Load data for 8 x 56 R M 89 Port. Krop. + .323 | 180gr | Sako Powerhead

Recommended Powder(s): Accurate 4064, IMR 3031, ReloadSwiss RS 60, Vihtavuori N540, Winchester 748

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.323 \| 180gr \| Sako Powerhead
Manufacturer SKU:	SPH323.180
Bullet Weight:	180gr \| 11.7g
Bullet Diameter:	0.323" \| 8.20mm
Bullet Length:	<<locked>>
Caliber:	8 x 56 R M 89 Port. Krop. load data
Case Length (l3):	2.193" \| 55.7mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	66.0 Grains of Water \| 4.29 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	49313 psi \| 3400 bar
LID:	LID_B12014_C1169
Last updated:	2026-01-21
Recommended Twist Rate:	1:11 - 1:9

Load data for 150 loads in caliber 8 x 56 R M 89 Port. Krop. with .323 | 180gr | Sako Powerhead bullet and 75 powders such as Accurate 4064, IMR 3031, ReloadSwiss RS 60, Vihtavuori N540, Winchester 748. 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%	44179	90%	**56	97%
ADI AR 2208	<<locked>>	92%	43714	89%	**30	96%
Accurate 2200	<<locked>>	85%	44135	89%	**07	95%
Accurate 2495	<<locked>>	87%	44092	89%	**66	100%
Accurate 2520	<<locked>>	86%	43801	89%	**66	99%
Accurate 4064 👍	<<locked>>	93%	44295	90%	**79	100%
[Accurate 4350]*	<<locked>>	96%	35940	73%	**74	93%
Alliant AR-Comp	<<locked>>	87%	44367	90%	**59	100%
Alliant Power Pro 2000-MR	<<locked>>	89%	43337	88%	**28	96%
Alliant Reloder- TS 15.5	<<locked>>	94%	44382	90%	**85	98%
Alliant Reloder-15	<<locked>>	91%	43801	89%	**69	97%
[Alliant Reloder-16]*	<<locked>>	97%	38377	78%	**97	93%
Alliant Reloder-17	<<locked>>	97%	43352	88%	**41	97%
Baschieri & Pellagri 107	<<locked>>	88%	44106	89%	**72	96%
Bofors RP3	<<locked>>	93%	43830	89%	**85	98%
[Bofors RP7]*	<<locked>>	96%	44092	89%	**13	91%
Hodgdon BL-C2	<<locked>>	86%	44164	90%	**89	98%
Hodgdon Benchmark	<<locked>>	84%	44005	89%	**84	99%
Hodgdon CFE223	<<locked>>	92%	44237	90%	**08	96%
Hodgdon H322	<<locked>>	84%	44208	90%	**36	100%
Hodgdon H380	<<locked>>	93%	44353	90%	**72	95%
[Hodgdon H414]*	<<locked>>	96%	43990	89%	**98	92%
[Hodgdon Hybrid 100V]*	<<locked>>	97%	34940	71%	**95	94%
[Hodgdon LVR]*	<<locked>>	96%	41089	83%	**36	94%
Hodgdon VARGET	<<locked>>	93%	44150	90%	**36	96%
IMR 3031 👍	<<locked>>	91%	43787	89%	**89	100%
IMR 4064	<<locked>>	93%	44280	90%	**36	97%
[IMR 4166 Enduron]*	<<locked>>	93%	43859	89%	**77	92%
[IMR 4451 Enduron]*	<<locked>>	95%	43918	89%	**13	92%
IMR 4895	<<locked>>	90%	43918	89%	**92	97%
IMR 8208 XBR	<<locked>>	85%	43990	89%	**26	98%
Lovex D073.6	<<locked>>	88%	44324	90%	**72	100%
Lovex S060	<<locked>>	86%	44295	90%	**87	97%
Lovex S062	<<locked>>	91%	44121	89%	**43	98%
[Lovex S065]*	<<locked>>	97%	42569	86%	**03	94%
Norma 201	<<locked>>	88%	44034	89%	**26	98%
Norma 202	<<locked>>	88%	43830	89%	**39	100%
Norma 203B	<<locked>>	91%	43903	89%	**72	97%
[Norma URP]*	<<locked>>	97%	37478	76%	**80	93%
Ramshot Big Game	<<locked>>	91%	43714	89%	**85	97%
