Load data for 8 x 57 IRS + .323 | 175gr | Sierra SPT Pro-Hunter

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.323 \| 175gr \| Sierra SPT Pro-Hunter
Manufacturer SKU:	2410
Bullet Weight:	175gr \| 11.3g
Bullet Diameter:	0.323" \| 8.20mm
Bullet Length:	<<locked>>
Caliber:	8 x 57 IRS load data
Case Length (l3):	2.244" \| 57.0mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	64.0 Grains of Water \| 4.16 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	47863 psi \| 3300 bar
LID:	LID_B5921_C1173
Last updated:	2026-02-05

Load data for 142 loads in caliber 8 x 57 IRS with .323 | 175gr | Sierra SPT Pro-Hunter bullet and 71 powder(s). 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".

Go to the bottom of the "Dashboard " page to set the measure system (imperial vs. metric)
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C.O.L. (mm)
We recommend you limit powder range to relevant brands to speed up re-calculation of results
Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

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>>	85%	42453	89%	**75	97%
ADI AR 2208	<<locked>>	90%	42656	89%	**62	96%
Accurate 2200	<<locked>>	83%	42830	89%	**46	95%
Accurate 2495	<<locked>>	85%	42525	89%	**89	100%
Accurate 2520	<<locked>>	84%	42511	89%	**92	99%
Accurate 4064 👍	<<locked>>	91%	42728	89%	**05	100%
[Accurate 4350]*	<<locked>>	97%	37768	79%	**62	94%
Alliant AR-Comp	<<locked>>	85%	42946	90%	**92	100%
Alliant Power Pro 2000-MR	<<locked>>	88%	42453	89%	**67	95%
Alliant Reloder- TS 15.5	<<locked>>	91%	42525	89%	**05	98%
Alliant Reloder-15	<<locked>>	89%	42931	90%	**05	96%
[Alliant Reloder-16]*	<<locked>>	97%	39102	82%	**72	94%
Alliant Reloder-17	<<locked>>	95%	42612	89%	**84	97%
Baschieri & Pellagri 107	<<locked>>	86%	42409	89%	**92	96%
Bofors RP3	<<locked>>	91%	42554	89%	**15	98%
Hodgdon BL-C2	<<locked>>	85%	42917	90%	**21	98%
Hodgdon CFE223	<<locked>>	90%	42525	89%	**35	95%
Hodgdon H380	<<locked>>	90%	42670	89%	**89	95%
[Hodgdon H414]*	<<locked>>	94%	42612	89%	**31	92%
Hodgdon H4895	<<locked>>	85%	42714	89%	**92	97%
Hodgdon Hybrid 100V	<<locked>>	97%	35708	75%	**70	95%
[Hodgdon LVR]*	<<locked>>	97%	42714	89%	**31	94%
Hodgdon VARGET	<<locked>>	91%	43047	90%	**75	96%
IMR 3031	<<locked>>	89%	42757	89%	**21	100%
IMR 4064	<<locked>>	91%	42438	89%	**56	96%
[IMR 4166 Enduron]*	<<locked>>	91%	42931	90%	**20	92%
[IMR 4451 Enduron]*	<<locked>>	93%	43004	90%	**49	92%
[IMR 4831]*	<<locked>>	97%	33098	69%	**31	92%
IMR 4895	<<locked>>	88%	42264	88%	**08	97%
IMR 8208 XBR	<<locked>>	83%	42482	89%	**52	98%
Lovex D073.6 👍	<<locked>>	86%	42801	89%	**05	99%
Lovex S060	<<locked>>	84%	42714	89%	**16	97%
Lovex S062	<<locked>>	89%	42293	88%	**66	98%
[Lovex S065]*	<<locked>>	96%	42888	90%	**69	94%
[Lovex S070]*	<<locked>>	97%	41365	86%	**56	92%
