Load data for .257 Roberts + .257 | 60gr | Hornady InterLock FP

Recommended Powder(s): Accurate 2495, Hodgdon H322, IMR 3031

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.257 \| 60gr \| Hornady InterLock FP
Manufacturer SKU:	2510
Bullet Weight:	60gr \| 3.9g
Bullet Diameter:	0.257" \| 6.53mm
Bullet Length:	0.505" \| 12.8mm
Caliber:	.257 Roberts load data
Case Length (l3):	2.233" \| 56.7mm
Cartridge Length (C.O.L.):	2.616" \| 66.5mm
Seated Depth:	0.122" \| 3.1mm
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_B2561_C241
Last updated:	2025-01-01

Load data for 118 loads in caliber .257 Roberts with .257 | 60gr | Hornady InterLock FP bullet and 59 powders such as Accurate 2495, Hodgdon H322, IMR 3031. 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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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>>	90%	46151	90%	**86	94%
[ADI AR 2208]*	<<locked>>	95%	45788	89%	**40	92%
Accurate 2015	<<locked>>	86%	45629	89%	**50	100%
[Accurate 2230]*	<<locked>>	84%	46021	89%	**24	94%
Accurate 2460	<<locked>>	84%	45701	89%	**47	96%
Accurate 2495 👍	<<locked>>	91%	45934	89%	**29	100%
Accurate 2520	<<locked>>	89%	46151	90%	**96	97%
Accurate 4064	<<locked>>	96%	45310	88%	**89	98%
Alliant AR-Comp	<<locked>>	89%	45382	88%	**32	100%
Alliant Reloder- TS 15.5	<<locked>>	96%	45600	89%	**93	95%
Alliant Reloder-10x	<<locked>>	83%	45745	89%	**70	100%
[Alliant Reloder-15]*	<<locked>>	94%	46180	90%	**96	93%
[Baschieri & Pellagri 107]*	<<locked>>	90%	45571	88%	**56	92%
Hodgdon BL-C2	<<locked>>	89%	45818	89%	**96	95%
Hodgdon Benchmark	<<locked>>	87%	45759	89%	**04	96%
Hodgdon H322 👍	<<locked>>	87%	46093	90%	**12	99%
[Hodgdon VARGET]*	<<locked>>	96%	46282	90%	**47	93%
Hodgdon TrailBoss	<<locked>>	96%	31531	61%	**79	100%
IMR 3031 👍	<<locked>>	94%	45818	89%	**58	99%
[IMR 4064]*	<<locked>>	96%	45571	89%	**37	93%
IMR 4198	<<locked>>	83%	45745	89%	**47	100%
[IMR 4895]*	<<locked>>	93%	45556	88%	**06	94%
IMR 8208 XBR	<<locked>>	88%	46006	89%	**60	95%
Lovex D073.4	<<locked>>	83%	46021	89%	**40	96%
Lovex D073.5	<<locked>>	85%	46267	90%	**60	96%
Lovex D073.6	<<locked>>	91%	45556	88%	**86	97%
[Lovex S060]*	<<locked>>	89%	45643	89%	**88	93%
Lovex S062	<<locked>>	94%	45774	89%	**70	95%
Norma 201	<<locked>>	91%	45542	88%	**47	95%
Norma 202	<<locked>>	91%	46267	90%	**93	98%
[Norma 203B]*	<<locked>>	94%	46209	90%	**99	94%
[Ramshot Big Game]*	<<locked>>	94%	45556	88%	**93	93%
[Ramshot Wild Boar]*	<<locked>>	89%	46340	90%	**76	94%
[Ramshot X-Terminator]*	<<locked>>	85%	45324	88%	**01	93%
ReloadSwiss RS 14	<<locked>>	97%	32024	62%	**38	100%
ReloadSwiss RS 40	<<locked>>	84%	45948	89%	**66	97%
ReloadSwiss RS 52	<<locked>>	95%	45600	89%	**32	96%
Rottweil R 901	<<locked>>	88%	46050	89%	**56	97%
Rottweil R 902	<<locked>>	93%	45934	89%	**37	95%
[Rottweil R 903]*	<<locked>>	96%	42801	83%	**24	94%
[SNPE Vectan SP 11]*	<<locked>>	97%	45252	88%	**86	93%
[SNPE Vectan SP 9]*	<<locked>>	91%	46224	90%	**76	94%
SNPE Vectan Tubal 3000	<<locked>>	89%	46253	90%	**07	98%
SNPE Vectan Tubal 5000	<<locked>>	95%	45440	88%	**84	99%
Shooters World Match Rifle	<<locked>>	91%	45556	88%	**86	97%
Shooters World Precision	<<locked>>	94%	45774	89%	**70	95%
Somchem S321	<<locked>>	85%	45426	88%	**53	95%
Somchem S335	<<locked>>	90%	46180	90%	**10	99%
[Somchem S341]*	<<locked>>	89%	45585	89%	**37	93%
[Somchem S355]*	<<locked>>	97%	44469	86%	**40	94%
Vihtavuori N130	<<locked>>	86%	46166	90%	**14	100%
Vihtavuori N133	<<locked>>	92%	45600	89%	**10	99%