[Ramshot TAC]*	<<locked>>	85%	44338	90%	**23	94%
Ramshot Wild Boar	<<locked>>	86%	44150	90%	**66	97%
[ReloadSwiss RS 50]*	<<locked>>	92%	44222	90%	**30	93%
ReloadSwiss RS 52	<<locked>>	90%	44280	90%	**44	97%
ReloadSwiss RS 60 👍	<<locked>>	95%	43932	89%	**67	99%
[ReloadSwiss RS 62]*	<<locked>>	97%	37115	75%	**97	93%
Rottweil R 901	<<locked>>	85%	44121	89%	**10	100%
Rottweil R 902	<<locked>>	90%	44179	90%	**26	98%
Rottweil R 903	<<locked>>	95%	43569	88%	**72	98%
[Rottweil R 907]*	<<locked>>	96%	44092	89%	**13	91%
SNPE Vectan SP 11	<<locked>>	94%	43816	89%	**98	97%
SNPE Vectan SP 7	<<locked>>	87%	43772	89%	**23	95%
SNPE Vectan SP 9	<<locked>>	88%	43888	89%	**49	97%
SNPE Vectan Tubal 3000	<<locked>>	86%	44106	89%	**57	100%
SNPE Vectan Tubal 5000	<<locked>>	92%	43613	88%	**64	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	97%	41989	85%	**54	92%
[Shooters World Long Rifle]*	<<locked>>	97%	42569	86%	**03	94%
Shooters World Match Rifle	<<locked>>	88%	44324	90%	**72	100%
Shooters World Precision	<<locked>>	91%	44121	89%	**43	98%
Somchem S321	<<locked>>	83%	44367	90%	**52	99%
Somchem S335	<<locked>>	87%	43787	89%	**70	100%
Somchem S341	<<locked>>	87%	44179	90%	**43	97%
Somchem S355	<<locked>>	95%	44193	90%	**72	98%
Somchem S365	<<locked>>	97%	33721	68%	**38	96%
Vihtavuori N133	<<locked>>	89%	44048	89%	**67	100%
Vihtavuori N135	<<locked>>	97%	44367	90%	**39	100%
Vihtavuori N140	<<locked>>	90%	44034	89%	**23	100%
Vihtavuori N150	<<locked>>	97%	39262	80%	**54	98%
Vihtavuori N160	<<locked>>	96%	41278	84%	**20	95%
Vihtavuori N530	<<locked>>	84%	44280	90%	**43	98%
Vihtavuori N540 👍	<<locked>>	90%	43729	89%	**46	100%
Vihtavuori N550	<<locked>>	97%	41539	84%	**66	95%
Winchester 6.5 StaBALL	<<locked>>	96%	40785	83%	**80	97%
Winchester 748 👍	<<locked>>	84%	44005	89%	**85	99%
[Winchester 760]*	<<locked>>	96%	43990	89%	**98	92%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	36550	74%	**05	95%
[ADI AR 2208]*	<<locked>>	81%	31212	63%	**60	92%
[Accurate 2200]*	<<locked>>	81%	38609	78%	**05	94%
Accurate 2495	<<locked>>	81%	35926	73%	**15	100%
Accurate 2520	<<locked>>	81%	36680	74%	**34	98%
Accurate 4064	<<locked>>	81%	30356	62%	**93	98%
[Accurate 4350]*	<<locked>>	91%	29921	61%	**29	90%
Alliant AR-Comp	<<locked>>	81%	36956	75%	**38	100%
[Alliant Power Pro 2000-MR]*	<<locked>>	81%	32982	67%	**82	91%
[Alliant Reloder- TS 15.5]*	<<locked>>	81%	29617	60%	**67	93%
[Alliant Reloder-15]*	<<locked>>	81%	32416	66%	**29	93%
[Alliant Reloder-16]*	<<locked>>	91%	32111	65%	**43	90%
[Alliant Reloder-17]*	<<locked>>	84%	28587	58%	**74	90%
[Baschieri & Pellagri 107]*	<<locked>>	81%	35476	72%	**95	93%
[Bofors RP3]*	<<locked>>	81%	28935	59%	**64	93%
[Bofors RP7]*	<<locked>>	94%	40799	83%	**51	90%
Hodgdon BL-C2	<<locked>>	81%	36811	75%	**48	97%
Hodgdon Benchmark	<<locked>>	81%	40857	83%	**28	98%
[Hodgdon CFE223]*	<<locked>>	81%	30922	63%	**10	90%
