Load data for 6.5 x 52 R K&S + .264 | 87gr | IBEX Viper

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.264 \| 87gr \| IBEX Viper
Manufacturer SKU:	T7005
Bullet Weight:	87gr \| 5.6g
Bullet Diameter:	0.264" \| 6.71mm
Bullet Length:	<<locked>>
Caliber:	6.5 x 52 R K&S load data
Case Length (l3):	2.020" \| 51.3mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	47.0 Grains of Water \| 3.05 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	47137 psi \| 3250 bar
LID:	LID_B7007_C1009
Last updated:	2026-02-02
Recommended Twist Rate:	1:10 - 1:8

Load data for 108 loads in caliber 6.5 x 52 R K&S with .264 | 87gr | IBEX Viper bullet and 54 powder(s). 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>>	87%	41669	88%	**36	93%
[ADI AR 2208]*	<<locked>>	93%	41394	88%	**94	92%
Accurate 2015	<<locked>>	84%	42134	89%	**97	100%
Accurate 2495 👍	<<locked>>	87%	41771	89%	**76	100%
Accurate 2520	<<locked>>	87%	41742	89%	**63	97%
Accurate 4064	<<locked>>	93%	41423	88%	**66	98%
Alliant AR-Comp	<<locked>>	88%	41858	89%	**92	100%
Alliant Reloder- TS 15.5	<<locked>>	95%	42279	90%	**76	95%
[Alliant Reloder-15]*	<<locked>>	91%	41713	88%	**53	92%
[Alliant Reloder-17]*	<<locked>>	97%	40654	86%	**69	92%
[Baschieri & Pellagri 107]*	<<locked>>	88%	41698	88%	**36	91%
Bofors RP3	<<locked>>	94%	41945	89%	**76	95%
Hodgdon BL-C2	<<locked>>	87%	42134	89%	**76	95%
Hodgdon Benchmark	<<locked>>	84%	41568	88%	**61	96%
Hodgdon H322	<<locked>>	84%	42119	89%	**46	98%
[Hodgdon H4895]*	<<locked>>	87%	41800	89%	**43	94%
[Hodgdon VARGET]*	<<locked>>	93%	42061	89%	**10	92%
Hodgdon TrailBoss	<<locked>>	95%	31937	68%	**90	100%
IMR 3031 👍	<<locked>>	92%	41669	88%	**05	99%
[IMR 4064]*	<<locked>>	93%	41379	88%	**90	92%
[IMR 4895]*	<<locked>>	91%	41727	89%	**66	93%
IMR 8208 XBR	<<locked>>	86%	41945	89%	**13	95%
Lovex D073.6	<<locked>>	89%	41220	87%	**49	97%
[Lovex S060]*	<<locked>>	87%	41800	89%	**58	93%
Lovex S062	<<locked>>	92%	41713	88%	**23	95%
Norma 201	<<locked>>	88%	42279	90%	**17	95%
Norma 202	<<locked>>	88%	41742	89%	**36	98%
[Norma 203B]*	<<locked>>	92%	42032	89%	**63	93%
[Ramshot Big Game]*	<<locked>>	92%	41945	89%	**66	93%
[Ramshot Wild Boar]*	<<locked>>	87%	42163	89%	**46	93%
[Ramshot X-Terminator]*	<<locked>>	83%	42264	90%	**87	93%
ReloadSwiss RS 14	<<locked>>	97%	32822	70%	**55	100%
[ReloadSwiss RS 52]*	<<locked>>	90%	41321	88%	**09	92%
ReloadSwiss RS 60	<<locked>>	95%	41394	88%	**18	96%
Rottweil R 901	<<locked>>	84%	41553	88%	**84	97%
Rottweil R 902	<<locked>>	90%	42148	89%	**04	95%
[Rottweil R 903]*	<<locked>>	97%	42424	90%	**69	94%
[SNPE Vectan SP 11]*	<<locked>>	95%	41437	88%	**56	92%
[SNPE Vectan SP 9]*	<<locked>>	89%	41582	88%	**23	93%
SNPE Vectan Tubal 3000	<<locked>>	86%	41611	88%	**41	97%
SNPE Vectan Tubal 5000	<<locked>>	94%	42279	90%	**67	99%
Shooters World Match Rifle	<<locked>>	89%	41220	87%	**49	97%
Shooters World Precision	<<locked>>	92%	41713	88%	**23	95%
Somchem S321	<<locked>>	84%	42221	90%	**36	95%
Somchem S335	<<locked>>	87%	41408	88%	**58	98%
[Somchem S341]*	<<locked>>	88%	41626	88%	**10	93%
[Somchem S355]*	<<locked>>	95%	41959	89%	**49	94%
Vihtavuori N133	<<locked>>	89%	42090	89%	**74	99%
Vihtavuori N135	<<locked>>	97%	41350	88%	**27	99%