Norma 201	<<locked>>	86%	42670	89%	**59	98%
Norma 202	<<locked>>	86%	43018	90%	**82	100%
Norma 203B	<<locked>>	89%	42815	89%	**12	97%
[Norma URP]*	<<locked>>	97%	39117	82%	**69	94%
Ramshot Big Game	<<locked>>	89%	42699	89%	**21	97%
[Ramshot TAC]*	<<locked>>	84%	43004	90%	**56	94%
Ramshot Wild Boar	<<locked>>	84%	42656	89%	**95	97%
[ReloadSwiss RS 50]*	<<locked>>	90%	43076	90%	**66	93%
ReloadSwiss RS 52	<<locked>>	88%	42989	90%	**74	96%
ReloadSwiss RS 60 👍	<<locked>>	93%	42409	89%	**90	99%
[ReloadSwiss RS 62]*	<<locked>>	97%	38551	81%	**85	93%
[ReloadSwiss RS 70]*	<<locked>>	97%	39755	83%	**85	92%
Rottweil R 902	<<locked>>	87%	42757	89%	**49	98%
Rottweil R 903	<<locked>>	93%	42511	89%	**05	98%
SNPE Vectan SP 11	<<locked>>	92%	42772	89%	**35	97%
SNPE Vectan SP 7	<<locked>>	85%	42801	89%	**59	95%
SNPE Vectan SP 9	<<locked>>	86%	42482	89%	**82	97%
SNPE Vectan Tubal 3000	<<locked>>	84%	43033	90%	**97	100%
SNPE Vectan Tubal 5000	<<locked>>	91%	43033	90%	**10	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	96%	42380	89%	**13	92%
[Shooters World Long Rifle]*	<<locked>>	96%	42888	90%	**69	94%
Shooters World Match Rifle 👍	<<locked>>	86%	42801	89%	**05	99%
Shooters World Precision	<<locked>>	89%	42293	88%	**66	98%
Somchem S335	<<locked>>	85%	43047	90%	**10	100%
Somchem S341	<<locked>>	85%	42467	89%	**66	97%
Somchem S355	<<locked>>	93%	43004	90%	**98	97%
Somchem S365	<<locked>>	97%	34751	73%	**16	96%
Vihtavuori N133	<<locked>>	87%	42873	90%	**03	100%
Vihtavuori N135	<<locked>>	94%	42366	89%	**56	100%
Vihtavuori N140	<<locked>>	88%	42786	89%	**52	100%
Vihtavuori N150	<<locked>>	97%	41176	86%	**49	98%
Vihtavuori N160	<<locked>>	96%	42482	89%	**02	95%
Vihtavuori N540	<<locked>>	88%	42496	89%	**75	100%
Vihtavuori N550	<<locked>>	96%	42598	89%	**44	95%
Winchester 6.5 StaBALL	<<locked>>	97%	42627	89%	**69	97%
[Winchester 760]*	<<locked>>	94%	42612	89%	**31	92%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	37536	78%	**80	95%
[ADI AR 2208]*	<<locked>>	81%	32111	67%	**29	92%
[Accurate 2200]*	<<locked>>	81%	39856	83%	**87	94%
Accurate 2495	<<locked>>	81%	37347	78%	**93	100%
Accurate 2520	<<locked>>	81%	38101	80%	**13	99%
Accurate 4064	<<locked>>	81%	31415	66%	**69	98%
[Accurate 4350]*	<<locked>>	90%	30023	63%	**72	90%
Alliant AR-Comp	<<locked>>	81%	38276	80%	**16	100%
[Alliant Power Pro 2000-MR]*	<<locked>>	81%	33837	71%	**61	92%
[Alliant Reloder- TS 15.5]*	<<locked>>	81%	30777	64%	**49	94%
[Alliant Reloder-15]*	<<locked>>	81%	33489	70%	**08	93%
[Alliant Reloder-16]*	<<locked>>	90%	32039	67%	**92	90%
[Alliant Reloder-17]*	<<locked>>	82%	28239	59%	**13	90%
[Baschieri & Pellagri 107]*	<<locked>>	81%	36347	76%	**67	93%
[Bofors RP3]*	<<locked>>	81%	29791	62%	**33	94%
Hodgdon BL-C2	<<locked>>	81%	38116	80%	**26	97%
[Hodgdon CFE223]*	<<locked>>	81%	31923	67%	**82	91%
