Load data for 6.5 x 58 mm Mauser Port. + .264 | 140gr | Berger BT Target

Recommended Powder(s): Alliant Reloder-16, Alliant Reloder-26, ReloadSwiss RS 70, Somchem S365, Vihtavuori N555

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.264 \| 140gr \| Berger BT Target
Manufacturer SKU:	26406
Bullet Weight:	140gr \| 9.1g
Bullet Diameter:	0.264" \| 6.71mm
Bullet Length:	1.376" \| 35.0mm
Caliber:	6.5 x 58 mm Mauser Port. load data
Case Length (l3):	2.283" \| 58.0mm
Cartridge Length (C.O.L.):	3.180" \| 80.8mm
Seated Depth:	0.479" \| 12.2mm
Shank Seated Depth:	0.299" \| 7.6mm
Case Capacity:	57.0 Grains of Water \| 3.70 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	51488 psi \| 3550 bar
LID:	LID_B996_C1021
Last updated:	2025-01-01
Recommended Twist Rate:	1:9 - 1:7

Load data for 110 loads in caliber 6.5 x 58 mm Mauser Port. with .264 | 140gr | Berger BT Target bullet and 55 powders such as Alliant Reloder-16, Alliant Reloder-26, ReloadSwiss RS 70, Somchem S365, Vihtavuori N555. 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 2209	<<locked>>	93%	45847	89%	**05	96%
[ADI AR 2213]*	<<locked>>	97%	46166	90%	**31	94%
Accurate 3100	<<locked>>	97%	45498	88%	**82	99%
Accurate 4350	<<locked>>	88%	45847	89%	**98	100%
[Accurate MAGPRO]*	<<locked>>	96%	43888	85%	**18	92%
Alliant Reloder-16 👍	<<locked>>	89%	46296	90%	**41	100%
Alliant Reloder-17	<<locked>>	85%	46224	90%	**57	100%
Alliant Reloder-19	<<locked>>	93%	45455	88%	**02	96%
Alliant Reloder-22	<<locked>>	97%	44962	87%	**44	96%
Alliant Reloder-23	<<locked>>	96%	42424	82%	**89	100%
Alliant Reloder-25	<<locked>>	97%	37594	73%	**13	97%
Alliant Reloder-26 👍	<<locked>>	96%	46253	90%	**30	100%
Hodgdon H414	<<locked>>	84%	45701	89%	**02	98%
Hodgdon H4350	<<locked>>	90%	45527	88%	**46	97%
[Hodgdon H4831]*	<<locked>>	97%	43163	84%	**30	93%
[Hodgdon H4831 SC]*	<<locked>>	95%	45455	88%	**79	94%
Hodgdon Hybrid 100V	<<locked>>	91%	45542	88%	**66	100%
Hodgdon LVR	<<locked>>	86%	45963	89%	**89	99%
Hodgdon Superperformance	<<locked>>	87%	46195	90%	**41	98%
IMR 4350	<<locked>>	88%	45803	89%	**49	97%
IMR 4451 Enduron	<<locked>>	84%	46108	90%	**30	98%
IMR 4831	<<locked>>	93%	46093	90%	**89	100%
[IMR 4955 Enduron]*	<<locked>>	95%	46238	90%	**56	94%
[IMR 7828 SSC]*	<<locked>>	96%	45905	89%	**41	94%
Lovex S065	<<locked>>	86%	45905	89%	**33	99%
Lovex S070	<<locked>>	87%	45876	89%	**52	98%
Lovex S071	<<locked>>	97%	38087	74%	**44	97%
Norma 204	<<locked>>	88%	45585	89%	**85	96%
Norma MRP	<<locked>>	95%	45513	88%	**84	98%
Norma URP	<<locked>>	88%	46282	90%	**08	100%
Ramshot Hunter	<<locked>>	89%	45672	89%	**08	99%
Ramshot Magnum	<<locked>>	97%	43743	85%	**95	96%
ReloadSwiss RS 60	<<locked>>	86%	45600	89%	**64	100%
ReloadSwiss RS 62	<<locked>>	88%	45716	89%	**18	99%
ReloadSwiss RS 70 👍	<<locked>>	89%	45571	89%	**54	99%
[ReloadSwiss RS 76]*	<<locked>>	97%	35998	70%	**03	94%
Rottweil R 904	<<locked>>	92%	45905	89%	**59	95%
Rottweil R 905	<<locked>>	94%	45542	88%	**08	96%
Rottweil R 907	<<locked>>	84%	45397	88%	**23	97%
SNPE Vectan Tubal 7000	<<locked>>	86%	46195	90%	**97	98%
Shooters World Long Rifle	<<locked>>	86%	45905	89%	**33	99%
[Somchem S361]*	<<locked>>	91%	45876	89%	**30	94%
Somchem S365 👍	<<locked>>	91%	45672	89%	**25	100%
Somchem S385	<<locked>>	93%	45600	89%	**82	97%
Vihtavuori N135	<<locked>>	83%	46064	89%	**70	100%
Vihtavuori N150	<<locked>>	87%	46021	89%	**13	100%
