9]*	<<locked>>	93%	42612	83%	**52	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	82%	30850	60%	**51	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	86%	28543	55%	**69	90%
[Shooters World Match Rifle]*	<<locked>>	87%	32924	64%	**19	90%
[Shooters World Precision]*	<<locked>>	93%	37739	73%	**24	90%
[Shooters World Tactical Rifle]*	<<locked>>	83%	39639	77%	**20	90%
[Somchem S321]*	<<locked>>	84%	37333	73%	**07	90%
[Somchem S335]*	<<locked>>	81%	29443	57%	**19	91%
Vihtavuori N120	<<locked>>	81%	39798	77%	**63	100%
Vihtavuori N130	<<locked>>	81%	33779	66%	**89	96%
[Vihtavuori N133]*	<<locked>>	81%	27804	54%	**73	92%
[Vihtavuori N135]*	<<locked>>	88%	26208	51%	**69	90%
[Vihtavuori N140]*	<<locked>>	86%	30458	59%	**87	90%
[Vihtavuori N530]*	<<locked>>	86%	38406	75%	**47	90%
[Vihtavuori N540]*	<<locked>>	86%	31256	61%	**33	90%
[Winchester 748]*	<<locked>>	84%	36158	70%	**17	90%
[Winchester StaBALL Match]*	<<locked>>	85%	40553	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.

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