Load data for .375 Fl. Mag. N.E. + .375 | 300gr | SUS-TAC Solid Flat Nose

Recommended Powder(s): Alliant Reloder-17, ReloadSwiss RS 60, SNPE Vectan SP 11, Somchem S365, Vihtavuori N550

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.375 \| 300gr \| SUS-TAC Solid Flat Nose
Manufacturer SKU:	H12960
Bullet Weight:	300gr \| 19.4g
Bullet Diameter:	0.375" \| 9.52mm
Bullet Length:	1.278" \| 32.5mm
Caliber:	.375 Fl. Mag. N.E. load data
Case Length (l3):	2.940" \| 74.7mm
Cartridge Length (C.O.L.):	3.743" \| 95.1mm
Seated Depth:	0.475" \| 12.1mm
Shank Seated Depth:	0.475" \| 12.1mm
Case Capacity:	94.1 Grains of Water \| 6.11 cm³
Primer Size:	Large Rifle Magnum (LRM)
Max. allowed Pressure:	47137 psi \| 3250 bar
LID:	LID_B10330_C541
Last updated:	2025-01-01

Load data for 108 loads in caliber .375 Fl. Mag. N.E. with .375 | 300gr | SUS-TAC Solid Flat Nose bullet and 54 powders such as Alliant Reloder-17, ReloadSwiss RS 60, SNPE Vectan SP 11, Somchem S365, Vihtavuori N550. 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 2208	<<locked>>	84%	41974	89%	**70	98%
[ADI AR 2209]*	<<locked>>	97%	42308	90%	**39	93%
[Accurate 2700]*	<<locked>>	85%	42061	89%	**24	94%
[Accurate 3100]*	<<locked>>	97%	34432	73%	**01	94%
Accurate 4064	<<locked>>	84%	42308	90%	**90	100%
Accurate 4350	<<locked>>	93%	42047	89%	**56	98%
Alliant Reloder- TS 15.5	<<locked>>	84%	42003	89%	**03	99%
Alliant Reloder-16	<<locked>>	93%	42380	90%	**79	98%
Alliant Reloder-17 👍	<<locked>>	89%	42119	89%	**98	99%
[Alliant Reloder-19]*	<<locked>>	97%	41191	87%	**29	93%
Alliant Reloder-23	<<locked>>	97%	33765	72%	**34	97%
Alliant Reloder-26	<<locked>>	97%	37115	79%	**59	96%
Hodgdon CFE223	<<locked>>	83%	42018	89%	**46	98%
Hodgdon H380	<<locked>>	84%	42003	89%	**00	98%
Hodgdon H414	<<locked>>	88%	42003	89%	**52	95%
[Hodgdon H4350]*	<<locked>>	94%	42018	89%	**93	94%
Hodgdon Hybrid 100V	<<locked>>	95%	42090	89%	**33	99%
Hodgdon LVR	<<locked>>	90%	41858	89%	**36	97%
[Hodgdon Superperformance]*	<<locked>>	90%	41756	89%	**59	94%
Hodgdon VARGET	<<locked>>	84%	41974	89%	**70	98%
IMR 4064	<<locked>>	85%	41756	89%	**64	99%
IMR 4166 Enduron	<<locked>>	85%	42148	89%	**41	95%
[IMR 4350]*	<<locked>>	92%	42424	90%	**97	94%
IMR 4451 Enduron	<<locked>>	87%	42061	89%	**67	95%
IMR 4831	<<locked>>	97%	41307	88%	**29	98%
Lovex S065	<<locked>>	89%	42177	89%	**83	97%
Lovex S070	<<locked>>	91%	42380	90%	**03	95%
[Norma 204]*	<<locked>>	92%	42177	89%	**23	93%
[Norma MRP]*	<<locked>>	97%	37579	80%	**23	93%
Norma URP	<<locked>>	93%	42293	90%	**56	98%
Ramshot Hunter	<<locked>>	93%	42380	90%	**65	96%
ReloadSwiss RS 50	<<locked>>	83%	41756	89%	**74	96%
ReloadSwiss RS 52	<<locked>>	83%	42047	89%	**43	100%
ReloadSwiss RS 60 👍	<<locked>>	90%	42018	89%	**11	100%
ReloadSwiss RS 62	<<locked>>	93%	42221	90%	**82	98%
ReloadSwiss RS 70	<<locked>>	93%	42206	90%	**88	97%
Rottweil R 903	<<locked>>	87%	42366	90%	**16	99%
[Rottweil R 905]*	<<locked>>	97%	39856	85%	**10	92%
[Rottweil R 907]*	<<locked>>	88%	41887	89%	**67	94%
SNPE Vectan SP 11 👍	<<locked>>	86%	42250	90%	**39	99%
SNPE Vectan Tubal 5000	<<locked>>	85%	42076	89%	**05	100%
SNPE Vectan Tubal 7000	<<locked>>	90%	42293	90%	**44	95%
Shooters World Long Rifle	<<locked>>	89%	42177	89%	**83	97%
Somchem S355	<<locked>>	86%	42250	90%	**00	99%
Somchem S365 👍	<<locked>>	96%	42003	89%	**92	100%
[Somchem S385]*	<<locked>>	97%	40118	85%	**00	94%
