Load data for 6.5 x 51 R Jap. Arisaka + .264 | 129gr | Hornady SST InterLock

Recommended Powder(s): ReloadSwiss RS 60, Somchem S365

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.264 \| 129gr \| Hornady SST InterLock
Manufacturer SKU:	26202
Bullet Weight:	129gr \| 8.4g
Bullet Diameter:	0.264" \| 6.71mm
Bullet Length:	1.300" \| 33.0mm
Caliber:	6.5 x 51 R Jap. Arisaka load data
Case Length (l3):	2.007" \| 51.0mm
Cartridge Length (C.O.L.):	2.945" \| 74.8mm
Seated Depth:	0.362" \| 9.2mm
Shank Seated Depth:	0.262" \| 6.7mm
Case Capacity:	45.0 Grains of Water \| 2.92 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	42786 psi \| 2950 bar
LID:	LID_B2586_C1006
Last updated:	2025-02-02
Recommended Twist Rate:	1:9 - 1:7

Load data for 78 loads in caliber 6.5 x 51 R Jap. Arisaka with .264 | 129gr | Hornady SST InterLock bullet and 39 powders such as ReloadSwiss RS 60, Somchem S365. 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.

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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
[Accurate 2700]*	<<locked>>	84%	38377	90%	**06	92%
[Accurate 3100]*	<<locked>>	97%	32169	75%	**03	92%
Accurate 4350	<<locked>>	92%	38276	89%	**51	96%
Alliant Reloder- TS 15.5	<<locked>>	83%	38247	89%	**95	98%
Alliant Reloder-16	<<locked>>	91%	38261	89%	**48	96%
Alliant Reloder-17	<<locked>>	87%	37623	88%	**70	98%
Alliant Reloder-23	<<locked>>	96%	31241	73%	**13	95%
[Alliant Reloder-26]*	<<locked>>	96%	34272	80%	**31	93%
[Hodgdon H414]*	<<locked>>	87%	38072	89%	**31	93%
[Hodgdon H4350]*	<<locked>>	92%	37623	88%	**52	91%
Hodgdon Hybrid 100V	<<locked>>	94%	37695	88%	**08	98%
Hodgdon LVR	<<locked>>	89%	38189	89%	**28	95%
[IMR 4166 Enduron]*	<<locked>>	83%	38464	90%	**20	93%
[IMR 4350]*	<<locked>>	90%	37869	88%	**62	92%
[IMR 4451 Enduron]*	<<locked>>	85%	38101	89%	**39	92%
IMR 4831	<<locked>>	96%	38290	90%	**34	96%
[Lovex S065]*	<<locked>>	88%	38043	89%	**52	94%
[Lovex S070]*	<<locked>>	89%	37753	88%	**65	93%
Norma URP	<<locked>>	92%	38450	90%	**41	96%
[Ramshot Hunter]*	<<locked>>	92%	37492	88%	**18	93%
ReloadSwiss RS 60 👍	<<locked>>	88%	37608	88%	**77	99%
ReloadSwiss RS 62	<<locked>>	92%	38377	90%	**70	96%
[ReloadSwiss RS 70]*	<<locked>>	91%	37652	88%	**44	94%
Rottweil R 903	<<locked>>	86%	38450	90%	**02	98%
[Rottweil R 907]*	<<locked>>	86%	37695	88%	**33	92%
SNPE Vectan SP 11	<<locked>>	84%	37797	88%	**11	97%
[SNPE Vectan Tubal 7000]*	<<locked>>	88%	38116	89%	**20	93%
[Shooters World Long Rifle]*	<<locked>>	88%	38043	89%	**52	94%
Somchem S355	<<locked>>	84%	37594	88%	**69	98%
Somchem S365 👍	<<locked>>	95%	37594	88%	**70	99%
