Load data for .303 Savage + .308 | 175gr | Sierra HPBT MatchKing

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.308 \| 175gr \| Sierra HPBT MatchKing
Manufacturer SKU:	2275
Bullet Weight:	175gr \| 11.3g
Bullet Diameter:	0.308" \| 7.82mm
Bullet Length:	1.240" \| 31.5mm
Caliber:	.303 Savage load data
Case Length (l3):	2.014" \| 51.2mm
Cartridge Length (C.O.L.):	2.482" \| 63.0mm
Seated Depth:	0.772" \| 19.6mm
Shank Seated Depth:	0.587" \| 14.9mm
Case Capacity:	45.0 Grains of Water \| 2.92 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	39160 psi \| 2700 bar
LID:	LID_B5889_C391
Last updated:	2025-01-01
Recommended Twist Rate:	1:12 - 1:10

Load data for 70 loads in caliber .303 Savage with .308 | 175gr | Sierra HPBT MatchKing bullet and 35 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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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 2219	<<locked>>	84%	34229	87%	**44	96%
Accurate 2015	<<locked>>	90%	34185	87%	**31	98%
[Accurate 2460]*	<<locked>>	90%	35143	90%	**57	93%
Accurate 2495	<<locked>>	96%	32285	82%	**93	98%
[Accurate 2520]*	<<locked>>	95%	34345	88%	**90	94%
[Accurate 4064]*	<<locked>>	96%	26745	68%	**65	93%
Alliant AR-Comp 👍	<<locked>>	94%	34780	89%	**03	100%
Alliant Reloder-10x	<<locked>>	87%	34330	88%	**37	99%
Baschieri & Pellagri 106	<<locked>>	84%	34838	89%	**78	97%
[Hodgdon Benchmark]*	<<locked>>	88%	34316	88%	**82	92%
Hodgdon H322	<<locked>>	90%	34229	87%	**44	96%
Hodgdon H335	<<locked>>	86%	34838	89%	**60	95%
IMR 3031	<<locked>>	96%	31778	81%	**47	96%
IMR 4198	<<locked>>	85%	35027	89%	**98	99%
[Lovex D073.4]*	<<locked>>	87%	34040	87%	**21	92%
[Lovex D073.5]*	<<locked>>	90%	35143	90%	**57	93%
[Lovex D073.6]*	<<locked>>	96%	33127	85%	**70	93%
Norma 200	<<locked>>	83%	34722	89%	**34	99%
Norma 202	<<locked>>	96%	35230	90%	**80	95%
[ReloadSwiss RS 40]*	<<locked>>	87%	34316	88%	**28	93%
Rottweil R 901	<<locked>>	92%	35230	90%	**41	95%
SNPE Vectan SP 10	<<locked>>	85%	34998	89%	**60	95%
SNPE Vectan Tubal 3000	<<locked>>	92%	34447	88%	**78	95%
SNPE Vectan Tubal 5000	<<locked>>	97%	31836	81%	**42	95%
[Shooters World Match Rifle]*	<<locked>>	96%	33127	85%	**70	93%
[Somchem S321]*	<<locked>>	91%	35186	90%	**70	92%
Somchem S335	<<locked>>	94%	35215	90%	**21	96%
Vihtavuori N120	<<locked>>	83%	34853	89%	**85	100%
Vihtavuori N130	<<locked>>	89%	35215	90%	**05	99%
Vihtavuori N133	<<locked>>	95%	34447	88%	**05	98%
[Vihtavuori N135]*	<<locked>>	96%	26397	67%	**00	94%
Vihtavuori N140	<<locked>>	96%	33678	86%	**21	95%
[Vihtavuori N530]*	<<locked>>	90%	34432	88%	**37	91%
[Vihtavuori N540]*	<<locked>>	97%	33388	85%	**44	94%
[Winchester 748]*	<<locked>>	91%	34693	89%	**70	92%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2219	<<locked>>	81%	31053	79%	**78	95%
Accurate 2015	<<locked>>	81%	25962	66%	**57	95%
[Accurate 2460]*	<<locked>>	84%	28776	73%	**32	90%
[Accurate 2495]*	<<locked>>	81%	19479	50%	**78	91%
[Accurate 2520]*	<<locked>>	88%	27267	70%	**39	90%
[Accurate 4064]*	<<locked>>	92%	23424	60%	**80	90%
Alliant AR-Comp	<<locked>>	81%	23337	60%	**34	96%
Alliant Reloder-10x	<<locked>>	81%	29008	74%	**32	97%
Baschieri & Pellagri 106	<<locked>>	81%	31459	80%	**16	96%
[Hodgdon Benchmark]*	<<locked>>	85%	31053	79%	**16	91%
[Hodgdon H322]*	<<locked>>	81%	26136	67%	**64	92%
[Hodgdon H335]*	<<locked>>	81%	29573	76%	**52	92%
[IMR 3031]*	<<locked>>	85%	22800	58%	**14	90%
IMR 4198	<<locked>>	81%	31546	81%	**32	99%
[Lovex D073.4]*	<<locked>>	83%	29805	76%	**36	91%
[Lovex D073.5]*	<<locked>>	84%	28776	73%	**32	90%
[Lovex D073.6]*	<<locked>>	90%	27267	70%	**39	90%
Norma 200	<<locked>>	81%	32372	83%	**91	99%
[Norma 202]*	<<locked>>	85%	25309	65%	**60	90%
[ReloadSwiss RS 40]*	<<locked>>	81%	28007	72%	**93	90%
[Rottweil R 901]*	<<locked>>	81%	25179	64%	**24	90%
[SNPE Vectan SP 10]*	<<locked>>	81%	30632	78%	**72	93%
[SNPE Vectan Tubal 3000]*	<<locked>>	82%	25324	65%	**88	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	86%	23728	61%	**52	90%
[Shooters World Match Rifle]*	<<locked>>	90%	27267	70%	**39	90%
[Somchem S321]*	<<locked>>	87%	30966	79%	**85	90%
[Somchem S335]*	<<locked>>	81%	23786	61%	**72	91%
Vihtavuori N120	<<locked>>	81%	32445	83%	**42	100%
Vihtavuori N130	<<locked>>	81%	27731	71%	**60	97%
[Vihtavuori N133]*	<<locked>>	81%	23221	59%	**49	93%
[Vihtavuori N135]*	<<locked>>	88%	21103	54%	**49	90%
[Vihtavuori N140]*	<<locked>>	87%	25208	64%	**31	90%
[Vihtavuori N530]*	<<locked>>	87%	31343	80%	**75	90%
[Vihtavuori N540]*	<<locked>>	88%	26049	67%	**77	90%
[Winchester 748]*	<<locked>>	87%	30734	78%	**85	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