Load data for 7.7 X 58 mm Arisaka + .308 | 150gr | Lapua Mega

Recommended Powder(s): Accurate 4064, Lovex D073.6, Shooters World Match Rifle

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.308 \| 150gr \| Lapua Mega
Manufacturer SKU:	4PL7057 \| E469
Bullet Weight:	150gr \| 9.7g
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_B3147_C1134
Last updated:	2026-03-23

Load data for 114 loads in caliber 7.7 X 58 mm Arisaka with .308 | 150gr | Lapua Mega bullet and 57 powders such as Accurate 4064, Lovex D073.6, Shooters World Match Rifle. 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>>	84%	40277	90%	**44	96%
ADI AR 2208	<<locked>>	89%	40393	90%	**25	95%
Accurate 2495	<<locked>>	84%	40437	90%	**71	100%
Accurate 2520	<<locked>>	83%	39769	88%	**57	98%
Accurate 4064 👍	<<locked>>	90%	40118	89%	**71	99%
[Accurate 4350]*	<<locked>>	97%	36622	81%	**38	92%
Alliant AR-Comp	<<locked>>	83%	39798	89%	**61	100%
[Alliant Power Pro 2000-MR]*	<<locked>>	87%	40350	90%	**23	94%
Alliant Reloder- TS 15.5	<<locked>>	90%	40306	90%	**74	97%
Alliant Reloder-15	<<locked>>	88%	40001	89%	**57	95%
[Alliant Reloder-16]*	<<locked>>	97%	38740	86%	**64	93%
Alliant Reloder-17	<<locked>>	94%	40030	89%	**26	95%
[Baschieri & Pellagri 107]*	<<locked>>	85%	40190	89%	**61	94%
Bofors RP3	<<locked>>	91%	40437	90%	**84	97%
Hodgdon BL-C2	<<locked>>	84%	40393	90%	**80	97%
[Hodgdon CFE223]*	<<locked>>	89%	39943	89%	**84	94%
[Hodgdon H380]*	<<locked>>	90%	40422	90%	**54	93%
Hodgdon H4895	<<locked>>	83%	39653	88%	**38	96%
[Hodgdon Hybrid 100V]*	<<locked>>	96%	34403	77%	**39	93%
[Hodgdon LVR]*	<<locked>>	96%	40364	90%	**87	93%
[Hodgdon VARGET]*	<<locked>>	89%	39827	89%	**15	94%
Hodgdon TrailBoss	<<locked>>	96%	32576	72%	**06	100%
IMR 3031	<<locked>>	88%	40089	89%	**94	100%
IMR 4064	<<locked>>	90%	40393	90%	**18	95%
IMR 4895	<<locked>>	87%	40089	89%	**71	96%
Lovex D073.6 👍	<<locked>>	85%	40234	89%	**67	99%
Lovex S062	<<locked>>	88%	40350	90%	**35	97%
[Lovex S065]*	<<locked>>	94%	40016	89%	**15	92%
Norma 201	<<locked>>	84%	39972	89%	**18	97%
Norma 202	<<locked>>	85%	40147	89%	**38	99%
Norma 203B	<<locked>>	88%	40059	89%	**61	95%
[Norma URP]*	<<locked>>	97%	38261	85%	**57	93%
Ramshot Big Game	<<locked>>	88%	39871	89%	**74	95%
ReloadSwiss RS 14	<<locked>>	96%	32735	73%	**45	100%
ReloadSwiss RS 52	<<locked>>	87%	40350	90%	**30	95%
ReloadSwiss RS 60	<<locked>>	92%	39827	89%	**43	98%
Rottweil R 902	<<locked>>	86%	39813	89%	**05	97%
Rottweil R 903	<<locked>>	93%	40190	89%	**74	96%
SNPE Vectan SP 11	<<locked>>	91%	40132	89%	**90	95%
[SNPE Vectan SP 7]*	<<locked>>	84%	39929	89%	**15	93%
SNPE Vectan SP 9	<<locked>>	85%	39958	89%	**35	95%
SNPE Vectan Tubal 5000	<<locked>>	89%	40089	89%	**62	100%
[Shooters World Long Rifle]*	<<locked>>	94%	40016	89%	**15	92%
Shooters World Match Rifle 👍	<<locked>>	85%	40234	89%	**67	99%
Shooters World Precision	<<locked>>	88%	40350	90%	**35	97%
Somchem S335	<<locked>>	84%	40306	90%	**75	99%
Somchem S341	<<locked>>	84%	40263	90%	**28	95%
Somchem S355	<<locked>>	92%	39900	89%	**51	96%
Somchem S365	<<locked>>	97%	33808	75%	**85	95%
Vihtavuori N133	<<locked>>	85%	40393	90%	**66	100%
Vihtavuori N135	<<locked>>	93%	39972	89%	**31	100%
Vihtavuori N140	<<locked>>	87%	40248	90%	**15	99%
Vihtavuori N150	<<locked>>	96%	39334	87%	**15	97%
