Load data for .257 Roberts + .257 | 87gr | Speer Spitzer Soft Point

Recommended Powder(s): Lovex S062, ReloadSwiss RS 52, ReloadSwiss RS 60, Shooters World Precision

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.257 \| 87gr \| Speer Spitzer Soft Point
Manufacturer SKU:	1241
Bullet Weight:	87gr \| 5.6g
Bullet Diameter:	0.257" \| 6.53mm
Bullet Length:	0.820" \| 20.8mm
Caliber:	.257 Roberts load data
Case Length (l3):	2.233" \| 56.7mm
Cartridge Length (C.O.L.):	2.733" \| 69.4mm
Seated Depth:	0.320" \| 8.1mm
Shank Seated Depth:	0.320" \| 8.1mm
Case Capacity:	56.0 Grains of Water \| 3.64 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	51488 psi \| 3550 bar
LID:	LID_B6087_C241
Last updated:	2025-02-02

Load data for 136 loads in caliber .257 Roberts with .257 | 87gr | Speer Spitzer Soft Point bullet and 68 powders such as Lovex S062, ReloadSwiss RS 52, ReloadSwiss RS 60, Shooters World Precision. 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 "Dashboard " page to set the measure system (imperial vs. metric)
Muzzle velocity vs. barrel length
Every 1 inch additional barrel length increases muzzle velocity by approx. 36.1 fps
C.O.L. (Inch)
C.O.L. (mm)
We recommend you limit powder range to relevant brands to speed up re-calculation of results
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>>	84%	46282	90%	**10	98%
ADI AR 2208	<<locked>>	89%	46122	90%	**81	97%
[Accurate 2700]*	<<locked>>	90%	46340	90%	**95	92%
Accurate 4064	<<locked>>	88%	45658	89%	**94	100%
Accurate 4350	<<locked>>	97%	45266	88%	**36	96%
Alliant Reloder- TS 15.5	<<locked>>	89%	45818	89%	**07	98%
Alliant Reloder-15	<<locked>>	87%	45992	89%	**23	97%
Alliant Reloder-16	<<locked>>	97%	45179	88%	**53	96%
Alliant Reloder-17	<<locked>>	93%	45513	88%	**96	98%
[Alliant Reloder-23]*	<<locked>>	97%	31981	62%	**22	92%
Baschieri & Pellagri 107	<<locked>>	84%	46006	89%	**17	96%
Hodgdon CFE223	<<locked>>	87%	45818	89%	**50	96%
Hodgdon H380	<<locked>>	89%	46137	90%	**07	96%
[Hodgdon H414]*	<<locked>>	92%	45701	89%	**36	93%
Hodgdon Hybrid 100V	<<locked>>	97%	40988	80%	**22	97%
Hodgdon LVR	<<locked>>	95%	46296	90%	**50	95%
[Hodgdon Superperformance]*	<<locked>>	94%	46035	89%	**43	92%
Hodgdon VARGET	<<locked>>	89%	46122	90%	**81	97%
Hodgdon TrailBoss	<<locked>>	96%	32996	64%	**95	100%
IMR 3031	<<locked>>	86%	45600	89%	**20	100%
IMR 4064	<<locked>>	89%	45426	88%	**58	97%
[IMR 4166 Enduron]*	<<locked>>	90%	46151	90%	**38	93%
[IMR 4350]*	<<locked>>	96%	46006	89%	**71	92%
[IMR 4451 Enduron]*	<<locked>>	91%	45643	89%	**45	92%
[IMR 4831]*	<<locked>>	96%	38377	75%	**69	94%
IMR 4895	<<locked>>	86%	46180	90%	**36	98%
Lovex D073.6	<<locked>>	84%	45498	88%	**94	100%
Lovex S062 👍	<<locked>>	88%	46238	90%	**94	99%
[Lovex S065]*	<<locked>>	93%	45426	88%	**54	94%
[Lovex S070]*	<<locked>>	95%	46006	89%	**84	93%
