Load data for .257 Roberts + .257 | 90gr Hornady CX

Recommended Powder(s): Accurate 4064, Lovex D073.6, ReloadSwiss RS 52, ReloadSwiss RS 60, Shooters World Match Rifle

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.257 \| 90gr Hornady CX
Manufacturer SKU:	254104
Bullet Weight:	90gr \| 5.8g
Bullet Diameter:	0.257" \| 6.53mm
Bullet Length:	1.220" \| 31.0mm
Caliber:	.257 Roberts load data
Case Length (l3):	2.233" \| 56.7mm
Cartridge Length (C.O.L.):	2.733" \| 69.4mm
Seated Depth:	0.720" \| 18.3mm
Shank Seated Depth:	0.600" \| 15.2mm
Case Capacity:	56.0 Grains of Water \| 3.64 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	51488 psi \| 3550 bar
LID:	LID_B1364_C241
Last updated:	2025-01-01
Recommended Twist Rate:	1:8 - 1:7

Load data for 144 loads in caliber .257 Roberts with .257 | 90gr Hornady CX bullet and 72 powders such as Accurate 4064, Lovex D073.6, ReloadSwiss RS 52, ReloadSwiss RS 60, Shooters World Match Rifle. 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.

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>>	86%	46093	90%	**25	97%
ADI AR 2208	<<locked>>	91%	46006	89%	**99	96%
Accurate 2200	<<locked>>	84%	45440	88%	**59	95%
Accurate 2495	<<locked>>	85%	45600	89%	**18	100%
Accurate 2520	<<locked>>	84%	45194	88%	**15	99%
Accurate 4064 👍	<<locked>>	91%	45179	88%	**22	100%
[Accurate 4350]*	<<locked>>	97%	41060	80%	**79	94%
Alliant AR-Comp	<<locked>>	85%	45847	89%	**18	100%
Alliant Reloder- TS 15.5	<<locked>>	92%	46093	90%	**35	98%
Alliant Reloder-15	<<locked>>	89%	45411	88%	**28	96%
[Alliant Reloder-16]*	<<locked>>	96%	41147	80%	**79	94%
Alliant Reloder-17	<<locked>>	95%	45527	88%	**20	98%
Baschieri & Pellagri 107	<<locked>>	86%	46006	89%	**31	96%
Hodgdon BL-C2	<<locked>>	84%	45295	88%	**28	98%
Hodgdon Benchmark	<<locked>>	83%	46311	90%	**56	99%
Hodgdon CFE223	<<locked>>	90%	45948	89%	**68	96%
Hodgdon H380	<<locked>>	91%	46093	90%	**28	95%
[Hodgdon H414]*	<<locked>>	95%	45614	89%	**58	92%
Hodgdon Hybrid 100V	<<locked>>	97%	37753	73%	**67	95%
Hodgdon LVR	<<locked>>	97%	45614	89%	**54	95%
Hodgdon VARGET	<<locked>>	92%	46006	89%	**99	96%
Hodgdon TrailBoss	<<locked>>	96%	32619	63%	**13	100%
IMR 3031	<<locked>>	89%	46006	89%	**58	100%
IMR 4064	<<locked>>	91%	45266	88%	**72	96%
[IMR 4166 Enduron]*	<<locked>>	91%	45324	88%	**27	92%
[IMR 4451 Enduron]*	<<locked>>	93%	45484	88%	**63	92%
[IMR 4831]*	<<locked>>	97%	34998	68%	**12	92%
IMR 4895	<<locked>>	88%	45237	88%	**45	97%
IMR 8208 XBR	<<locked>>	84%	45426	88%	**82	98%
Lovex D073.6 👍	<<locked>>	87%	45701	89%	**25	99%
Lovex S060	<<locked>>	86%	45963	89%	**43	97%
Lovex S062	<<locked>>	90%	45948	89%	**05	98%
[Lovex S065]*	<<locked>>	96%	45934	89%	**89	94%
[Lovex S070]*	<<locked>>	97%	44048	86%	**63	92%
Norma 201	<<locked>>	86%	45368	88%	**79	98%
Norma 202	<<locked>>	86%	45397	88%	**89	100%
Norma 203B	<<locked>>	90%	45687	89%	**38	97%