[Hodgdon H380]*	<<locked>>	81%	31575	66%	**43	90%
[Hodgdon H414]*	<<locked>>	92%	39088	82%	**56	90%
Hodgdon H4895	<<locked>>	81%	37739	79%	**87	96%
[Hodgdon Hybrid 100V]*	<<locked>>	88%	27485	57%	**51	90%
[Hodgdon LVR]*	<<locked>>	88%	32924	69%	**08	90%
[Hodgdon VARGET]*	<<locked>>	81%	31763	66%	**23	92%
IMR 3031	<<locked>>	81%	33257	69%	**31	99%
[IMR 4064]*	<<locked>>	81%	31415	66%	**10	92%
[IMR 4166 Enduron]*	<<locked>>	87%	38754	81%	**34	90%
[IMR 4451 Enduron]*	<<locked>>	90%	39392	82%	**77	90%
[IMR 4831]*	<<locked>>	94%	30298	63%	**59	90%
[IMR 4895]*	<<locked>>	81%	34142	71%	**34	94%
IMR 8208 XBR	<<locked>>	81%	39566	83%	**00	97%
Lovex D073.6	<<locked>>	81%	35563	74%	**61	98%
Lovex S060	<<locked>>	81%	38479	80%	**31	96%
Lovex S062	<<locked>>	81%	32924	69%	**69	95%
[Lovex S065]*	<<locked>>	88%	34171	71%	**79	90%
[Lovex S070]*	<<locked>>	94%	37971	79%	**80	90%
Norma 201	<<locked>>	81%	36840	77%	**38	97%
Norma 202	<<locked>>	81%	36695	77%	**57	99%
[Norma 203B]*	<<locked>>	81%	32750	68%	**92	94%
[Norma URP]*	<<locked>>	89%	31067	65%	**75	90%
[Ramshot Big Game]*	<<locked>>	81%	32430	68%	**98	93%
[Ramshot TAC]*	<<locked>>	81%	39494	83%	**84	93%
Ramshot Wild Boar	<<locked>>	81%	38421	80%	**10	96%
[ReloadSwiss RS 50]*	<<locked>>	85%	36999	77%	**38	90%
[ReloadSwiss RS 52]*	<<locked>>	81%	34432	72%	**90	93%
[ReloadSwiss RS 60]*	<<locked>>	81%	28645	60%	**43	94%
[ReloadSwiss RS 62]*	<<locked>>	91%	31821	66%	**21	90%
[ReloadSwiss RS 70]*	<<locked>>	94%	36463	76%	**10	90%
Rottweil R 902	<<locked>>	81%	35157	73%	**98	96%
[Rottweil R 903]*	<<locked>>	81%	28311	59%	**83	92%
[SNPE Vectan SP 11]*	<<locked>>	81%	29762	62%	**29	91%
[SNPE Vectan SP 7]*	<<locked>>	81%	37217	78%	**51	93%
SNPE Vectan SP 9	<<locked>>	81%	36187	76%	**51	95%
SNPE Vectan Tubal 3000	<<locked>>	81%	38551	81%	**15	99%
SNPE Vectan Tubal 5000	<<locked>>	81%	31357	66%	**80	98%
[SNPE Vectan Tubal 7000]*	<<locked>>	92%	37333	78%	**21	90%
[Shooters World Long Rifle]*	<<locked>>	88%	34171	71%	**79	90%
Shooters World Match Rifle	<<locked>>	81%	35563	74%	**61	98%
Shooters World Precision	<<locked>>	81%	32924	69%	**69	95%
Somchem S335	<<locked>>	81%	38087	80%	**21	99%
Somchem S341	<<locked>>	81%	36869	77%	**57	95%
[Somchem S355]*	<<locked>>	81%	29559	62%	**00	93%
[Somchem S365]*	<<locked>>	86%	24990	52%	**24	90%
Vihtavuori N133	<<locked>>	81%	36361	76%	**85	100%
Vihtavuori N135	<<locked>>	81%	28543	60%	**70	99%
Vihtavuori N140	<<locked>>	81%	34389	72%	**92	99%
[Vihtavuori N150]*	<<locked>>	81%	25092	52%	**62	92%
[Vihtavuori N160]*	<<locked>>	87%	31575	66%	**49	90%
Vihtavuori N540	<<locked>>	81%	33808	71%	**98	98%
[Vihtavuori N550]*	<<locked>>	87%	31009	65%	**79	90%
[Winchester 6.5 StaBALL]*	<<locked>>	83%	27557	58%	**15	90%
[Winchester 760]*	<<locked>>	92%	39088	82%	**56	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