Load data for .307 Win. + .308 | 125gr | Sierra SPT Pro-Hunter

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.308 \| 125gr \| Sierra SPT Pro-Hunter
Manufacturer SKU:	2120
Bullet Weight:	125gr \| 8.1g
Bullet Diameter:	0.308" \| 7.82mm
Bullet Length:	<<locked>>
Caliber:	.307 Win. load data
Case Length (l3):	2.014" \| 51.2mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	54.0 Grains of Water \| 3.51 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	60191 psi \| 4150 bar
LID:	LID_B5864_C393
Last updated:	2026-01-20

Load data for 112 loads in caliber .307 Win. with .308 | 125gr | Sierra SPT Pro-Hunter bullet and 56 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 2207	<<locked>>	92%	53737	89%	**30	100%
ADI AR 2219 👍	<<locked>>	95%	54012	90%	**05	99%
Accurate 1680	<<locked>>	84%	53664	89%	**10	100%
Accurate 2015 👍	<<locked>>	97%	47601	79%	**64	100%
Accurate 2230	<<locked>>	97%	52591	87%	**27	95%
Accurate 2460	<<locked>>	96%	50502	84%	**17	96%
Accurate 2495	<<locked>>	97%	38348	64%	**85	98%
Accurate 2520	<<locked>>	97%	41495	69%	**15	95%
[Accurate 4064]*	<<locked>>	97%	31633	53%	**18	93%
Alliant AR-Comp	<<locked>>	96%	41466	69%	**41	100%
Alliant Reloder-10x 👍	<<locked>>	96%	51416	85%	**40	100%
Alliant Reloder-7	<<locked>>	91%	53621	89%	**07	100%
Baschieri & Pellagri 106 👍	<<locked>>	94%	54114	90%	**84	99%
[Hodgdon BL-C2]*	<<locked>>	97%	42656	71%	**35	93%
Hodgdon Benchmark	<<locked>>	97%	48718	81%	**44	96%
Hodgdon CFE BLK	<<locked>>	90%	53272	89%	**74	96%
Hodgdon H322	<<locked>>	97%	47050	78%	**94	98%
Hodgdon H335	<<locked>>	95%	53055	88%	**92	98%
Hodgdon H4198 👍	<<locked>>	93%	53954	90%	**87	99%
Hodgdon TrailBoss	<<locked>>	96%	30066	50%	**29	100%
IMR 3031	<<locked>>	96%	35621	59%	**17	96%
IMR 4198	<<locked>>	96%	52939	88%	**13	100%
IMR 4227	<<locked>>	86%	52881	88%	**41	100%
[IMR 8208 XBR]*	<<locked>>	97%	44831	74%	**18	94%
Lovex D073.4	<<locked>>	96%	53679	89%	**53	97%
Lovex D073.5	<<locked>>	96%	49806	83%	**07	96%
[Lovex D073.6]*	<<locked>>	97%	38696	64%	**59	94%
Lovex S053	<<locked>>	87%	54143	90%	**31	100%
[Lovex S060]*	<<locked>>	96%	43990	73%	**40	92%
Norma 200	<<locked>>	94%	53795	89%	**59	100%
[Norma 201]*	<<locked>>	97%	40799	68%	**43	93%
Norma 202	<<locked>>	96%	39972	66%	**62	96%
[Ramshot Wild Boar]*	<<locked>>	96%	43482	72%	**15	91%
[Ramshot X-Terminator]*	<<locked>>	96%	50009	83%	**71	93%
ReloadSwiss RS 14	<<locked>>	96%	29994	50%	**68	100%
ReloadSwiss RS 36	<<locked>>	86%	53635	89%	**90	100%
ReloadSwiss RS 40	<<locked>>	96%	50995	85%	**30	97%
Rottweil R 901	<<locked>>	97%	44817	74%	**15	97%
[Rottweil R 902]*	<<locked>>	96%	38319	64%	**77	92%
SNPE Vectan BA6 1/2	<<locked>>	91%	53896	90%	**64	100%
SNPE Vectan SP 10	<<locked>>	94%	53809	89%	**02	98%
SNPE Vectan Tubal 3000	<<locked>>	97%	44599	74%	**43	97%
SNPE Vectan Tubal 5000	<<locked>>	97%	35621	59%	**79	95%
[Shooters World Match Rifle]*	<<locked>>	97%	38696	64%	**59	94%
Shooters World Tactical Rifle	<<locked>>	95%	53490	89%	**17	95%
Somchem S321	<<locked>>	96%	48080	80%	**07	95%
Somchem S335	<<locked>>	97%	42351	70%	**36	97%
Vihtavuori N120	<<locked>>	94%	54056	90%	**74	100%
Vihtavuori N130	<<locked>>	96%	48486	81%	**28	100%
Vihtavuori N133	<<locked>>	97%	39871	66%	**87	98%
Vihtavuori N135	<<locked>>	97%	29907	50%	**26	95%
