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

Recommended Powder(s): Alliant Reloder- TS 15.5, Bofors RP3, ReloadSwiss RS 60, Rottweil R 903, Somchem S355

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:	1.425" \| 36.2mm
Caliber:	8 x 56 R M 89 Port. Krop. load data
Case Length (l3):	2.193" \| 55.7mm
Cartridge Length (C.O.L.):	3.141" \| 79.8mm
Seated Depth:	0.477" \| 12.1mm
Shank Seated Depth:	0.319" \| 8.1mm
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:	2025-12-09
Recommended Twist Rate:	1:11 - 1:9

Load data for 142 loads in caliber 8 x 56 R M 89 Port. Krop. with .323 | 180gr | Sako Powerhead bullet and 71 powders such as Alliant Reloder- TS 15.5, Bofors RP3, ReloadSwiss RS 60, Rottweil R 903, Somchem S355. 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%	44164	90%	**05	98%
ADI AR 2208	<<locked>>	89%	43859	89%	**82	97%
Accurate 2495	<<locked>>	83%	44179	90%	**95	100%
[Accurate 2700]*	<<locked>>	90%	43961	89%	**16	92%
Accurate 4064	<<locked>>	89%	44005	89%	**15	100%
Accurate 4350	<<locked>>	97%	42453	86%	**48	96%
Alliant Reloder- TS 15.5 👍	<<locked>>	90%	44280	90%	**21	99%
Alliant Reloder-15	<<locked>>	87%	43830	89%	**18	97%
Alliant Reloder-16	<<locked>>	97%	42656	87%	**54	97%
Alliant Reloder-17	<<locked>>	94%	43903	89%	**07	98%
[Alliant Reloder-23]*	<<locked>>	97%	30255	61%	**72	93%
Baschieri & Pellagri 107	<<locked>>	84%	43859	89%	**15	97%
Bofors RP3 👍	<<locked>>	89%	43772	89%	**28	99%
[Bofors RP7]*	<<locked>>	92%	43743	89%	**62	92%
Hodgdon CFE223	<<locked>>	88%	43685	89%	**51	97%
Hodgdon H380	<<locked>>	89%	44353	90%	**18	96%
[Hodgdon H414]*	<<locked>>	92%	43990	89%	**57	93%
[Hodgdon H4350]*	<<locked>>	97%	41611	84%	**39	91%
Hodgdon Hybrid 100V	<<locked>>	97%	39117	79%	**43	97%
Hodgdon LVR	<<locked>>	95%	43932	89%	**44	96%
[Hodgdon Superperformance]*	<<locked>>	95%	43888	89%	**54	92%
Hodgdon VARGET	<<locked>>	89%	44092	89%	**85	97%
IMR 3031	<<locked>>	87%	43947	89%	**18	100%
IMR 4064	<<locked>>	89%	43642	88%	**69	97%
[IMR 4166 Enduron]*	<<locked>>	89%	43787	89%	**33	93%
[IMR 4350]*	<<locked>>	96%	43700	89%	**85	92%
[IMR 4451 Enduron]*	<<locked>>	91%	44063	89%	**69	93%
IMR 4831	<<locked>>	97%	36637	74%	**07	95%
IMR 4895	<<locked>>	86%	44092	89%	**35	98%
Lovex D073.6	<<locked>>	85%	44324	90%	**08	100%
Lovex S060	<<locked>>	83%	44208	90%	**39	98%
Lovex S062	<<locked>>	88%	44222	90%	**92	99%
Lovex S065	<<locked>>	94%	43990	89%	**82	95%
[Lovex S070]*	<<locked>>	96%	44353	90%	**05	94%
Norma 201	<<locked>>	84%	44338	90%	**75	99%
Norma 202	<<locked>>	84%	44179	90%	**89	100%
Norma 203B	<<locked>>	87%	43700	89%	**15	98%
Norma URP	<<locked>>	96%	42351	86%	**35	96%
Ramshot Big Game	<<locked>>	88%	44338	90%	**51	98%