Vihtavuori N135	<<locked>>	97%	41771	81%	**78	99%
Vihtavuori N140	<<locked>>	93%	45803	89%	**47	98%
[Vihtavuori N150]*	<<locked>>	97%	37115	72%	**20	93%
Vihtavuori N530	<<locked>>	87%	45716	89%	**76	95%
Vihtavuori N540	<<locked>>	93%	46137	90%	**76	98%
Winchester 748	<<locked>>	87%	45890	89%	**19	96%
Winchester StaBALL Match	<<locked>>	85%	46253	90%	**99	95%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	84%	37666	73%	**60	90%
[ADI AR 2208]*	<<locked>>	91%	39740	77%	**89	90%
Accurate 2015	<<locked>>	81%	38609	75%	**76	99%
[Accurate 2230]*	<<locked>>	81%	40683	79%	**06	93%
Accurate 2460	<<locked>>	81%	40582	79%	**12	95%
Accurate 2495	<<locked>>	81%	32895	64%	**87	97%
[Accurate 2520]*	<<locked>>	81%	34142	66%	**81	93%
[Accurate 4064]*	<<locked>>	81%	27644	54%	**77	91%
Alliant AR-Comp	<<locked>>	81%	34113	66%	**43	99%
[Alliant Reloder- TS 15.5]*	<<locked>>	88%	34606	67%	**04	90%
Alliant Reloder-10x	<<locked>>	81%	42061	82%	**84	100%
[Alliant Reloder-15]*	<<locked>>	90%	39943	78%	**32	90%
[Baschieri & Pellagri 107]*	<<locked>>	87%	41292	80%	**58	90%
[Hodgdon BL-C2]*	<<locked>>	81%	34229	66%	**94	90%
[Hodgdon Benchmark]*	<<locked>>	81%	38348	74%	**27	93%
Hodgdon H322	<<locked>>	81%	38043	74%	**99	97%
[Hodgdon VARGET]*	<<locked>>	91%	40030	78%	**92	90%
Hodgdon TrailBoss	<<locked>>	81%	25179	49%	**92	100%
[IMR 3031]*	<<locked>>	81%	29617	58%	**99	94%
[IMR 4064]*	<<locked>>	91%	38725	75%	**63	90%
IMR 4198	<<locked>>	81%	43018	84%	**78	100%
[IMR 4895]*	<<locked>>	86%	36999	72%	**86	90%
[IMR 8208 XBR]*	<<locked>>	81%	35969	70%	**87	91%
Lovex D073.4	<<locked>>	81%	42322	82%	**51	95%
[Lovex D073.5]*	<<locked>>	81%	40045	78%	**99	94%
[Lovex D073.6]*	<<locked>>	81%	31618	61%	**02	92%
[Lovex S060]*	<<locked>>	83%	37594	73%	**81	90%
[Lovex S062]*	<<locked>>	85%	33605	65%	**35	90%
[Norma 201]*	<<locked>>	81%	33562	65%	**19	90%
[Norma 202]*	<<locked>>	81%	33040	64%	**45	93%
[Norma 203B]*	<<locked>>	88%	37623	73%	**86	90%
[Ramshot Big Game]*	<<locked>>	89%	38914	76%	**12	90%
[Ramshot Wild Boar]*	<<locked>>	83%	38000	74%	**69	90%
[Ramshot X-Terminator]*	<<locked>>	81%	39537	77%	**56	91%
ReloadSwiss RS 14	<<locked>>	81%	24903	48%	**34	100%
ReloadSwiss RS 40	<<locked>>	81%	40524	79%	**38	95%
[ReloadSwiss RS 52]*	<<locked>>	86%	33199	64%	**91	90%
Rottweil R 901	<<locked>>	81%	36651	71%	**14	95%
[Rottweil R 902]*	<<locked>>	83%	33779	66%	**15	90%
[Rottweil R 903]*	<<locked>>	91%	35882	70%	**27	90%
[SNPE Vectan SP 11]*	<<locked>>	92%	38638	75%	**06	90%
[SNPE Vectan SP 9]*	<<locked>>	85%	37927	74%	**56	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	35302	69%	**22	94%
[SNPE Vectan Tubal 5000]*	<<locked>>	81%	28500	55%	**15	93%
[Shooters World Match Rifle]*	<<locked>>	81%	31618	61%	**02	92%
[Shooters World Precision]*	<<locked>>	85%	33605	65%	**35	90%
[Somchem S321]*	<<locked>>	81%	38638	75%	**92	93%
Somchem S335	<<locked>>	81%	34737	67%	**15	95%
[Somchem S341]*	<<locked>>	84%	37855	74%	**37	90%
[Somchem S355]*	<<locked>>	91%	36318	71%	**23	90%
Vihtavuori N130	<<locked>>	81%	39204	76%	**46	99%
Vihtavuori N133	<<locked>>	81%	32590	63%	**76	96%
[Vihtavuori N135]*	<<locked>>	81%	25251	49%	**69	92%
[Vihtavuori N140]*	<<locked>>	81%	30777	60%	**46	93%
[Vihtavuori N150]*	<<locked>>	92%	31952	62%	**66	90%
[Vihtavuori N530]*	<<locked>>	81%	38014	74%	**76	92%
[Vihtavuori N540]*	<<locked>>	81%	30690	60%	**50	92%
[Winchester 748]*	<<locked>>	81%	37347	73%	**96	93%
[Winchester StaBALL Match]*	<<locked>>	81%	40147	78%	**32	92%

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