Norma 201	<<locked>>	84%	45890	89%	**71	99%
Norma 202	<<locked>>	84%	45527	88%	**71	100%
Norma 203B	<<locked>>	87%	45513	88%	**04	97%
Norma URP	<<locked>>	97%	45353	88%	**43	96%
Ramshot Big Game	<<locked>>	87%	45382	88%	**23	97%
[Ramshot Hunter]*	<<locked>>	97%	44657	87%	**20	93%
ReloadSwiss RS 14	<<locked>>	96%	33373	65%	**44	100%
[ReloadSwiss RS 50]*	<<locked>>	88%	45832	89%	**58	94%
ReloadSwiss RS 52 👍	<<locked>>	88%	45832	89%	**59	99%
ReloadSwiss RS 60 👍	<<locked>>	94%	46079	90%	**32	99%
ReloadSwiss RS 62	<<locked>>	97%	45136	88%	**59	96%
ReloadSwiss RS 70	<<locked>>	97%	46093	90%	**82	95%
Rottweil R 902	<<locked>>	86%	45788	89%	**58	99%
Rottweil R 903	<<locked>>	91%	46282	90%	**23	98%
[Rottweil R 907]*	<<locked>>	92%	45658	89%	**51	92%
SNPE Vectan SP 11	<<locked>>	90%	46325	90%	**56	98%
SNPE Vectan SP 7	<<locked>>	83%	46340	90%	**74	96%
SNPE Vectan SP 9	<<locked>>	85%	46282	90%	**04	98%
SNPE Vectan Tubal 3000	<<locked>>	83%	45759	89%	**99	100%
SNPE Vectan Tubal 5000	<<locked>>	89%	45992	89%	**02	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	94%	45876	89%	**05	93%
[Shooters World Long Rifle]*	<<locked>>	93%	45426	88%	**54	94%
Shooters World Match Rifle	<<locked>>	84%	45498	88%	**94	100%
Shooters World Precision 👍	<<locked>>	88%	46238	90%	**94	99%
Somchem S335	<<locked>>	84%	46079	90%	**09	100%
Somchem S341	<<locked>>	83%	46122	90%	**74	97%
Somchem S355	<<locked>>	91%	46093	90%	**00	98%
Somchem S365	<<locked>>	96%	40089	78%	**64	98%
Vihtavuori N133	<<locked>>	85%	45643	89%	**02	100%
Vihtavuori N135	<<locked>>	92%	46253	90%	**64	100%
Vihtavuori N140	<<locked>>	86%	46296	90%	**64	100%
Vihtavuori N150	<<locked>>	96%	45440	88%	**58	99%
Vihtavuori N160	<<locked>>	94%	45469	88%	**94	96%
Vihtavuori N540	<<locked>>	86%	45498	88%	**74	100%
Vihtavuori N550	<<locked>>	94%	46311	90%	**56	96%
[Vihtavuori N555]*	<<locked>>	97%	34171	66%	**17	93%
Winchester 6.5 StaBALL	<<locked>>	95%	45745	89%	**74	98%
[Winchester 760]*	<<locked>>	92%	45701	89%	**36	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	42482	82%	**18	97%
[ADI AR 2208]*	<<locked>>	81%	35795	70%	**38	93%
[Accurate 2700]*	<<locked>>	87%	41742	81%	**04	90%
Accurate 4064	<<locked>>	81%	36013	70%	**81	99%
[Accurate 4350]*	<<locked>>	86%	31227	61%	**89	90%
Alliant Reloder- TS 15.5	<<locked>>	81%	35418	69%	**71	95%
Alliant Reloder-15	<<locked>>	81%	38101	74%	**40	95%
[Alliant Reloder-16]*	<<locked>>	86%	32460	63%	**15	90%
[Alliant Reloder-17]*	<<locked>>	81%	30618	59%	**92	92%
[Alliant Reloder-23]*	<<locked>>	94%	29544	57%	**40	90%
Baschieri & Pellagri 107	<<locked>>	81%	41568	81%	**18	95%
[Hodgdon CFE223]*	<<locked>>	81%	36463	71%	**13	93%
[Hodgdon H380]*	<<locked>>	81%	35723	69%	**61	92%
[Hodgdon H414]*	<<locked>>	88%	39508	77%	**89	90%
[Hodgdon Hybrid 100V]*	<<locked>>	84%	27992	54%	**51	90%