Hodgdon H322	<<locked>>	81%	40785	83%	**80	100%
[Hodgdon H380]*	<<locked>>	82%	31488	64%	**97	90%
[Hodgdon H414]*	<<locked>>	93%	39465	80%	**07	90%
[Hodgdon Hybrid 100V]*	<<locked>>	89%	27427	56%	**01	90%
[Hodgdon LVR]*	<<locked>>	89%	33054	67%	**62	90%
[Hodgdon VARGET]*	<<locked>>	81%	30864	63%	**51	91%
IMR 3031	<<locked>>	81%	32387	66%	**62	99%
[IMR 4064]*	<<locked>>	81%	30284	61%	**31	92%
[IMR 4166 Enduron]*	<<locked>>	89%	39305	80%	**92	90%
[IMR 4451 Enduron]*	<<locked>>	91%	39479	80%	**28	90%
[IMR 4895]*	<<locked>>	81%	33185	67%	**62	94%
IMR 8208 XBR	<<locked>>	81%	38580	78%	**25	97%
Lovex D073.6	<<locked>>	81%	34301	70%	**82	98%
Lovex S060	<<locked>>	81%	37362	76%	**52	95%
Lovex S062	<<locked>>	81%	31923	65%	**93	95%
[Lovex S065]*	<<locked>>	90%	34171	69%	**29	90%
Norma 201	<<locked>>	81%	35839	73%	**69	96%
Norma 202	<<locked>>	81%	35679	72%	**82	99%
[Norma 203B]*	<<locked>>	81%	31937	65%	**23	93%
[Norma URP]*	<<locked>>	91%	31227	63%	**33	90%
[Ramshot Big Game]*	<<locked>>	81%	31430	64%	**20	92%
[Ramshot TAC]*	<<locked>>	81%	38392	78%	**08	92%
Ramshot Wild Boar	<<locked>>	81%	37405	76%	**31	95%
[ReloadSwiss RS 50]*	<<locked>>	86%	36289	74%	**75	90%
[ReloadSwiss RS 52]*	<<locked>>	81%	33330	68%	**08	93%
[ReloadSwiss RS 60]*	<<locked>>	81%	27804	56%	**60	93%
[ReloadSwiss RS 62]*	<<locked>>	92%	32082	65%	**79	90%
Rottweil R 901	<<locked>>	81%	39407	80%	**21	99%
Rottweil R 902	<<locked>>	81%	34069	69%	**20	96%
[Rottweil R 903]*	<<locked>>	81%	27209	55%	**11	92%
[Rottweil R 907]*	<<locked>>	94%	40799	83%	**51	90%
[SNPE Vectan SP 11]*	<<locked>>	81%	28877	59%	**57	91%
[SNPE Vectan SP 7]*	<<locked>>	81%	36274	74%	**75	92%
[SNPE Vectan SP 9]*	<<locked>>	81%	35114	71%	**72	94%
SNPE Vectan Tubal 3000	<<locked>>	81%	37579	76%	**43	99%
SNPE Vectan Tubal 5000	<<locked>>	81%	30748	62%	**18	98%
[SNPE Vectan Tubal 7000]*	<<locked>>	93%	37304	76%	**72	90%
[Shooters World Long Rifle]*	<<locked>>	90%	34171	69%	**29	90%
Shooters World Match Rifle	<<locked>>	81%	34301	70%	**82	98%
Shooters World Precision	<<locked>>	81%	31923	65%	**93	95%
Somchem S321	<<locked>>	81%	41249	84%	**00	98%
Somchem S335	<<locked>>	81%	37115	75%	**49	99%
Somchem S341	<<locked>>	81%	36085	73%	**85	95%
[Somchem S355]*	<<locked>>	81%	28529	58%	**28	92%
[Somchem S365]*	<<locked>>	87%	25193	51%	**85	90%
Vihtavuori N133	<<locked>>	81%	35143	71%	**06	100%
Vihtavuori N135	<<locked>>	81%	27557	56%	**01	98%
Vihtavuori N140	<<locked>>	81%	33011	67%	**10	98%
[Vihtavuori N150]*	<<locked>>	81%	24236	49%	**93	92%
[Vihtavuori N160]*	<<locked>>	88%	31401	64%	**97	90%
Vihtavuori N530	<<locked>>	81%	40277	82%	**67	98%
Vihtavuori N540	<<locked>>	81%	32953	67%	**33	98%
[Vihtavuori N550]*	<<locked>>	87%	30922	63%	**33	90%
[Winchester 6.5 StaBALL]*	<<locked>>	84%	27557	56%	**62	90%
Winchester 748	<<locked>>	81%	40059	81%	**13	98%
[Winchester 760]*	<<locked>>	93%	39465	80%	**07	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