Load data for .375 SOCOM + .375 | 260gr | Nosler Partition SP

Recommended Powder(s): Alliant AR-Comp

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.375 \| 260gr \| Nosler Partition SP
Manufacturer SKU:	44850
Bullet Weight:	260gr \| 16.8g
Bullet Diameter:	0.375" \| 9.52mm
Bullet Length:	1.145" \| 29.1mm
Caliber:	.375 SOCOM load data
Case Length (l3):	1.575" \| 40.0mm
Cartridge Length (C.O.L.):	2.226" \| 56.5mm
Seated Depth:	0.494" \| 12.5mm
Shank Seated Depth:	0.494" \| 12.5mm
Case Capacity:	60.0 Grains of Water \| 3.90 cm³
Primer Size:	Large Pistol Magnum (LPM)
Max. allowed Pressure:	34954 psi \| 2410 bar
LID:	LID_B4180_C570
Last updated:	2025-02-02

Load data for 44 loads in caliber .375 SOCOM with .375 | 260gr | Nosler Partition SP bullet and 22 powders such as Alliant AR-Comp. 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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Muzzle velocity vs. barrel length
Every 1 inch additional barrel length increases muzzle velocity by approx. 18.5 fps
C.O.L. (Inch)
C.O.L. (mm)
Case Length (Inch)
Case Length (mm)
CaseCapacity (GoW)
Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
Barrel Length (cm)
Safety Buffer (%)
.
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.

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
Accurate 2015	<<locked>>	87%	31386	90%	**62	97%
Accurate 2495	<<locked>>	94%	30690	88%	**44	97%
[Accurate 2520]*	<<locked>>	92%	31125	89%	**05	93%
[Accurate 4064]*	<<locked>>	97%	27383	78%	**62	93%
Alliant AR-Comp 👍	<<locked>>	91%	31009	89%	**11	99%
Alliant Reloder-10x	<<locked>>	83%	30937	89%	**59	98%
Hodgdon H322	<<locked>>	87%	31401	90%	**72	95%
IMR 3031	<<locked>>	96%	31314	90%	**18	96%
[Lovex D073.5]*	<<locked>>	86%	31053	89%	**62	91%
[Lovex D073.6]*	<<locked>>	95%	31386	90%	**11	93%
[Norma 202]*	<<locked>>	92%	31357	90%	**85	94%
[ReloadSwiss RS 40]*	<<locked>>	85%	31328	90%	**52	92%
[Rottweil R 901]*	<<locked>>	88%	31183	89%	**46	93%
[SNPE Vectan Tubal 3000]*	<<locked>>	89%	31401	90%	**03	94%
SNPE Vectan Tubal 5000	<<locked>>	96%	31053	89%	**09	95%
[Shooters World Match Rifle]*	<<locked>>	95%	31386	90%	**11	93%
Somchem S335	<<locked>>	90%	31227	89%	**29	95%
Vihtavuori N130	<<locked>>	85%	30966	89%	**13	98%
Vihtavuori N133	<<locked>>	91%	31096	89%	**19	97%
[Vihtavuori N135]*	<<locked>>	96%	26411	76%	**83	94%
[Vihtavuori N140]*	<<locked>>	93%	30980	89%	**52	94%
[Vihtavuori N540]*	<<locked>>	94%	30850	88%	**72	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
Accurate 2015	<<locked>>	81%	26020	74%	**47	95%
[Accurate 2495]*	<<locked>>	81%	19769	57%	**72	92%
[Accurate 2520]*	<<locked>>	87%	26411	76%	**03	90%
[Accurate 4064]*	<<locked>>	91%	22684	65%	**44	90%
Alliant AR-Comp	<<locked>>	81%	23032	66%	**14	96%
Alliant Reloder-10x	<<locked>>	81%	28863	83%	**16	97%
[Hodgdon H322]*	<<locked>>	81%	26208	75%	**54	92%
[IMR 3031]*	<<locked>>	84%	22524	64%	**95	90%
[Lovex D073.5]*	<<locked>>	84%	28340	81%	**03	90%
[Lovex D073.6]*	<<locked>>	90%	26832	77%	**09	90%
[Norma 202]*	<<locked>>	85%	24903	71%	**37	90%
[ReloadSwiss RS 40]*	<<locked>>	81%	27963	80%	**77	90%
[Rottweil R 901]*	<<locked>>	81%	25396	73%	**14	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	24685	71%	**59	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	86%	23293	67%	**29	90%
[Shooters World Match Rifle]*	<<locked>>	90%	26832	77%	**09	90%
[Somchem S335]*	<<locked>>	81%	23859	68%	**62	91%
Vihtavuori N130	<<locked>>	81%	27601	79%	**41	97%
[Vihtavuori N133]*	<<locked>>	81%	23192	66%	**36	93%
[Vihtavuori N135]*	<<locked>>	87%	20842	60%	**26	90%
[Vihtavuori N140]*	<<locked>>	86%	24729	71%	**04	90%
[Vihtavuori N540]*	<<locked>>	88%	25904	74%	**57	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.