[Ramshot Hunter]*	<<locked>>	97%	42308	86%	**25	94%
ReloadSwiss RS 14	<<locked>>	97%	33736	68%	**77	100%
[ReloadSwiss RS 50]*	<<locked>>	88%	44005	89%	**79	94%
ReloadSwiss RS 52	<<locked>>	86%	44034	89%	**90	98%
ReloadSwiss RS 60 👍	<<locked>>	91%	44034	89%	**23	100%
ReloadSwiss RS 62	<<locked>>	97%	42105	85%	**54	96%
ReloadSwiss RS 70	<<locked>>	97%	43482	88%	**74	95%
Rottweil R 902	<<locked>>	86%	44106	89%	**69	99%
Rottweil R 903 👍	<<locked>>	92%	43976	89%	**28	99%
[Rottweil R 907]*	<<locked>>	92%	43743	89%	**62	92%
SNPE Vectan SP 11	<<locked>>	91%	44179	90%	**51	98%
SNPE Vectan SP 7	<<locked>>	84%	44309	90%	**82	96%
SNPE Vectan SP 9	<<locked>>	85%	43947	89%	**95	98%
SNPE Vectan Tubal 5000	<<locked>>	89%	43961	89%	**13	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	94%	43874	89%	**33	93%
Shooters World Long Rifle	<<locked>>	94%	43990	89%	**82	95%
Shooters World Match Rifle	<<locked>>	85%	44324	90%	**08	100%
Shooters World Precision	<<locked>>	88%	44222	90%	**92	99%
Somchem S335	<<locked>>	83%	43903	89%	**13	100%
Somchem S341	<<locked>>	84%	44106	89%	**89	98%
Somchem S355 👍	<<locked>>	91%	43845	89%	**05	98%
Somchem S365	<<locked>>	96%	37768	77%	**79	98%
Vihtavuori N133	<<locked>>	85%	43845	89%	**03	100%
Vihtavuori N135	<<locked>>	92%	44353	90%	**75	100%
Vihtavuori N140	<<locked>>	86%	44266	90%	**69	100%
Vihtavuori N150	<<locked>>	96%	43859	89%	**79	99%
Vihtavuori N160	<<locked>>	95%	43976	89%	**25	96%
Vihtavuori N540	<<locked>>	86%	43859	89%	**82	100%
Vihtavuori N550	<<locked>>	94%	44063	89%	**64	97%
[Vihtavuori N555]*	<<locked>>	97%	31720	64%	**48	93%
Winchester 6.5 StaBALL	<<locked>>	95%	43830	89%	**92	98%
[Winchester 760]*	<<locked>>	92%	43990	89%	**57	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	40625	82%	**33	97%
[ADI AR 2208]*	<<locked>>	81%	34548	70%	**85	94%
Accurate 2495	<<locked>>	81%	41017	83%	**46	100%
[Accurate 2700]*	<<locked>>	86%	38638	78%	**11	90%
Accurate 4064	<<locked>>	81%	34505	70%	**28	99%
[Accurate 4350]*	<<locked>>	85%	27891	57%	**10	90%
Alliant Reloder- TS 15.5	<<locked>>	81%	33562	68%	**05	96%
Alliant Reloder-15	<<locked>>	81%	36463	74%	**67	95%
[Alliant Reloder-16]*	<<locked>>	85%	29733	60%	**26	90%
[Alliant Reloder-17]*	<<locked>>	81%	29153	59%	**49	92%
[Alliant Reloder-23]*	<<locked>>	93%	27064	55%	**77	90%
Baschieri & Pellagri 107	<<locked>>	81%	39726	81%	**36	96%
Bofors RP3	<<locked>>	81%	33127	67%	**05	96%
[Bofors RP7]*	<<locked>>	88%	37652	76%	**34	90%
[Hodgdon CFE223]*	<<locked>>	81%	34679	70%	**57	94%
[Hodgdon H380]*	<<locked>>	81%	34258	69%	**08	93%
[Hodgdon H414]*	<<locked>>	87%	36027	73%	**87	90%
[Hodgdon H4350]*	<<locked>>	94%	38276	78%	**70	90%
[Hodgdon Hybrid 100V]*	<<locked>>	83%	25222	51%	**82	90%
