Load data for 7.7 X 58 mm Arisaka + .308 | 125gr | Osprey Virtus

Recommended Powder(s): Accurate 2495, Alliant AR-Comp, IMR 3031

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.308 \| 125gr \| Osprey Virtus
Manufacturer SKU:	Osprey-0.308-125
Bullet Weight:	125gr \| 8.1g
Bullet Diameter:	0.308" \| 7.82mm
Bullet Length:	<<locked>>
Caliber:	7.7 X 58 mm Arisaka load data
Case Length (l3):	2.270" \| 57.7mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	61.0 Grains of Water \| 3.96 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	44962 psi \| 3100 bar
LID:	LID_B10760_C1134
Last updated:	2026-03-24
Recommended Twist Rate:	1:14 - 1:12

Load data for 110 loads in caliber 7.7 X 58 mm Arisaka with .308 | 125gr | Osprey Virtus bullet and 55 powders such as Accurate 2495, Alliant AR-Comp, 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>>	91%	40292	90%	**54	92%
[ADI Benchmark 8208]*	<<locked>>	88%	39624	88%	**22	94%
Accurate 2015	<<locked>>	87%	40103	89%	**22	99%
[Accurate 2230]*	<<locked>>	85%	39784	88%	**05	93%
Accurate 2460	<<locked>>	85%	39900	89%	**25	95%
Accurate 2495 👍	<<locked>>	93%	40451	90%	**13	99%
Accurate 2520	<<locked>>	90%	39552	88%	**71	96%
Accurate 4064	<<locked>>	97%	38798	86%	**77	97%
Alliant AR-Comp 👍	<<locked>>	90%	39914	89%	**10	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	97%	39073	87%	**61	94%
Alliant Reloder-10x	<<locked>>	84%	40234	89%	**35	100%
[Alliant Reloder-15]*	<<locked>>	94%	39697	88%	**64	92%
[Bofors RP3]*	<<locked>>	97%	38609	86%	**58	93%
[Hodgdon BL-C2]*	<<locked>>	90%	39726	88%	**84	94%
Hodgdon Benchmark	<<locked>>	86%	39537	88%	**66	95%
Hodgdon H322	<<locked>>	87%	40321	90%	**67	98%
[Hodgdon H4895]*	<<locked>>	91%	40451	90%	**71	93%
Hodgdon TrailBoss	<<locked>>	95%	30734	68%	**31	100%
IMR 3031 👍	<<locked>>	95%	39929	89%	**23	99%
[IMR 4064]*	<<locked>>	97%	40335	90%	**18	92%
[IMR 4895]*	<<locked>>	94%	39740	88%	**84	92%
[IMR 8208 XBR]*	<<locked>>	88%	39624	88%	**22	94%
Lovex D073.4	<<locked>>	84%	39697	88%	**15	95%
Lovex D073.5	<<locked>>	86%	40176	89%	**38	96%
Lovex D073.6	<<locked>>	93%	40190	89%	**84	96%
[Lovex S060]*	<<locked>>	89%	40234	89%	**72	92%
[Lovex S062]*	<<locked>>	95%	40350	90%	**48	94%
[Norma 201]*	<<locked>>	91%	39987	89%	**35	94%
Norma 202	<<locked>>	91%	39784	88%	**54	97%
[Norma 203B]*	<<locked>>	95%	40379	90%	**81	93%
[Ramshot Wild Boar]*	<<locked>>	89%	40277	90%	**58	92%
[Ramshot X-Terminator]*	<<locked>>	85%	40176	89%	**92	92%
ReloadSwiss RS 14	<<locked>>	96%	30980	69%	**80	100%
ReloadSwiss RS 40	<<locked>>	84%	39755	88%	**31	96%
[ReloadSwiss RS 60]*	<<locked>>	97%	38014	85%	**71	94%
Rottweil R 901	<<locked>>	88%	40016	89%	**25	97%
[Rottweil R 902]*	<<locked>>	93%	40263	90%	**28	94%
[Rottweil R 903]*	<<locked>>	97%	35665	79%	**79	92%
[SNPE Vectan SP 9]*	<<locked>>	91%	40132	89%	**44	92%
SNPE Vectan Tubal 3000	<<locked>>	89%	40074	89%	**66	97%
SNPE Vectan Tubal 5000	<<locked>>	96%	40234	89%	**82	98%
Shooters World Match Rifle	<<locked>>	93%	40190	89%	**84	96%
[Shooters World Precision]*	<<locked>>	95%	40350	90%	**48	94%
Somchem S321	<<locked>>	87%	40335	90%	**61	95%
Somchem S335	<<locked>>	90%	40205	89%	**89	98%
[Somchem S341]*	<<locked>>	91%	40263	90%	**28	92%
[Somchem S355]*	<<locked>>	97%	37608	84%	**08	92%
Vihtavuori N130	<<locked>>	85%	39697	88%	**66	100%