Vihtavuori N140	<<locked>>	91%	41916	89%	**20	98%
[Vihtavuori N150]*	<<locked>>	97%	37057	79%	**08	94%
Vihtavuori N530	<<locked>>	84%	41887	89%	**30	95%
Vihtavuori N540	<<locked>>	91%	42264	90%	**46	98%
Winchester 748	<<locked>>	85%	41843	89%	**76	96%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	81%	34679	74%	**53	90%
[ADI AR 2208]*	<<locked>>	89%	37666	80%	**08	90%
Accurate 2015	<<locked>>	81%	39233	83%	**38	99%
Accurate 2495	<<locked>>	81%	34214	73%	**92	98%
[Accurate 2520]*	<<locked>>	81%	34476	73%	**85	94%
[Accurate 4064]*	<<locked>>	81%	29196	62%	**48	94%
Alliant AR-Comp	<<locked>>	81%	34258	73%	**15	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	85%	31778	67%	**07	90%
[Alliant Reloder-15]*	<<locked>>	87%	36347	77%	**18	90%
[Alliant Reloder-17]*	<<locked>>	94%	37072	79%	**77	90%
[Baschieri & Pellagri 107]*	<<locked>>	86%	39117	83%	**74	90%
[Bofors RP3]*	<<locked>>	86%	31836	68%	**26	90%
[Hodgdon BL-C2]*	<<locked>>	81%	34156	72%	**85	92%
Hodgdon Benchmark	<<locked>>	81%	38725	82%	**89	95%
Hodgdon H322	<<locked>>	81%	38072	81%	**54	98%
[Hodgdon H4895]*	<<locked>>	81%	34751	74%	**69	91%
[Hodgdon VARGET]*	<<locked>>	89%	37260	79%	**99	90%
Hodgdon TrailBoss	<<locked>>	81%	25831	55%	**45	100%
IMR 3031	<<locked>>	81%	30284	64%	**07	96%
[IMR 4064]*	<<locked>>	89%	36738	78%	**79	90%
[IMR 4895]*	<<locked>>	84%	34258	73%	**82	90%
[IMR 8208 XBR]*	<<locked>>	81%	36463	77%	**79	93%
[Lovex D073.6]*	<<locked>>	81%	32416	69%	**33	94%
[Lovex S060]*	<<locked>>	81%	35621	76%	**00	91%
[Lovex S062]*	<<locked>>	81%	30603	65%	**31	90%
[Norma 201]*	<<locked>>	81%	34156	72%	**17	92%
Norma 202	<<locked>>	81%	33431	71%	**33	95%
[Norma 203B]*	<<locked>>	86%	34635	73%	**85	90%
[Ramshot Big Game]*	<<locked>>	88%	36564	78%	**31	90%
[Ramshot Wild Boar]*	<<locked>>	81%	35157	75%	**69	90%
[Ramshot X-Terminator]*	<<locked>>	81%	39262	83%	**12	92%
ReloadSwiss RS 14	<<locked>>	81%	25904	55%	**85	100%
[ReloadSwiss RS 52]*	<<locked>>	87%	37623	80%	**17	90%
[ReloadSwiss RS 60]*	<<locked>>	87%	32097	68%	**36	90%
Rottweil R 901	<<locked>>	81%	37927	80%	**99	96%
[Rottweil R 902]*	<<locked>>	81%	32430	69%	**57	91%
[Rottweil R 903]*	<<locked>>	89%	32895	70%	**40	90%
[SNPE Vectan SP 11]*	<<locked>>	91%	37057	79%	**51	90%
[SNPE Vectan SP 9]*	<<locked>>	83%	35375	75%	**66	90%
SNPE Vectan Tubal 3000	<<locked>>	81%	35839	76%	**03	96%
[SNPE Vectan Tubal 5000]*	<<locked>>	81%	29254	62%	**46	94%
[Shooters World Match Rifle]*	<<locked>>	81%	32416	69%	**33	94%
[Shooters World Precision]*	<<locked>>	81%	30603	65%	**31	90%
[Somchem S321]*	<<locked>>	81%	38551	82%	**51	94%
Somchem S335	<<locked>>	81%	35128	75%	**03	97%
[Somchem S341]*	<<locked>>	82%	35215	75%	**53	90%
[Somchem S355]*	<<locked>>	87%	33040	70%	**26	90%
Vihtavuori N133	<<locked>>	81%	33098	70%	**61	98%
[Vihtavuori N135]*	<<locked>>	81%	26411	56%	**33	94%
Vihtavuori N140	<<locked>>	81%	31517	67%	**64	95%
[Vihtavuori N150]*	<<locked>>	89%	29878	63%	**18	90%
[Vihtavuori N530]*	<<locked>>	81%	37811	80%	**31	94%
[Vihtavuori N540]*	<<locked>>	81%	31328	66%	**71	94%
[Winchester 748]*	<<locked>>	81%	37101	79%	**61	94%

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