Vihtavuori N160	<<locked>>	86%	45890	89%	**59	99%
Vihtavuori N165	<<locked>>	97%	42859	83%	**20	96%
Vihtavuori N550	<<locked>>	86%	46253	90%	**02	99%
Vihtavuori N555 👍	<<locked>>	95%	45353	88%	**31	100%
[Vihtavuori N560]*	<<locked>>	96%	45150	88%	**51	94%
[Vihtavuori N565]*	<<locked>>	97%	38087	74%	**10	92%
Winchester 6.5 StaBALL	<<locked>>	88%	46195	90%	**56	100%
Winchester 760	<<locked>>	84%	45701	89%	**02	98%
Winchester StaBALL HD	<<locked>>	96%	35389	69%	**15	100%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2209]*	<<locked>>	82%	31995	62%	**00	90%
[ADI AR 2213]*	<<locked>>	89%	36622	71%	**31	90%
[Accurate 3100]*	<<locked>>	81%	26745	52%	**65	92%
Accurate 4350	<<locked>>	81%	36651	71%	**21	98%
[Accurate MAGPRO]*	<<locked>>	94%	40147	78%	**46	90%
Alliant Reloder-16	<<locked>>	81%	35694	69%	**25	98%
Alliant Reloder-17	<<locked>>	81%	40553	79%	**46	100%
[Alliant Reloder-19]*	<<locked>>	81%	31343	61%	**87	90%
[Alliant Reloder-22]*	<<locked>>	85%	31343	61%	**29	90%
Alliant Reloder-23	<<locked>>	81%	26092	51%	**95	96%
[Alliant Reloder-25]*	<<locked>>	85%	25991	50%	**85	90%
[Alliant Reloder-26]*	<<locked>>	81%	27557	54%	**83	93%
Hodgdon H414	<<locked>>	81%	41930	81%	**30	97%
[Hodgdon H4350]*	<<locked>>	81%	34592	67%	**23	94%
[Hodgdon H4831]*	<<locked>>	92%	37188	72%	**02	90%
[Hodgdon H4831 SC]*	<<locked>>	88%	36811	72%	**98	90%
Hodgdon Hybrid 100V	<<locked>>	81%	33301	65%	**33	99%
Hodgdon LVR	<<locked>>	81%	39407	77%	**70	98%
Hodgdon Superperformance	<<locked>>	81%	37275	72%	**61	95%
[IMR 4350]*	<<locked>>	81%	36318	71%	**59	94%
IMR 4451 Enduron	<<locked>>	81%	42540	83%	**67	97%
IMR 4831	<<locked>>	81%	31792	62%	**97	97%
[IMR 4955 Enduron]*	<<locked>>	87%	36216	70%	**52	90%
[IMR 7828 SSC]*	<<locked>>	89%	36318	71%	**38	90%
Lovex S065	<<locked>>	81%	39697	77%	**18	98%
Lovex S070	<<locked>>	81%	37942	74%	**95	96%
[Lovex S071]*	<<locked>>	83%	24381	47%	**96	90%
[Norma 204]*	<<locked>>	81%	35940	70%	**82	92%
[Norma MRP]*	<<locked>>	82%	28616	56%	**77	90%
Norma URP	<<locked>>	81%	36347	71%	**11	98%
Ramshot Hunter	<<locked>>	81%	35346	69%	**02	96%
[Ramshot Magnum]*	<<locked>>	87%	30908	60%	**06	90%
ReloadSwiss RS 60	<<locked>>	81%	39276	76%	**43	100%
ReloadSwiss RS 62	<<locked>>	81%	35969	70%	**31	98%
ReloadSwiss RS 70	<<locked>>	81%	35476	69%	**41	97%
[ReloadSwiss RS 76]*	<<locked>>	92%	30574	59%	**46	90%
[Rottweil R 904]*	<<locked>>	82%	34069	66%	**13	90%
[Rottweil R 905]*	<<locked>>	82%	30734	60%	**83	90%
Rottweil R 907	<<locked>>	81%	40930	79%	**38	96%
SNPE Vectan Tubal 7000	<<locked>>	81%	38928	76%	**62	96%
Shooters World Long Rifle	<<locked>>	81%	39697	77%	**18	98%
[Somchem S361]*	<<locked>>	84%	36666	71%	**49	90%
Somchem S365	<<locked>>	81%	32590	63%	**72	99%
[Somchem S385]*	<<locked>>	81%	30414	59%	**51	91%
Vihtavuori N135	<<locked>>	81%	43178	84%	**25	100%
Vihtavuori N150	<<locked>>	81%	37811	73%	**65	100%
Vihtavuori N160	<<locked>>	81%	39581	77%	**51	99%
[Vihtavuori N165]*	<<locked>>	86%	29791	58%	**24	90%
Vihtavuori N550	<<locked>>	81%	39929	78%	**80	98%
Vihtavuori N555	<<locked>>	81%	28413	55%	**70	96%
[Vihtavuori N560]*	<<locked>>	90%	36695	71%	**67	90%
[Vihtavuori N565]*	<<locked>>	94%	35027	68%	**41	90%
Winchester 6.5 StaBALL	<<locked>>	81%	36956	72%	**82	99%
Winchester 760	<<locked>>	81%	41930	81%	**30	97%
[Winchester StaBALL HD]*	<<locked>>	81%	23119	45%	**49	93%

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