Vihtavuori N135	<<locked>>	87%	42134	89%	**47	100%
Vihtavuori N150	<<locked>>	91%	41916	89%	**70	100%
Vihtavuori N160	<<locked>>	90%	42424	90%	**23	98%
Vihtavuori N550 👍	<<locked>>	90%	42322	90%	**56	98%
Vihtavuori N555	<<locked>>	97%	36274	77%	**97	97%
Winchester 6.5 StaBALL	<<locked>>	91%	42105	89%	**00	99%
Winchester 760	<<locked>>	88%	42003	89%	**52	95%
Winchester StaBALL HD	<<locked>>	97%	29892	63%	**05	96%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2208	<<locked>>	81%	38363	81%	**05	98%
[ADI AR 2209]*	<<locked>>	92%	36680	78%	**24	90%
[Accurate 2700]*	<<locked>>	81%	36463	77%	**23	92%
[Accurate 3100]*	<<locked>>	90%	27528	58%	**47	90%
Accurate 4064	<<locked>>	81%	39131	83%	**41	100%
[Accurate 4350]*	<<locked>>	81%	28239	60%	**70	93%
Alliant Reloder- TS 15.5	<<locked>>	81%	37724	80%	**21	99%
[Alliant Reloder-16]*	<<locked>>	81%	29385	62%	**87	93%
Alliant Reloder-17	<<locked>>	81%	32445	69%	**95	97%
[Alliant Reloder-19]*	<<locked>>	92%	35969	76%	**21	90%
[Alliant Reloder-23]*	<<locked>>	83%	22640	48%	**19	90%
[Alliant Reloder-26]*	<<locked>>	88%	27325	58%	**00	90%
Hodgdon CFE223	<<locked>>	81%	38856	82%	**83	97%
Hodgdon H380	<<locked>>	81%	38348	81%	**31	97%
[Hodgdon H414]*	<<locked>>	81%	33576	71%	**78	92%
[Hodgdon H4350]*	<<locked>>	85%	32140	68%	**90	90%
[Hodgdon Hybrid 100V]*	<<locked>>	81%	26803	57%	**05	94%
[Hodgdon LVR]*	<<locked>>	81%	31720	67%	**26	94%
[Hodgdon Superperformance]*	<<locked>>	84%	33272	71%	**82	90%
Hodgdon VARGET	<<locked>>	81%	37840	80%	**98	98%
IMR 4064	<<locked>>	81%	37565	80%	**85	98%
[IMR 4166 Enduron]*	<<locked>>	81%	37637	80%	**56	94%
[IMR 4350]*	<<locked>>	83%	31894	68%	**83	90%
[IMR 4451 Enduron]*	<<locked>>	81%	35534	75%	**39	93%
[IMR 4831]*	<<locked>>	81%	25411	54%	**82	92%
[Lovex S065]*	<<locked>>	81%	32851	70%	**96	93%
[Lovex S070]*	<<locked>>	81%	30893	66%	**70	91%
[Norma 204]*	<<locked>>	88%	36506	77%	**15	90%
[Norma MRP]*	<<locked>>	92%	32590	69%	**05	90%
[Norma URP]*	<<locked>>	81%	29153	62%	**83	93%
[Ramshot Hunter]*	<<locked>>	81%	28660	61%	**60	90%
ReloadSwiss RS 50	<<locked>>	81%	38798	82%	**18	95%
ReloadSwiss RS 52	<<locked>>	81%	38537	82%	**83	100%
ReloadSwiss RS 60	<<locked>>	81%	31705	67%	**88	98%
[ReloadSwiss RS 62]*	<<locked>>	81%	28253	60%	**87	92%
[ReloadSwiss RS 70]*	<<locked>>	81%	28747	61%	**83	91%
Rottweil R 903	<<locked>>	81%	35085	74%	**78	98%
[Rottweil R 905]*	<<locked>>	93%	34969	74%	**11	90%
[Rottweil R 907]*	<<locked>>	81%	33982	72%	**06	91%
SNPE Vectan SP 11	<<locked>>	81%	36071	77%	**24	98%
SNPE Vectan Tubal 5000	<<locked>>	81%	37811	80%	**36	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	81%	31618	67%	**44	91%
[Shooters World Long Rifle]*	<<locked>>	81%	32851	70%	**96	93%
Somchem S355	<<locked>>	81%	36013	76%	**88	98%
Somchem S365	<<locked>>	81%	26020	55%	**37	96%
[Somchem S385]*	<<locked>>	90%	31966	68%	**29	90%
Vihtavuori N135	<<locked>>	81%	35172	75%	**29	100%
Vihtavuori N150	<<locked>>	81%	30676	65%	**57	98%
[Vihtavuori N160]*	<<locked>>	81%	31502	67%	**06	94%
Vihtavuori N550	<<locked>>	81%	32010	68%	**49	95%
[Vihtavuori N555]*	<<locked>>	82%	23192	49%	**62	90%
Winchester 6.5 StaBALL	<<locked>>	81%	30356	64%	**64	96%
[Winchester 760]*	<<locked>>	81%	33576	71%	**78	92%
[Winchester StaBALL HD]*	<<locked>>	89%	23989	51%	**01	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