Vihtavuori N133	<<locked>>	91%	39508	88%	**79	99%
Vihtavuori N135	<<locked>>	97%	35447	79%	**62	98%
Vihtavuori N140	<<locked>>	93%	39624	88%	**31	97%
[Vihtavuori N530]*	<<locked>>	87%	40001	89%	**44	94%
Vihtavuori N540	<<locked>>	94%	40451	90%	**67	97%
Winchester 748	<<locked>>	87%	40001	89%	**94	95%
[Winchester StaBALL Match]*	<<locked>>	85%	39885	89%	**64	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	86%	34534	77%	**20	90%
[ADI Benchmark 8208]*	<<locked>>	81%	31401	70%	**08	90%
Accurate 2015	<<locked>>	81%	33402	74%	**67	98%
[Accurate 2230]*	<<locked>>	81%	34708	77%	**90	91%
[Accurate 2460]*	<<locked>>	81%	34519	77%	**07	93%
Accurate 2495	<<locked>>	81%	26919	60%	**72	95%
[Accurate 2520]*	<<locked>>	81%	28442	63%	**95	92%
[Accurate 4064]*	<<locked>>	82%	23598	52%	**48	90%
Alliant AR-Comp	<<locked>>	81%	29269	65%	**41	99%
[Alliant Reloder- TS 15.5]*	<<locked>>	91%	32285	72%	**87	90%
Alliant Reloder-10x	<<locked>>	81%	36941	82%	**62	99%
[Alliant Reloder-15]*	<<locked>>	92%	36767	82%	**89	90%
[Bofors RP3]*	<<locked>>	91%	31517	70%	**84	90%
[Hodgdon BL-C2]*	<<locked>>	83%	31401	70%	**67	90%
[Hodgdon Benchmark]*	<<locked>>	81%	33997	76%	**38	93%
Hodgdon H322	<<locked>>	81%	33083	74%	**90	96%
[Hodgdon H4895]*	<<locked>>	85%	33127	74%	**90	90%
Hodgdon TrailBoss	<<locked>>	81%	24627	55%	**86	100%
[IMR 3031]*	<<locked>>	81%	25599	57%	**16	93%
[IMR 4064]*	<<locked>>	94%	36477	81%	**36	90%
[IMR 4895]*	<<locked>>	89%	34708	77%	**62	90%
[IMR 8208 XBR]*	<<locked>>	81%	31401	70%	**08	90%
[Lovex D073.4]*	<<locked>>	81%	35897	80%	**26	94%
[Lovex D073.5]*	<<locked>>	81%	34243	76%	**90	93%
[Lovex D073.6]*	<<locked>>	81%	26411	59%	**30	90%
[Lovex S060]*	<<locked>>	84%	34563	77%	**35	90%
[Lovex S062]*	<<locked>>	87%	30603	68%	**12	90%
[Norma 201]*	<<locked>>	83%	31009	69%	**02	90%
[Norma 202]*	<<locked>>	81%	28355	63%	**59	93%
[Norma 203B]*	<<locked>>	91%	34432	77%	**43	90%
[Ramshot Wild Boar]*	<<locked>>	86%	35418	79%	**36	90%
[Ramshot X-Terminator]*	<<locked>>	81%	35172	78%	**80	90%
ReloadSwiss RS 14	<<locked>>	81%	24236	54%	**19	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	35389	79%	**26	94%
[ReloadSwiss RS 60]*	<<locked>>	92%	32779	73%	**23	91%
[Rottweil R 901]*	<<locked>>	81%	31633	70%	**15	94%
[Rottweil R 902]*	<<locked>>	85%	30603	68%	**89	90%
[Rottweil R 903]*	<<locked>>	94%	32634	73%	**07	90%
[SNPE Vectan SP 9]*	<<locked>>	87%	34983	78%	**17	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	30850	69%	**46	94%
[SNPE Vectan Tubal 5000]*	<<locked>>	81%	24845	55%	**82	92%
[Shooters World Match Rifle]*	<<locked>>	81%	26411	59%	**30	90%
[Shooters World Precision]*	<<locked>>	87%	30603	68%	**12	90%
[Somchem S321]*	<<locked>>	81%	33315	74%	**90	92%
Somchem S335	<<locked>>	81%	30081	67%	**43	95%
[Somchem S341]*	<<locked>>	87%	35259	78%	**17	90%
[Somchem S355]*	<<locked>>	93%	33272	74%	**03	90%
Vihtavuori N130	<<locked>>	81%	34563	77%	**54	99%
Vihtavuori N133	<<locked>>	81%	28572	64%	**13	96%
[Vihtavuori N135]*	<<locked>>	81%	21683	48%	**46	91%
[Vihtavuori N140]*	<<locked>>	81%	26701	59%	**90	92%
[Vihtavuori N530]*	<<locked>>	81%	32590	72%	**57	91%
[Vihtavuori N540]*	<<locked>>	81%	26324	59%	**90	91%
[Winchester 748]*	<<locked>>	81%	32445	72%	**97	92%
[Winchester StaBALL Match]*	<<locked>>	81%	34272	76%	**26	91%

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