[Somchem S385]*	<<locked>>	97%	37536	88%	**02	92%
Vihtavuori N135	<<locked>>	85%	37811	88%	**43	100%
Vihtavuori N150	<<locked>>	90%	38276	89%	**65	99%
Vihtavuori N160	<<locked>>	88%	37971	89%	**92	96%
Vihtavuori N550	<<locked>>	88%	38203	89%	**38	96%
Vihtavuori N555	<<locked>>	96%	33344	78%	**88	95%
Winchester 6.5 StaBALL	<<locked>>	89%	37739	88%	**72	98%
[Winchester 760]*	<<locked>>	87%	38072	89%	**31	93%
[Winchester StaBALL HD]*	<<locked>>	96%	27876	65%	**60	92%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[Accurate 2700]*	<<locked>>	82%	35592	83%	**47	90%
[Accurate 3100]*	<<locked>>	94%	29646	69%	**41	90%
[Accurate 4350]*	<<locked>>	81%	26455	62%	**65	91%
Alliant Reloder- TS 15.5	<<locked>>	81%	35404	83%	**36	98%
[Alliant Reloder-16]*	<<locked>>	81%	28007	65%	**82	91%
Alliant Reloder-17	<<locked>>	81%	30632	72%	**93	95%
[Alliant Reloder-23]*	<<locked>>	88%	24337	57%	**03	90%
[Alliant Reloder-26]*	<<locked>>	93%	30066	70%	**20	91%
[Hodgdon H414]*	<<locked>>	83%	33373	78%	**20	90%
[Hodgdon H4350]*	<<locked>>	89%	34809	81%	**97	90%
[Hodgdon Hybrid 100V]*	<<locked>>	81%	25266	59%	**93	92%
[Hodgdon LVR]*	<<locked>>	81%	30008	70%	**28	91%
[IMR 4166 Enduron]*	<<locked>>	81%	35563	83%	**57	92%
[IMR 4350]*	<<locked>>	88%	35041	82%	**00	90%
[IMR 4451 Enduron]*	<<locked>>	81%	33475	78%	**44	90%
[IMR 4831]*	<<locked>>	83%	25585	60%	**16	90%
[Lovex S065]*	<<locked>>	81%	30763	72%	**88	91%
[Lovex S070]*	<<locked>>	84%	32242	75%	**44	90%
[Norma URP]*	<<locked>>	81%	27311	64%	**69	91%
[Ramshot Hunter]*	<<locked>>	86%	31401	73%	**74	90%
ReloadSwiss RS 60	<<locked>>	81%	29863	70%	**80	96%
[ReloadSwiss RS 62]*	<<locked>>	82%	27398	64%	**98	90%
[ReloadSwiss RS 70]*	<<locked>>	85%	30676	72%	**74	90%
Rottweil R 903	<<locked>>	81%	32590	76%	**80	97%
[Rottweil R 907]*	<<locked>>	84%	34809	81%	**70	90%
SNPE Vectan SP 11	<<locked>>	81%	33866	79%	**29	96%
[SNPE Vectan Tubal 7000]*	<<locked>>	83%	32314	76%	**05	90%
[Shooters World Long Rifle]*	<<locked>>	81%	30763	72%	**88	91%
Somchem S355	<<locked>>	81%	33634	79%	**87	97%
[Somchem S365]*	<<locked>>	81%	24685	58%	**26	93%
[Somchem S385]*	<<locked>>	94%	34606	81%	**33	90%
Vihtavuori N135	<<locked>>	81%	32677	76%	**41	100%
Vihtavuori N150	<<locked>>	81%	29051	68%	**65	97%
[Vihtavuori N160]*	<<locked>>	81%	30023	70%	**11	92%
[Vihtavuori N550]*	<<locked>>	81%	30052	70%	**47	92%
[Vihtavuori N555]*	<<locked>>	87%	25077	59%	**52	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	28631	67%	**59	94%
[Winchester 760]*	<<locked>>	83%	33373	78%	**20	90%
[Winchester StaBALL HD]*	<<locked>>	94%	25962	61%	**92	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