[Hodgdon LVR]*	<<locked>>	85%	33794	66%	**35	90%
[Hodgdon Superperformance]*	<<locked>>	92%	42134	82%	**58	90%
[Hodgdon VARGET]*	<<locked>>	81%	35795	70%	**38	93%
Hodgdon TrailBoss	<<locked>>	81%	26179	51%	**34	100%
IMR 3031	<<locked>>	81%	38087	74%	**66	100%
[IMR 4064]*	<<locked>>	81%	35157	68%	**22	94%
[IMR 4166 Enduron]*	<<locked>>	84%	39160	76%	**74	90%
[IMR 4350]*	<<locked>>	93%	41524	81%	**72	90%
[IMR 4451 Enduron]*	<<locked>>	86%	39421	77%	**04	90%
[IMR 4831]*	<<locked>>	90%	30966	60%	**69	90%
IMR 4895	<<locked>>	81%	39059	76%	**72	96%
Lovex D073.6	<<locked>>	81%	40799	79%	**99	99%
Lovex S062	<<locked>>	81%	37521	73%	**87	97%
[Lovex S065]*	<<locked>>	85%	34722	67%	**99	90%
[Lovex S070]*	<<locked>>	90%	38725	75%	**17	90%
Norma 201	<<locked>>	81%	41350	80%	**76	98%
Norma 202	<<locked>>	81%	41756	81%	**95	99%
Norma 203B	<<locked>>	81%	37623	73%	**30	95%
[Norma URP]*	<<locked>>	86%	32271	63%	**05	90%
Ramshot Big Game	<<locked>>	81%	37028	72%	**30	95%
[Ramshot Hunter]*	<<locked>>	91%	37202	72%	**36	90%
ReloadSwiss RS 14	<<locked>>	81%	26600	52%	**80	100%
[ReloadSwiss RS 50]*	<<locked>>	82%	37202	72%	**64	90%
ReloadSwiss RS 52	<<locked>>	81%	35940	70%	**30	97%
[ReloadSwiss RS 60]*	<<locked>>	81%	29733	58%	**56	92%
[ReloadSwiss RS 62]*	<<locked>>	87%	32677	63%	**48	90%
[ReloadSwiss RS 70]*	<<locked>>	89%	36042	70%	**20	90%
Rottweil R 902	<<locked>>	81%	39581	77%	**20	97%
[Rottweil R 903]*	<<locked>>	81%	32590	63%	**89	94%
[Rottweil R 907]*	<<locked>>	89%	40988	80%	**46	90%
[SNPE Vectan SP 11]*	<<locked>>	81%	33736	66%	**44	93%
[SNPE Vectan SP 7]*	<<locked>>	81%	42728	83%	**99	94%
SNPE Vectan SP 9	<<locked>>	81%	40901	79%	**82	96%
SNPE Vectan Tubal 3000	<<locked>>	81%	43062	84%	**46	100%
SNPE Vectan Tubal 5000	<<locked>>	81%	35433	69%	**76	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	89%	38493	75%	**54	90%
[Shooters World Long Rifle]*	<<locked>>	85%	34722	67%	**99	90%
Shooters World Match Rifle	<<locked>>	81%	40799	79%	**99	99%
Shooters World Precision	<<locked>>	81%	37521	73%	**87	97%
Somchem S335	<<locked>>	81%	42351	82%	**33	100%
Somchem S341	<<locked>>	81%	42453	82%	**02	97%
[Somchem S355]*	<<locked>>	81%	33489	65%	**99	94%
[Somchem S365]*	<<locked>>	83%	25730	50%	**25	90%
Vihtavuori N133	<<locked>>	81%	40234	78%	**87	100%
Vihtavuori N135	<<locked>>	81%	32387	63%	**59	99%
Vihtavuori N140	<<locked>>	81%	38943	76%	**04	99%
[Vihtavuori N150]*	<<locked>>	81%	28718	56%	**44	94%
[Vihtavuori N160]*	<<locked>>	84%	32242	63%	**72	90%
Vihtavuori N540	<<locked>>	81%	38348	74%	**20	99%
[Vihtavuori N550]*	<<locked>>	83%	32343	63%	**05	90%
[Vihtavuori N555]*	<<locked>>	93%	30037	58%	**92	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	28834	56%	**28	91%
[Winchester 760]*	<<locked>>	88%	39508	77%	**89	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