Load data for 8 x 57 IRS + .323 | 150gr | Sierra SPT Pro-Hunter

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.323 \| 150gr \| Sierra SPT Pro-Hunter
Manufacturer SKU:	2400
Bullet Weight:	150gr \| 9.7g
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_B5920_C1173
Last updated:	2026-01-20

Load data for 126 loads in caliber 8 x 57 IRS with .323 | 150gr | Sierra SPT Pro-Hunter bullet and 63 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".

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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>>	88%	42873	90%	**82	95%
[ADI AR 2208]*	<<locked>>	93%	42569	89%	**49	94%
Accurate 2015	<<locked>>	84%	42395	89%	**23	100%
[Accurate 2200]*	<<locked>>	86%	42250	88%	**17	93%
Accurate 2460	<<locked>>	83%	42888	90%	**59	98%
Accurate 2495	<<locked>>	89%	42583	89%	**05	100%
Accurate 2520	<<locked>>	88%	42583	89%	**99	98%
Accurate 4064 👍	<<locked>>	94%	42380	89%	**08	99%
Alliant AR-Comp	<<locked>>	88%	42728	89%	**05	100%
[Alliant Power Pro 2000-MR]*	<<locked>>	91%	42511	89%	**48	93%
Alliant Reloder- TS 15.5	<<locked>>	95%	42830	89%	**05	96%
[Alliant Reloder-15]*	<<locked>>	92%	42873	90%	**05	94%
[Alliant Reloder-17]*	<<locked>>	97%	40059	84%	**99	94%
[Baschieri & Pellagri 107]*	<<locked>>	89%	42931	90%	**89	93%
Bofors RP3	<<locked>>	95%	42598	89%	**12	96%
Hodgdon BL-C2	<<locked>>	88%	42627	89%	**12	97%
Hodgdon Benchmark	<<locked>>	84%	42351	88%	**00	97%
[Hodgdon CFE223]*	<<locked>>	93%	42728	89%	**15	93%
Hodgdon H322	<<locked>>	85%	43062	90%	**82	99%
[Hodgdon H380]*	<<locked>>	94%	42917	90%	**79	93%
[Hodgdon VARGET]*	<<locked>>	94%	42946	90%	**56	94%
Hodgdon TrailBoss	<<locked>>	97%	32343	68%	**65	100%
IMR 3031 👍	<<locked>>	93%	42960	90%	**38	100%
[IMR 4064]*	<<locked>>	94%	42525	89%	**43	94%
IMR 4895	<<locked>>	91%	42627	89%	**12	95%
IMR 8208 XBR	<<locked>>	86%	42409	89%	**49	96%
Lovex D073.5	<<locked>>	83%	42453	89%	**43	97%
Lovex D073.6 👍	<<locked>>	90%	43047	90%	**05	98%
Lovex S060	<<locked>>	87%	42380	89%	**97	95%
Lovex S062	<<locked>>	93%	42830	89%	**69	97%
Norma 201	<<locked>>	89%	42424	89%	**49	97%
Norma 202	<<locked>>	89%	42380	89%	**69	99%
Norma 203B	<<locked>>	93%	43062	90%	**12	95%
Ramshot Big Game	<<locked>>	93%	43004	90%	**18	95%
[Ramshot TAC]*	<<locked>>	86%	42612	89%	**33	92%
Ramshot Wild Boar	<<locked>>	87%	42583	89%	**85	95%
Ramshot X-Terminator	<<locked>>	84%	42627	89%	**30	95%
ReloadSwiss RS 14	<<locked>>	97%	32489	68%	**04	100%
[ReloadSwiss RS 52]*	<<locked>>	91%	42989	90%	**71	94%
ReloadSwiss RS 60	<<locked>>	97%	42917	90%	**84	98%
Rottweil R 901	<<locked>>	86%	43018	90%	**49	99%
Rottweil R 902	<<locked>>	91%	42627	89%	**40	97%
Rottweil R 903	<<locked>>	97%	42090	88%	**95	96%
SNPE Vectan SP 11	<<locked>>	96%	42699	89%	**18	95%
[SNPE Vectan SP 7]*	<<locked>>	88%	42598	89%	**43	92%
SNPE Vectan SP 9	<<locked>>	89%	42757	89%	**76	95%
SNPE Vectan Tubal 3000	<<locked>>	87%	42641	89%	**90	99%
SNPE Vectan Tubal 5000	<<locked>>	94%	42917	90%	**07	99%
Shooters World Match Rifle 👍	<<locked>>	90%	43047	90%	**05	98%
Shooters World Precision	<<locked>>	93%	42830	89%	**69	97%
Somchem S321	<<locked>>	85%	42917	90%	**82	97%
Somchem S335	<<locked>>	88%	42264	88%	**97	99%
Somchem S341	<<locked>>	89%	43047	90%	**69	95%
Somchem S355	<<locked>>	97%	42873	90%	**92	96%
Vihtavuori N130	<<locked>>	84%	42815	89%	**87	100%
Vihtavuori N133	<<locked>>	90%	42772	89%	**07	100%
Vihtavuori N135	<<locked>>	97%	41075	86%	**40	100%
Vihtavuori N140	<<locked>>	91%	42525	89%	**46	99%
Vihtavuori N150	<<locked>>	97%	36274	76%	**35	95%