[Norma URP]*	<<locked>>	97%	41350	80%	**79	94%
Ramshot Big Game	<<locked>>	90%	46050	89%	**61	97%
[Ramshot TAC]*	<<locked>>	84%	45513	88%	**66	94%
Ramshot Wild Boar	<<locked>>	85%	46195	90%	**25	97%
ReloadSwiss RS 14	<<locked>>	96%	33098	64%	**59	100%
[ReloadSwiss RS 50]*	<<locked>>	90%	45353	88%	**66	93%
ReloadSwiss RS 52 👍	<<locked>>	91%	45890	89%	**87	99%
ReloadSwiss RS 60 👍	<<locked>>	97%	46224	90%	**43	99%
[ReloadSwiss RS 62]*	<<locked>>	97%	40988	80%	**95	94%
[ReloadSwiss RS 70]*	<<locked>>	97%	42250	82%	**02	93%
Rottweil R 901	<<locked>>	83%	45498	88%	**66	100%
Rottweil R 902	<<locked>>	88%	45194	88%	**66	98%
Rottweil R 903	<<locked>>	94%	45788	89%	**31	98%
SNPE Vectan SP 11	<<locked>>	93%	45730	89%	**58	97%
SNPE Vectan SP 7	<<locked>>	86%	46006	89%	**82	95%
SNPE Vectan SP 9	<<locked>>	87%	46282	90%	**18	97%
SNPE Vectan Tubal 3000	<<locked>>	85%	45585	89%	**10	100%
SNPE Vectan Tubal 5000	<<locked>>	91%	45310	88%	**10	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	97%	46108	90%	**33	92%
[Shooters World Long Rifle]*	<<locked>>	96%	45934	89%	**89	94%
Shooters World Match Rifle 👍	<<locked>>	87%	45701	89%	**25	99%
Shooters World Precision	<<locked>>	90%	45948	89%	**05	98%
Somchem S335	<<locked>>	85%	45411	88%	**23	100%
Somchem S341	<<locked>>	86%	45745	89%	**92	97%
Somchem S355	<<locked>>	93%	46311	90%	**35	98%
Somchem S365	<<locked>>	97%	37275	72%	**17	97%
Vihtavuori N133	<<locked>>	87%	45658	89%	**17	100%
Vihtavuori N135	<<locked>>	95%	45426	88%	**76	100%
Vihtavuori N140	<<locked>>	89%	46238	90%	**89	100%
Vihtavuori N150	<<locked>>	97%	43497	84%	**53	98%
Vihtavuori N160	<<locked>>	97%	45759	89%	**22	95%
Vihtavuori N540	<<locked>>	89%	45759	89%	**02	100%
Vihtavuori N550	<<locked>>	97%	45455	88%	**68	95%
Winchester 6.5 StaBALL	<<locked>>	97%	45150	88%	**76	97%
[Winchester 760]*	<<locked>>	95%	45614	89%	**58	92%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	39247	76%	**74	95%
[ADI AR 2208]*	<<locked>>	81%	33388	65%	**94	92%
[Accurate 2200]*	<<locked>>	81%	41379	80%	**77	94%
Accurate 2495	<<locked>>	81%	39276	76%	**87	100%
Accurate 2520	<<locked>>	81%	40059	78%	**04	99%
Accurate 4064	<<locked>>	81%	33025	64%	**46	98%
[Accurate 4350]*	<<locked>>	90%	31879	62%	**46	90%
Alliant AR-Comp	<<locked>>	81%	40408	78%	**20	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	81%	32387	63%	**17	94%
[Alliant Reloder-15]*	<<locked>>	81%	35128	68%	**82	93%
[Alliant Reloder-16]*	<<locked>>	90%	33649	65%	**69	90%
[Alliant Reloder-17]*	<<locked>>	82%	29573	57%	**80	90%
[Baschieri & Pellagri 107]*	<<locked>>	81%	38247	74%	**58	93%
Hodgdon BL-C2	<<locked>>	81%	40306	78%	**27	97%
Hodgdon Benchmark	<<locked>>	81%	43221	84%	**90	98%
[Hodgdon CFE223]*	<<locked>>	81%	33562	65%	**62	91%
[Hodgdon H380]*	<<locked>>	82%	33852	66%	**40	90%
[Hodgdon H414]*	<<locked>>	91%	40944	80%	**53	90%
