Load data for 7.7 X 58 mm Arisaka + .308 | 170gr | Geco PLUS

Recommended Powder(s): ReloadSwiss RS 60

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.308 \| 170gr \| Geco PLUS
Bullet Weight:	170gr \| 11.0g
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_B9018_C1134
Last updated:	2026-03-22

Load data for 114 loads in caliber 7.7 X 58 mm Arisaka with .308 | 170gr | Geco PLUS bullet and 57 powders such as ReloadSwiss RS 60. 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 2208	<<locked>>	87%	39624	88%	**41	96%
Accurate 4064	<<locked>>	88%	39871	89%	**90	100%
Accurate 4350	<<locked>>	97%	39276	87%	**36	95%
Alliant Power Pro 2000-MR	<<locked>>	85%	40147	89%	**59	95%
Alliant Reloder- TS 15.5	<<locked>>	89%	40074	89%	**93	98%
Alliant Reloder-15	<<locked>>	86%	39987	89%	**87	96%
Alliant Reloder-16	<<locked>>	97%	40089	89%	**39	95%
Alliant Reloder-17	<<locked>>	93%	40103	89%	**72	97%
Baschieri & Pellagri 107	<<locked>>	83%	40059	89%	**90	95%
Bofors RP3	<<locked>>	89%	39900	89%	**07	98%
Hodgdon CFE223	<<locked>>	87%	40074	89%	**23	95%
[Hodgdon H380]*	<<locked>>	88%	39871	89%	**74	94%
[Hodgdon H414]*	<<locked>>	92%	40335	90%	**26	91%
Hodgdon Hybrid 100V	<<locked>>	97%	36564	81%	**38	96%
[Hodgdon LVR]*	<<locked>>	94%	40089	89%	**20	94%
Hodgdon VARGET	<<locked>>	88%	40045	89%	**51	96%
Hodgdon TrailBoss	<<locked>>	95%	32372	72%	**75	100%
IMR 3031	<<locked>>	86%	39769	88%	**03	100%
IMR 4064	<<locked>>	89%	40321	90%	**54	96%
[IMR 4166 Enduron]*	<<locked>>	88%	40190	89%	**05	91%
[IMR 4831]*	<<locked>>	96%	33547	75%	**85	93%
IMR 4895	<<locked>>	85%	40176	89%	**10	97%
Lovex D073.6	<<locked>>	84%	40422	90%	**93	99%
Lovex S062	<<locked>>	86%	39668	88%	**54	98%
[Lovex S065]*	<<locked>>	93%	40451	90%	**61	93%
[Lovex S070]*	<<locked>>	95%	40321	90%	**77	92%
Norma 201	<<locked>>	83%	40393	90%	**51	98%
Norma 203B	<<locked>>	86%	39958	89%	**97	97%
Norma URP	<<locked>>	97%	40364	90%	**43	95%
Ramshot Big Game	<<locked>>	87%	39885	89%	**13	96%
[Ramshot Hunter]*	<<locked>>	96%	39175	87%	**03	92%
ReloadSwiss RS 14	<<locked>>	97%	33460	74%	**27	100%
[ReloadSwiss RS 50]*	<<locked>>	88%	40451	90%	**54	92%
ReloadSwiss RS 52	<<locked>>	85%	39740	88%	**52	96%
ReloadSwiss RS 60 👍	<<locked>>	90%	39624	88%	**75	99%
[ReloadSwiss RS 62]*	<<locked>>	97%	39479	88%	**49	94%
[ReloadSwiss RS 70]*	<<locked>>	96%	40248	90%	**46	93%
Rottweil R 902	<<locked>>	85%	40277	90%	**48	98%
Rottweil R 903	<<locked>>	91%	39871	89%	**00	97%
SNPE Vectan SP 11	<<locked>>	89%	39581	88%	**10	96%
SNPE Vectan SP 9	<<locked>>	83%	39827	89%	**64	97%
SNPE Vectan Tubal 5000	<<locked>>	88%	39697	88%	**92	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	93%	39697	88%	**11	92%
[Shooters World Long Rifle]*	<<locked>>	93%	40451	90%	**61	93%
Shooters World Match Rifle	<<locked>>	84%	40422	90%	**93	99%
Shooters World Precision	<<locked>>	86%	39668	88%	**54	98%
Somchem S355	<<locked>>	90%	40408	90%	**93	97%
Somchem S365	<<locked>>	96%	35157	78%	**70	97%
Vihtavuori N133	<<locked>>	84%	40190	89%	**92	100%
Vihtavuori N135	<<locked>>	91%	39682	88%	**48	100%
Vihtavuori N140	<<locked>>	85%	40234	89%	**44	100%
Vihtavuori N150	<<locked>>	95%	40030	89%	**64	98%
Vihtavuori N160	<<locked>>	94%	40176	89%	**93	95%
Vihtavuori N540	<<locked>>	85%	39784	88%	**64	99%