Vihtavuori N530	<<locked>>	85%	42424	89%	**66	97%
Vihtavuori N540 👍	<<locked>>	91%	42641	89%	**72	99%
[Winchester 6.5 StaBALL]*	<<locked>>	97%	38247	80%	**48	93%
Winchester 748	<<locked>>	85%	42438	89%	**12	97%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	81%	33692	70%	**69	92%
[ADI AR 2208]*	<<locked>>	86%	33402	70%	**39	90%
Accurate 2015	<<locked>>	81%	38508	80%	**48	100%
[Accurate 2200]*	<<locked>>	81%	36114	75%	**82	90%
Accurate 2460	<<locked>>	81%	39943	83%	**94	97%
Accurate 2495	<<locked>>	81%	32692	68%	**98	99%
Accurate 2520	<<locked>>	81%	33605	70%	**05	96%
[Accurate 4064]*	<<locked>>	81%	27499	57%	**44	94%
Alliant AR-Comp	<<locked>>	81%	33939	71%	**28	100%
[Alliant Power Pro 2000-MR]*	<<locked>>	87%	36869	77%	**07	90%
[Alliant Reloder- TS 15.5]*	<<locked>>	82%	28601	60%	**61	90%
[Alliant Reloder-15]*	<<locked>>	84%	32489	68%	**59	90%
[Alliant Reloder-17]*	<<locked>>	91%	33330	70%	**25	90%
[Baschieri & Pellagri 107]*	<<locked>>	83%	35157	73%	**08	90%
[Bofors RP3]*	<<locked>>	83%	28094	59%	**57	90%
[Hodgdon BL-C2]*	<<locked>>	81%	33823	71%	**15	93%
Hodgdon Benchmark	<<locked>>	81%	38348	80%	**12	96%
[Hodgdon CFE223]*	<<locked>>	87%	35795	75%	**57	90%
Hodgdon H322	<<locked>>	81%	37753	79%	**71	99%
[Hodgdon H380]*	<<locked>>	90%	37043	77%	**61	90%
[Hodgdon VARGET]*	<<locked>>	86%	33069	69%	**33	90%
Hodgdon TrailBoss	<<locked>>	84%	26687	56%	**44	100%
IMR 3031	<<locked>>	81%	29675	62%	**30	97%
[IMR 4064]*	<<locked>>	86%	32532	68%	**16	90%
[IMR 4895]*	<<locked>>	81%	30893	65%	**26	90%
[IMR 8208 XBR]*	<<locked>>	81%	35665	75%	**98	94%
Lovex D073.5	<<locked>>	81%	39508	83%	**84	97%
Lovex D073.6	<<locked>>	81%	31560	66%	**49	95%
[Lovex S060]*	<<locked>>	81%	35244	74%	**33	92%
[Lovex S062]*	<<locked>>	81%	29573	62%	**51	92%
[Norma 201]*	<<locked>>	81%	33112	69%	**33	93%
Norma 202	<<locked>>	81%	33025	69%	**62	96%
[Norma 203B]*	<<locked>>	83%	30676	64%	**20	90%
[Ramshot Big Game]*	<<locked>>	85%	32764	68%	**75	90%
[Ramshot TAC]*	<<locked>>	84%	39030	82%	**51	90%
[Ramshot Wild Boar]*	<<locked>>	81%	34650	72%	**98	92%
[Ramshot X-Terminator]*	<<locked>>	81%	39291	82%	**51	94%
ReloadSwiss RS 14	<<locked>>	81%	25469	53%	**47	100%
[ReloadSwiss RS 52]*	<<locked>>	84%	33446	70%	**41	90%
[ReloadSwiss RS 60]*	<<locked>>	84%	28689	60%	**87	90%
Rottweil R 901	<<locked>>	81%	36898	77%	**15	97%
[Rottweil R 902]*	<<locked>>	81%	31633	66%	**84	93%
[Rottweil R 903]*	<<locked>>	86%	29182	61%	**84	90%
[SNPE Vectan SP 11]*	<<locked>>	87%	32314	68%	**69	90%
[SNPE Vectan SP 7]*	<<locked>>	84%	37130	78%	**25	90%
[SNPE Vectan SP 9]*	<<locked>>	81%	32343	68%	**30	91%
SNPE Vectan Tubal 3000	<<locked>>	81%	35099	73%	**23	97%
SNPE Vectan Tubal 5000	<<locked>>	81%	28297	59%	**75	96%
Shooters World Match Rifle	<<locked>>	81%	31560	66%	**49	95%
[Shooters World Precision]*	<<locked>>	81%	29573	62%	**51	92%
Somchem S321	<<locked>>	81%	38174	80%	**80	96%
Somchem S335	<<locked>>	81%	34447	72%	**26	98%
[Somchem S341]*	<<locked>>	81%	33228	69%	**43	91%
[Somchem S355]*	<<locked>>	85%	29834	62%	**77	90%
Vihtavuori N130	<<locked>>	81%	39204	82%	**15	100%
Vihtavuori N133	<<locked>>	81%	32518	68%	**84	98%
Vihtavuori N135	<<locked>>	81%	25338	53%	**56	96%
Vihtavuori N140	<<locked>>	81%	30850	64%	**84	96%
[Vihtavuori N150]*	<<locked>>	86%	26005	54%	**52	90%
Vihtavuori N530	<<locked>>	81%	37492	78%	**54	95%
Vihtavuori N540	<<locked>>	81%	30458	64%	**97	95%
[Winchester 6.5 StaBALL]*	<<locked>>	91%	32039	67%	**87	90%
Winchester 748	<<locked>>	81%	36796	77%	**84	96%

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