Vihtavuori N140	<<locked>>	96%	37376	62%	**74	95%
Vihtavuori N530	<<locked>>	97%	47906	80%	**87	95%
Vihtavuori N540	<<locked>>	97%	37478	62%	**03	95%
Winchester 748	<<locked>>	96%	46978	78%	**20	96%
Winchester StaBALL Match	<<locked>>	97%	51663	86%	**72	95%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2207	<<locked>>	81%	38508	64%	**71	100%
ADI AR 2219	<<locked>>	81%	33924	56%	**12	95%
Accurate 1680	<<locked>>	81%	48921	81%	**35	99%
Accurate 2015	<<locked>>	81%	28906	48%	**64	95%
[Accurate 2230]*	<<locked>>	87%	36738	61%	**28	90%
[Accurate 2460]*	<<locked>>	83%	31807	53%	**39	90%
[Accurate 2495]*	<<locked>>	81%	22640	38%	**65	92%
[Accurate 2520]*	<<locked>>	86%	29138	48%	**26	90%
[Accurate 4064]*	<<locked>>	90%	25643	43%	**48	90%
Alliant AR-Comp	<<locked>>	81%	25498	42%	**28	96%
Alliant Reloder-10x	<<locked>>	81%	32111	53%	**59	97%
Alliant Reloder-7	<<locked>>	81%	39798	66%	**71	99%
Baschieri & Pellagri 106	<<locked>>	81%	34983	58%	**39	96%
[Hodgdon BL-C2]*	<<locked>>	91%	35592	59%	**77	90%
[Hodgdon Benchmark]*	<<locked>>	84%	32779	54%	**03	90%
[Hodgdon CFE BLK]*	<<locked>>	81%	39262	65%	**08	92%
[Hodgdon H322]*	<<locked>>	81%	28892	48%	**74	92%
[Hodgdon H335]*	<<locked>>	81%	33112	55%	**89	93%
Hodgdon H4198	<<locked>>	81%	38290	64%	**02	96%
Hodgdon TrailBoss	<<locked>>	87%	26411	44%	**47	100%
[IMR 3031]*	<<locked>>	84%	24787	41%	**95	90%
IMR 4198	<<locked>>	81%	34127	57%	**59	99%
IMR 4227	<<locked>>	81%	46050	77%	**33	100%
[IMR 8208 XBR]*	<<locked>>	89%	34969	58%	**02	90%
[Lovex D073.4]*	<<locked>>	82%	31763	53%	**23	90%
[Lovex D073.5]*	<<locked>>	83%	31299	52%	**23	90%
[Lovex D073.6]*	<<locked>>	89%	29138	48%	**26	90%
Lovex S053	<<locked>>	81%	44962	75%	**94	100%
[Lovex S060]*	<<locked>>	93%	39334	65%	**44	90%
Norma 200	<<locked>>	81%	36347	60%	**48	99%
[Norma 201]*	<<locked>>	91%	34708	58%	**02	90%
[Norma 202]*	<<locked>>	85%	27688	46%	**51	90%
[Ramshot Wild Boar]*	<<locked>>	94%	39900	66%	**40	90%
[Ramshot X-Terminator]*	<<locked>>	90%	40248	67%	**87	90%
ReloadSwiss RS 14	<<locked>>	83%	24787	41%	**50	100%
ReloadSwiss RS 36	<<locked>>	81%	45542	76%	**66	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	30951	51%	**07	90%
[Rottweil R 901]*	<<locked>>	81%	27833	46%	**15	90%
[Rottweil R 902]*	<<locked>>	93%	34795	58%	**02	90%
SNPE Vectan BA6 1/2	<<locked>>	81%	41814	69%	**90	100%
[SNPE Vectan SP 10]*	<<locked>>	81%	34069	57%	**12	93%
[SNPE Vectan Tubal 3000]*	<<locked>>	82%	27644	46%	**59	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	86%	25991	43%	**20	90%
[Shooters World Match Rifle]*	<<locked>>	89%	29138	48%	**26	90%
[Shooters World Tactical Rifle]*	<<locked>>	84%	35868	60%	**85	90%
[Somchem S321]*	<<locked>>	86%	33489	56%	**95	90%
[Somchem S335]*	<<locked>>	81%	26440	44%	**49	91%
Vihtavuori N120	<<locked>>	81%	36129	60%	**82	100%
Vihtavuori N130	<<locked>>	81%	30603	51%	**64	97%
[Vihtavuori N133]*	<<locked>>	81%	25280	42%	**10	92%
[Vihtavuori N135]*	<<locked>>	88%	23264	39%	**16	90%
[Vihtavuori N140]*	<<locked>>	85%	26803	45%	**98	90%
[Vihtavuori N530]*	<<locked>>	87%	34389	57%	**08	90%
[Vihtavuori N540]*	<<locked>>	88%	28674	48%	**74	90%
[Winchester 748]*	<<locked>>	86%	33489	56%	**15	90%
[Winchester StaBALL Match]*	<<locked>>	88%	38450	64%	**13	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