Vihtavuori N550	<<locked>>	94%	39740	88%	**33	95%
Winchester 6.5 StaBALL	<<locked>>	95%	40132	89%	**70	97%
[Winchester 760]*	<<locked>>	92%	40335	90%	**26	91%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2208]*	<<locked>>	81%	32561	72%	**87	93%
Accurate 4064	<<locked>>	81%	31937	71%	**26	98%
[Accurate 4350]*	<<locked>>	88%	28572	64%	**83	90%
[Alliant Power Pro 2000-MR]*	<<locked>>	81%	34563	77%	**31	93%
Alliant Reloder- TS 15.5	<<locked>>	81%	31589	70%	**10	95%
[Alliant Reloder-15]*	<<locked>>	81%	34171	76%	**65	94%
[Alliant Reloder-16]*	<<locked>>	88%	30951	69%	**10	90%
[Alliant Reloder-17]*	<<locked>>	81%	27514	61%	**41	90%
[Baschieri & Pellagri 107]*	<<locked>>	81%	36999	82%	**25	94%
Bofors RP3	<<locked>>	81%	30763	68%	**03	95%
[Hodgdon CFE223]*	<<locked>>	81%	32547	72%	**49	92%
[Hodgdon H380]*	<<locked>>	81%	32140	71%	**06	91%
[Hodgdon H414]*	<<locked>>	90%	37391	83%	**67	90%
[Hodgdon Hybrid 100V]*	<<locked>>	86%	26397	59%	**72	90%
[Hodgdon LVR]*	<<locked>>	86%	31662	70%	**23	90%
[Hodgdon VARGET]*	<<locked>>	81%	32300	72%	**80	93%
Hodgdon TrailBoss	<<locked>>	84%	27528	61%	**80	100%
IMR 3031	<<locked>>	81%	34301	76%	**95	100%
[IMR 4064]*	<<locked>>	81%	31894	71%	**70	93%
[IMR 4166 Enduron]*	<<locked>>	86%	37188	83%	**43	90%
[IMR 4831]*	<<locked>>	91%	28703	64%	**64	90%
IMR 4895	<<locked>>	81%	34853	78%	**92	95%
Lovex D073.6	<<locked>>	81%	36376	81%	**18	99%
Lovex S062	<<locked>>	81%	33881	75%	**29	96%
[Lovex S065]*	<<locked>>	87%	32880	73%	**97	90%
[Lovex S070]*	<<locked>>	91%	35984	80%	**88	90%
Norma 201	<<locked>>	81%	37478	83%	**95	97%
Norma 203B	<<locked>>	81%	33562	75%	**56	95%
[Norma URP]*	<<locked>>	88%	30124	67%	**97	90%
[Ramshot Big Game]*	<<locked>>	81%	33025	73%	**56	94%
[Ramshot Hunter]*	<<locked>>	93%	35128	78%	**15	90%
ReloadSwiss RS 14	<<locked>>	81%	26324	59%	**86	100%
[ReloadSwiss RS 50]*	<<locked>>	83%	34780	77%	**36	90%
[ReloadSwiss RS 52]*	<<locked>>	81%	35244	78%	**54	94%
ReloadSwiss RS 60	<<locked>>	81%	29167	65%	**10	95%
[ReloadSwiss RS 62]*	<<locked>>	89%	30676	68%	**36	90%
[ReloadSwiss RS 70]*	<<locked>>	92%	34650	77%	**08	90%
Rottweil R 902	<<locked>>	81%	36013	80%	**59	97%
[Rottweil R 903]*	<<locked>>	81%	28935	64%	**51	93%
[SNPE Vectan SP 11]*	<<locked>>	81%	30385	68%	**93	92%
SNPE Vectan SP 9	<<locked>>	81%	36956	82%	**08	96%
SNPE Vectan Tubal 5000	<<locked>>	81%	32387	72%	**44	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	90%	35723	79%	**36	90%
[Shooters World Long Rifle]*	<<locked>>	87%	32880	73%	**97	90%
Shooters World Match Rifle	<<locked>>	81%	36376	81%	**18	99%
Shooters World Precision	<<locked>>	81%	33881	75%	**29	96%
[Somchem S355]*	<<locked>>	81%	30008	67%	**57	94%
[Somchem S365]*	<<locked>>	84%	24134	54%	**49	90%
Vihtavuori N133	<<locked>>	81%	37057	82%	**33	100%
Vihtavuori N135	<<locked>>	81%	29080	65%	**28	99%
Vihtavuori N140	<<locked>>	81%	35070	78%	**43	99%
[Vihtavuori N150]*	<<locked>>	81%	25614	57%	**26	93%
[Vihtavuori N160]*	<<locked>>	85%	30052	67%	**64	90%
Vihtavuori N540	<<locked>>	81%	34621	77%	**59	99%
[Vihtavuori N550]*	<<locked>>	85%	29834	66%	**93	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	26397	59%	**33	90%
[Winchester 760]*	<<locked>>	90%	37391	83%	**67	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