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:	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_B8040_C241
Last updated:	2025-01-01
Recommended Twist Rate:	1:19 - 1:16

Load data for 96 loads in caliber .257 Roberts with .256 | 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".

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 2219	<<locked>>	85%	45861	89%	**86	97%
Accurate 2015 👍	<<locked>>	90%	45440	88%	**30	99%
[Accurate 2230]*	<<locked>>	88%	45890	89%	**91	92%
Accurate 2460	<<locked>>	89%	46325	90%	**24	95%
Accurate 2495 👍	<<locked>>	95%	45861	89%	**22	99%
Accurate 2520	<<locked>>	93%	45542	88%	**66	95%
Accurate 4064	<<locked>>	96%	39494	77%	**22	95%
Alliant AR-Comp 👍	<<locked>>	94%	45977	89%	**35	100%
Alliant Reloder-10x 👍	<<locked>>	88%	45818	89%	**70	99%
Baschieri & Pellagri 106	<<locked>>	85%	46122	90%	**45	98%
[Hodgdon BL-C2]*	<<locked>>	93%	46209	90%	**83	93%
[Hodgdon Benchmark]*	<<locked>>	90%	45614	89%	**68	94%
Hodgdon H322	<<locked>>	91%	45861	89%	**86	97%
Hodgdon H335	<<locked>>	86%	46122	90%	**57	96%
Hodgdon TrailBoss	<<locked>>	96%	30676	60%	**13	100%
IMR 3031	<<locked>>	97%	42612	83%	**66	97%
IMR 4198	<<locked>>	87%	45629	89%	**40	100%
[IMR 8208 XBR]*	<<locked>>	92%	45426	88%	**14	93%
[Lovex D073.4]*	<<locked>>	87%	45498	88%	**91	94%
[Lovex D073.5]*	<<locked>>	88%	45730	89%	**11	94%
Lovex D073.6	<<locked>>	95%	45542	88%	**66	95%
[Lovex S062]*	<<locked>>	97%	43337	84%	**68	92%
Norma 200	<<locked>>	84%	45788	89%	**37	100%
[Norma 201]*	<<locked>>	94%	45310	88%	**04	93%
Norma 202	<<locked>>	95%	45919	89%	**63	96%
ReloadSwiss RS 14	<<locked>>	96%	30632	59%	**69	100%
ReloadSwiss RS 40	<<locked>>	88%	46238	90%	**57	95%
[ReloadSwiss RS 52]*	<<locked>>	97%	42206	82%	**11	92%
Rottweil R 901	<<locked>>	92%	46050	89%	**40	96%
[Rottweil R 902]*	<<locked>>	97%	45716	89%	**11	93%
SNPE Vectan SP 10	<<locked>>	85%	46209	90%	**63	96%
[SNPE Vectan SP 9]*	<<locked>>	95%	46209	90%	**34	91%
SNPE Vectan Tubal 3000	<<locked>>	93%	46151	90%	**71	96%
SNPE Vectan Tubal 5000	<<locked>>	96%	41350	80%	**50	96%
Shooters World Match Rifle	<<locked>>	95%	45542	88%	**66	95%
[Shooters World Precision]*	<<locked>>	97%	43337	84%	**68	92%
[Shooters World Tactical Rifle]*	<<locked>>	86%	46093	90%	**78	93%
[Somchem S321]*	<<locked>>	90%	46209	90%	**50	94%
Somchem S335	<<locked>>	94%	46021	89%	**84	97%
Vihtavuori N120	<<locked>>	84%	45556	88%	**78	100%
Vihtavuori N130	<<locked>>	90%	45788	89%	**01	99%
Vihtavuori N133	<<locked>>	96%	46238	90%	**01	99%
Vihtavuori N135	<<locked>>	96%	35476	69%	**94	96%
Vihtavuori N140	<<locked>>	97%	45092	88%	**07	97%
[Vihtavuori N530]*	<<locked>>	90%	45759	89%	**47	93%
Vihtavuori N540	<<locked>>	96%	44991	87%	**14	96%
[Winchester 748]*	<<locked>>	90%	45759	89%	**80	94%