[Hodgdon Hybrid 100V]*	<<locked>>	88%	28834	56%	**05	90%
[Hodgdon LVR]*	<<locked>>	88%	34505	67%	**89	90%
[Hodgdon VARGET]*	<<locked>>	81%	33388	65%	**94	92%
Hodgdon TrailBoss	<<locked>>	81%	26020	51%	**55	100%
IMR 3031	<<locked>>	81%	35128	68%	**25	99%
[IMR 4064]*	<<locked>>	81%	32518	63%	**74	92%
[IMR 4166 Enduron]*	<<locked>>	88%	40538	79%	**18	90%
[IMR 4451 Enduron]*	<<locked>>	90%	41597	81%	**77	90%
[IMR 4831]*	<<locked>>	94%	31792	62%	**23	90%
[IMR 4895]*	<<locked>>	81%	35839	70%	**25	94%
IMR 8208 XBR	<<locked>>	81%	41437	80%	**97	97%
Lovex D073.6	<<locked>>	81%	37855	74%	**54	98%
Lovex S060	<<locked>>	81%	40248	78%	**28	96%
Lovex S062	<<locked>>	81%	34896	68%	**56	95%
[Lovex S065]*	<<locked>>	88%	35839	70%	**53	90%
[Lovex S070]*	<<locked>>	93%	39349	76%	**58	90%
Norma 201	<<locked>>	81%	38696	75%	**28	97%
Norma 202	<<locked>>	81%	38464	75%	**48	99%
[Norma 203B]*	<<locked>>	81%	34519	67%	**69	93%
[Norma URP]*	<<locked>>	90%	32895	64%	**53	90%
[Ramshot Big Game]*	<<locked>>	81%	34200	66%	**79	93%
[Ramshot TAC]*	<<locked>>	81%	41742	81%	**84	93%
Ramshot Wild Boar	<<locked>>	81%	40292	78%	**97	95%
ReloadSwiss RS 14	<<locked>>	81%	26484	51%	**04	100%
[ReloadSwiss RS 50]*	<<locked>>	85%	38682	75%	**22	90%
ReloadSwiss RS 52	<<locked>>	81%	32866	64%	**76	95%
[ReloadSwiss RS 60]*	<<locked>>	82%	28877	56%	**48	90%
[ReloadSwiss RS 62]*	<<locked>>	91%	33460	65%	**99	90%
[ReloadSwiss RS 70]*	<<locked>>	93%	37594	73%	**74	90%
Rottweil R 901	<<locked>>	81%	42656	83%	**00	99%
Rottweil R 902	<<locked>>	81%	36680	71%	**79	96%
[Rottweil R 903]*	<<locked>>	81%	29675	58%	**41	92%
[SNPE Vectan SP 11]*	<<locked>>	81%	31111	60%	**94	91%
[SNPE Vectan SP 7]*	<<locked>>	81%	39073	76%	**38	93%
SNPE Vectan SP 9	<<locked>>	81%	37695	73%	**35	95%
SNPE Vectan Tubal 3000	<<locked>>	81%	40422	79%	**05	99%
SNPE Vectan Tubal 5000	<<locked>>	81%	33156	64%	**51	98%
[SNPE Vectan Tubal 7000]*	<<locked>>	92%	39769	77%	**05	90%
[Shooters World Long Rifle]*	<<locked>>	88%	35839	70%	**53	90%
Shooters World Match Rifle	<<locked>>	81%	37855	74%	**54	98%
Shooters World Precision	<<locked>>	81%	34896	68%	**56	95%
Somchem S335	<<locked>>	81%	39755	77%	**05	99%
Somchem S341	<<locked>>	81%	38870	75%	**51	95%
[Somchem S355]*	<<locked>>	81%	31067	60%	**67	93%
[Somchem S365]*	<<locked>>	86%	26411	51%	**75	90%
Vihtavuori N133	<<locked>>	81%	37826	73%	**66	100%
Vihtavuori N135	<<locked>>	81%	30023	58%	**38	98%
Vihtavuori N140	<<locked>>	81%	35781	70%	**69	98%
[Vihtavuori N150]*	<<locked>>	81%	26295	51%	**03	92%
[Vihtavuori N160]*	<<locked>>	87%	32895	64%	**20	90%
Vihtavuori N540	<<locked>>	81%	35534	69%	**79	98%
[Vihtavuori N550]*	<<locked>>	87%	33040	64%	**62	90%
[Winchester 6.5 StaBALL]*	<<locked>>	84%	29095	57%	**66	90%
[Winchester 760]*	<<locked>>	91%	40944	80%	**53	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.