[Hodgdon LVR]*	<<locked>>	84%	30922	63%	**49	90%
[Hodgdon Superperformance]*	<<locked>>	92%	39769	81%	**72	90%
[Hodgdon VARGET]*	<<locked>>	81%	34330	70%	**82	94%
IMR 3031	<<locked>>	81%	36492	74%	**84	100%
[IMR 4064]*	<<locked>>	81%	33924	69%	**62	94%
[IMR 4166 Enduron]*	<<locked>>	83%	35926	73%	**69	90%
[IMR 4350]*	<<locked>>	92%	38319	78%	**70	90%
[IMR 4451 Enduron]*	<<locked>>	85%	36289	74%	**05	90%
[IMR 4831]*	<<locked>>	88%	27876	57%	**80	90%
IMR 4895	<<locked>>	81%	37231	75%	**93	96%
Lovex D073.6	<<locked>>	81%	39175	79%	**20	99%
Lovex S060	<<locked>>	81%	41307	84%	**84	97%
Lovex S062	<<locked>>	81%	36013	73%	**25	97%
[Lovex S065]*	<<locked>>	83%	31575	64%	**10	90%
[Lovex S070]*	<<locked>>	88%	34954	71%	**08	90%
Norma 201	<<locked>>	81%	40045	81%	**97	98%
Norma 202	<<locked>>	81%	39987	81%	**10	100%
Norma 203B	<<locked>>	81%	35708	72%	**54	96%
[Norma URP]*	<<locked>>	84%	28819	58%	**06	90%
Ramshot Big Game	<<locked>>	81%	35230	71%	**61	95%
[Ramshot Hunter]*	<<locked>>	90%	34185	69%	**48	90%
ReloadSwiss RS 14	<<locked>>	94%	32227	65%	**47	100%
[ReloadSwiss RS 50]*	<<locked>>	81%	34896	71%	**92	91%
ReloadSwiss RS 52	<<locked>>	81%	37420	76%	**49	96%
ReloadSwiss RS 60	<<locked>>	81%	31154	63%	**18	97%
[ReloadSwiss RS 62]*	<<locked>>	86%	29675	60%	**62	90%
[ReloadSwiss RS 70]*	<<locked>>	88%	32996	67%	**28	90%
Rottweil R 902	<<locked>>	81%	37797	77%	**41	98%
Rottweil R 903	<<locked>>	81%	30980	63%	**46	95%
[Rottweil R 907]*	<<locked>>	88%	37652	76%	**34	90%
[SNPE Vectan SP 11]*	<<locked>>	81%	32329	66%	**92	94%
SNPE Vectan SP 7	<<locked>>	81%	40669	82%	**16	95%
SNPE Vectan SP 9	<<locked>>	81%	38986	79%	**03	97%
SNPE Vectan Tubal 5000	<<locked>>	81%	34272	70%	**29	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	87%	34795	71%	**56	90%
[Shooters World Long Rifle]*	<<locked>>	83%	31575	64%	**10	90%
Shooters World Match Rifle	<<locked>>	81%	39175	79%	**20	99%
Shooters World Precision	<<locked>>	81%	36013	73%	**25	97%
Somchem S335	<<locked>>	81%	41220	84%	**67	100%
Somchem S341	<<locked>>	81%	40567	82%	**23	97%
Somchem S355	<<locked>>	81%	32300	66%	**62	95%
[Somchem S365]*	<<locked>>	81%	23351	47%	**69	90%
Vihtavuori N133	<<locked>>	81%	38827	79%	**15	100%
Vihtavuori N135	<<locked>>	81%	31009	63%	**13	99%
Vihtavuori N140	<<locked>>	81%	37130	75%	**38	100%
Vihtavuori N150	<<locked>>	81%	27441	56%	**21	95%
[Vihtavuori N160]*	<<locked>>	82%	28979	59%	**77	90%
Vihtavuori N540	<<locked>>	81%	37043	75%	**54	99%
[Vihtavuori N550]*	<<locked>>	82%	28921	59%	**13	90%
[Vihtavuori N555]*	<<locked>>	92%	27195	55%	**16	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	27659	56%	**15	92%
[Winchester 760]*	<<locked>>	87%	36027	73%	**87	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