[Vihtavuori N160]*	<<locked>>	95%	39668	88%	**44	93%
Vihtavuori N540	<<locked>>	87%	39813	89%	**31	99%
[Vihtavuori N550]*	<<locked>>	95%	39914	89%	**90	93%
Winchester 6.5 StaBALL	<<locked>>	96%	40393	90%	**28	96%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	81%	36709	82%	**66	94%
[ADI AR 2208]*	<<locked>>	81%	31053	69%	**05	91%
Accurate 2495	<<locked>>	81%	35781	80%	**75	100%
Accurate 2520	<<locked>>	81%	36738	82%	**89	98%
Accurate 4064	<<locked>>	81%	30110	67%	**34	97%
[Accurate 4350]*	<<locked>>	93%	31865	71%	**26	90%
Alliant AR-Comp	<<locked>>	81%	36738	82%	**98	100%
[Alliant Power Pro 2000-MR]*	<<locked>>	82%	33562	75%	**49	90%
[Alliant Reloder- TS 15.5]*	<<locked>>	81%	29776	66%	**18	93%
[Alliant Reloder-15]*	<<locked>>	81%	32561	72%	**84	92%
[Alliant Reloder-16]*	<<locked>>	93%	34200	76%	**46	90%
[Alliant Reloder-17]*	<<locked>>	85%	30139	67%	**61	90%
[Baschieri & Pellagri 107]*	<<locked>>	81%	35476	79%	**43	92%
[Bofors RP3]*	<<locked>>	81%	29066	65%	**11	92%
Hodgdon BL-C2	<<locked>>	81%	36796	82%	**02	96%
[Hodgdon CFE223]*	<<locked>>	83%	32735	73%	**03	90%
[Hodgdon H380]*	<<locked>>	84%	33518	75%	**93	90%
Hodgdon H4895	<<locked>>	81%	36898	82%	**79	95%
[Hodgdon Hybrid 100V]*	<<locked>>	91%	29254	65%	**95	90%
[Hodgdon LVR]*	<<locked>>	91%	34766	77%	**56	90%
[Hodgdon VARGET]*	<<locked>>	81%	30821	69%	**92	90%
Hodgdon TrailBoss	<<locked>>	81%	25715	57%	**62	100%
IMR 3031	<<locked>>	81%	32256	72%	**16	99%
[IMR 4064]*	<<locked>>	81%	30530	68%	**82	91%
[IMR 4895]*	<<locked>>	81%	33330	74%	**16	93%
Lovex D073.6	<<locked>>	81%	34403	77%	**36	97%
[Lovex S062]*	<<locked>>	81%	32126	71%	**48	94%
[Lovex S065]*	<<locked>>	92%	36492	81%	**36	90%
Norma 201	<<locked>>	81%	35607	79%	**20	96%
Norma 202	<<locked>>	81%	35592	79%	**39	98%
[Norma 203B]*	<<locked>>	81%	31821	71%	**70	92%
[Norma URP]*	<<locked>>	92%	32895	73%	**26	90%
[Ramshot Big Game]*	<<locked>>	81%	31459	70%	**64	91%
ReloadSwiss RS 14	<<locked>>	81%	26020	58%	**01	100%
[ReloadSwiss RS 52]*	<<locked>>	81%	33402	74%	**59	92%
[ReloadSwiss RS 60]*	<<locked>>	81%	27963	62%	**05	92%
Rottweil R 902	<<locked>>	81%	34301	76%	**77	95%
[Rottweil R 903]*	<<locked>>	81%	27369	61%	**52	91%
[SNPE Vectan SP 11]*	<<locked>>	82%	29486	66%	**18	90%
[SNPE Vectan SP 7]*	<<locked>>	81%	36434	81%	**33	91%
[SNPE Vectan SP 9]*	<<locked>>	81%	35201	78%	**33	94%
SNPE Vectan Tubal 5000	<<locked>>	81%	30487	68%	**56	98%
[Shooters World Long Rifle]*	<<locked>>	92%	36492	81%	**36	90%
Shooters World Match Rifle	<<locked>>	81%	34403	77%	**36	97%
[Shooters World Precision]*	<<locked>>	81%	32126	71%	**48	94%
Somchem S335	<<locked>>	81%	36898	82%	**03	99%
[Somchem S341]*	<<locked>>	81%	36085	80%	**39	94%
[Somchem S355]*	<<locked>>	81%	28340	63%	**65	91%
[Somchem S365]*	<<locked>>	89%	26600	59%	**65	90%
Vihtavuori N133	<<locked>>	81%	35201	78%	**61	100%
Vihtavuori N135	<<locked>>	81%	27369	61%	**39	98%
Vihtavuori N140	<<locked>>	81%	33214	74%	**67	98%
[Vihtavuori N150]*	<<locked>>	81%	24352	54%	**31	90%
[Vihtavuori N160]*	<<locked>>	90%	33634	75%	**00	90%
Vihtavuori N540	<<locked>>	81%	33083	74%	**87	97%
[Vihtavuori N550]*	<<locked>>	90%	33185	74%	**30	90%
[Winchester 6.5 StaBALL]*	<<locked>>	86%	29167	65%	**43	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