[Winchester StaBALL Match]*	<<locked>>	88%	46079	89%	**53	92%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2219	<<locked>>	81%	39494	77%	**12	95%
Accurate 2015	<<locked>>	81%	33315	65%	**02	95%
[Accurate 2230]*	<<locked>>	84%	40393	78%	**56	90%
[Accurate 2460]*	<<locked>>	81%	35099	68%	**25	90%
[Accurate 2495]*	<<locked>>	81%	27354	53%	**71	92%
[Accurate 2520]*	<<locked>>	85%	33228	65%	**25	90%
[Accurate 4064]*	<<locked>>	89%	30356	59%	**40	90%
Alliant AR-Comp	<<locked>>	81%	29428	57%	**53	96%
Alliant Reloder-10x	<<locked>>	81%	36840	72%	**37	97%
Baschieri & Pellagri 106	<<locked>>	81%	40161	78%	**94	96%
[Hodgdon BL-C2]*	<<locked>>	88%	38174	74%	**73	90%
[Hodgdon Benchmark]*	<<locked>>	83%	36390	71%	**22	90%
[Hodgdon H322]*	<<locked>>	81%	33054	64%	**22	92%
[Hodgdon H335]*	<<locked>>	81%	38856	75%	**86	94%
Hodgdon TrailBoss	<<locked>>	81%	24279	47%	**23	100%
[IMR 3031]*	<<locked>>	84%	28239	55%	**97	90%
IMR 4198	<<locked>>	81%	38174	74%	**50	99%
[IMR 8208 XBR]*	<<locked>>	87%	38392	75%	**24	90%
[Lovex D073.4]*	<<locked>>	81%	36709	71%	**71	91%
[Lovex D073.5]*	<<locked>>	81%	35433	69%	**35	90%
[Lovex D073.6]*	<<locked>>	87%	33228	65%	**25	90%
[Lovex S062]*	<<locked>>	93%	38072	74%	**30	90%
Norma 200	<<locked>>	81%	41989	82%	**61	99%
[Norma 201]*	<<locked>>	89%	38363	75%	**27	90%
[Norma 202]*	<<locked>>	83%	31169	61%	**43	90%
ReloadSwiss RS 14	<<locked>>	81%	24265	47%	**75	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	35940	70%	**65	91%
[ReloadSwiss RS 52]*	<<locked>>	94%	38203	74%	**99	91%
[Rottweil R 901]*	<<locked>>	81%	32401	63%	**50	90%
[Rottweil R 902]*	<<locked>>	91%	38551	75%	**14	90%
[SNPE Vectan SP 10]*	<<locked>>	81%	39929	78%	**12	94%
[SNPE Vectan SP 9]*	<<locked>>	93%	42511	83%	**45	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	31154	61%	**55	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	85%	28631	56%	**66	90%
[Shooters World Match Rifle]*	<<locked>>	87%	33228	65%	**25	90%
[Shooters World Precision]*	<<locked>>	93%	38072	74%	**30	90%
[Shooters World Tactical Rifle]*	<<locked>>	82%	39798	77%	**20	90%
[Somchem S321]*	<<locked>>	84%	37536	73%	**10	90%
[Somchem S335]*	<<locked>>	81%	30443	59%	**45	91%
Vihtavuori N120	<<locked>>	81%	40814	79%	**76	100%
Vihtavuori N130	<<locked>>	81%	34693	67%	**06	97%
[Vihtavuori N133]*	<<locked>>	81%	28718	56%	**12	93%
[Vihtavuori N135]*	<<locked>>	87%	26629	52%	**79	90%
[Vihtavuori N140]*	<<locked>>	85%	30690	60%	**91	90%
[Vihtavuori N530]*	<<locked>>	85%	37768	73%	**30	90%
[Vihtavuori N540]*	<<locked>>	86%	31401	61%	**33	90%
[Winchester 748]*	<<locked>>	84%	36361	71%	**20	90%
[Winchester StaBALL Match]*	<<locked>>	85%	40799	79%	**19	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.