Load data for .375 SOCOM + .375 | 270gr | Swift A-Frame

Recommended Powder(s): Alliant AR-Comp

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.375 \| 270gr \| Swift A-Frame
Bullet Weight:	270gr \| 17.5g
Bullet Diameter:	0.375" \| 9.52mm
Bullet Length:	1.200" \| 30.5mm
Caliber:	.375 SOCOM load data
Case Length (l3):	1.575" \| 40.0mm
Cartridge Length (C.O.L.):	2.226" \| 56.5mm
Seated Depth:	0.549" \| 13.9mm
Shank Seated Depth:	0.549" \| 13.9mm
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_B10866_C570
Last updated:	2025-02-02

Load data for 40 loads in caliber .375 SOCOM with .375 | 270gr | Swift A-Frame bullet and 20 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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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
Accurate 2015	<<locked>>	84%	31285	90%	**86	98%
[Accurate 2460]*	<<locked>>	84%	31256	89%	**96	92%
Accurate 2495	<<locked>>	92%	31415	90%	**78	98%
[Accurate 2520]*	<<locked>>	90%	30705	88%	**32	93%
[Accurate 4064]*	<<locked>>	96%	30197	86%	**49	94%
Alliant AR-Comp 👍	<<locked>>	89%	31343	90%	**49	99%
Hodgdon H322	<<locked>>	85%	31444	90%	**03	95%
IMR 3031	<<locked>>	93%	31038	89%	**42	96%
[Lovex D073.5]*	<<locked>>	84%	30922	88%	**90	92%
[Lovex D073.6]*	<<locked>>	92%	31241	89%	**39	93%
[Norma 202]*	<<locked>>	89%	30966	89%	**09	94%
[Rottweil R 901]*	<<locked>>	85%	31154	89%	**70	93%
[SNPE Vectan Tubal 3000]*	<<locked>>	86%	30850	88%	**27	93%
SNPE Vectan Tubal 5000	<<locked>>	94%	31357	90%	**50	95%
[Shooters World Match Rifle]*	<<locked>>	92%	31241	89%	**39	93%
Somchem S335	<<locked>>	87%	31140	89%	**57	95%
Vihtavuori N133	<<locked>>	89%	31082	89%	**54	97%
Vihtavuori N135	<<locked>>	97%	29008	83%	**73	96%
[Vihtavuori N140]*	<<locked>>	91%	30763	88%	**80	94%
[Vihtavuori N540]*	<<locked>>	92%	31372	90%	**16	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
Accurate 2015	<<locked>>	81%	28384	81%	**27	97%
[Accurate 2460]*	<<locked>>	81%	28819	82%	**44	90%
[Accurate 2495]*	<<locked>>	81%	22626	65%	**78	94%
[Accurate 2520]*	<<locked>>	85%	26469	76%	**34	90%
[Accurate 4064]*	<<locked>>	87%	22524	64%	**68	90%
Alliant AR-Comp	<<locked>>	81%	25237	72%	**04	97%
[Hodgdon H322]*	<<locked>>	81%	28239	81%	**31	93%
[IMR 3031]*	<<locked>>	81%	22510	64%	**22	90%
[Lovex D073.5]*	<<locked>>	81%	28253	81%	**34	90%
[Lovex D073.6]*	<<locked>>	87%	26963	77%	**44	90%
[Norma 202]*	<<locked>>	82%	25208	72%	**72	90%
[Rottweil R 901]*	<<locked>>	81%	27978	80%	**98	92%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	26992	77%	**45	92%
[SNPE Vectan Tubal 5000]*	<<locked>>	83%	23366	67%	**63	90%
[Shooters World Match Rifle]*	<<locked>>	87%	26963	77%	**44	90%
[Somchem S335]*	<<locked>>	81%	26266	75%	**49	93%
[Vihtavuori N133]*	<<locked>>	81%	25092	72%	**19	94%
[Vihtavuori N135]*	<<locked>>	83%	20798	60%	**54	90%
[Vihtavuori N140]*	<<locked>>	83%	24831	71%	**42	90%
[Vihtavuori N540]*	<<locked>>	85%	25570	73%	**81	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