Load data for .375 H.& H. Mag. + .374 | 270gr | Rhino Penetrator

Recommended Powder(s): Alliant Reloder-15, IMR 4895, Norma 203B, Ramshot Big Game, ReloadSwiss RS 52

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.374 \| 270gr \| Rhino Penetrator
Bullet Weight:	270gr \| 17.5g
Bullet Diameter:	0.374" \| 9.50mm
Bullet Length:	1.376" \| 35.0mm
Caliber:	.375 H.& H. Mag. load data
Case Length (l3):	2.859" \| 72.6mm
Cartridge Length (C.O.L.):	3.546" \| 90.1mm
Seated Depth:	0.689" \| 17.5mm
Shank Seated Depth:	0.689" \| 17.5mm
Case Capacity:	95.3 Grains of Water \| 6.19 cm³
Primer Size:	Large Rifle Magnum (LRM)
Max. allowed Pressure:	62366 psi \| 4300 bar
LID:	LID_B5315_C543
Last updated:	2025-01-01

Load data for 194 loads in caliber .375 H.& H. Mag. with .374 | 270gr | Rhino Penetrator bullet and 97 powders such as Alliant Reloder-15, IMR 4895, Norma 203B, Ramshot Big Game, ReloadSwiss RS 52. 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".

Go to the bottom of the "Dashboard " page to set the measure system (imperial vs. metric)
No data yet
C.O.L. (Inch)
C.O.L. (mm)
We recommend you limit powder range to relevant brands to speed up re-calculation of results
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 2206H	<<locked>>	92%	55898	90%	**05	100%
ADI AR 2208	<<locked>>	97%	54114	87%	**59	99%
ADI AR 2219	<<locked>>	84%	55941	90%	**62	100%
Accurate 2015	<<locked>>	88%	55956	90%	**07	100%
Accurate 2200	<<locked>>	90%	56130	90%	**66	99%
Accurate 2230	<<locked>>	86%	55796	89%	**56	100%
Accurate 2460	<<locked>>	86%	55724	89%	**56	100%
Accurate 2495	<<locked>>	92%	55854	90%	**75	100%
Accurate 2520	<<locked>>	91%	55448	89%	**92	100%
Accurate 2700	<<locked>>	97%	52866	85%	**80	95%
Accurate 4064	<<locked>>	97%	54259	87%	**75	100%
Accurate 4350	<<locked>>	97%	40118	64%	**31	96%
Alliant AR-Comp	<<locked>>	91%	56057	90%	**59	100%
Alliant Reloder- TS 15.5	<<locked>>	97%	53055	85%	**79	100%
Alliant Reloder-10x	<<locked>>	86%	55825	90%	**10	100%
Alliant Reloder-15 👍	<<locked>>	96%	55941	90%	**25	99%
Alliant Reloder-16	<<locked>>	97%	41075	66%	**34	96%
Alliant Reloder-17	<<locked>>	97%	46949	75%	**75	99%
[Alliant Reloder-23]*	<<locked>>	97%	28950	46%	**85	92%
Baschieri & Pellagri 106	<<locked>>	84%	55695	89%	**67	100%
Baschieri & Pellagri 107	<<locked>>	92%	55695	89%	**15	99%
Hodgdon BL-C2	<<locked>>	91%	55230	89%	**15	100%
Hodgdon Benchmark	<<locked>>	89%	55883	90%	**26	100%
Hodgdon CFE223	<<locked>>	96%	55825	90%	**57	99%
Hodgdon H322	<<locked>>	89%	55767	89%	**56	100%
Hodgdon H335	<<locked>>	84%	55622	89%	**72	100%
Hodgdon H380	<<locked>>	97%	55230	89%	**02	98%
Hodgdon H414	<<locked>>	97%	48370	78%	**52	95%
Hodgdon Hybrid 100V	<<locked>>	97%	37724	60%	**43	97%
Hodgdon LVR	<<locked>>	97%	44918	72%	**87	96%
[Hodgdon Superperformance]*	<<locked>>	97%	44889	72%	**93	92%
Hodgdon VARGET	<<locked>>	97%	53766	86%	**59	99%
IMR 3031	<<locked>>	96%	55608	89%	**02	100%
IMR 4064	<<locked>>	97%	52359	84%	**30	99%
IMR 4166 Enduron	<<locked>>	97%	52315	84%	**93	96%
IMR 4198	<<locked>>	86%	55956	90%	**70	100%
[IMR 4350]*	<<locked>>	97%	42293	68%	**82	92%
IMR 4451 Enduron	<<locked>>	97%	50328	81%	**90	95%
[IMR 4831]*	<<locked>>	97%	34519	55%	**97	94%
IMR 4895 👍	<<locked>>	95%	55898	90%	**38	100%
IMR 8208 XBR	<<locked>>	91%	55796	89%	**69	100%
Lovex D073.4	<<locked>>	85%	55666	89%	**46	100%
Lovex D073.5	<<locked>>	86%	55347	89%	**52	100%
Lovex D073.6	<<locked>>	93%	55608	89%	**92	100%
Lovex S060	<<locked>>	92%	55477	89%	**30	100%
Lovex S062	<<locked>>	96%	55477	89%	**82	100%
Lovex S065	<<locked>>	97%	45832	73%	**34	96%
[Lovex S070]*	<<locked>>	97%	43207	69%	**08	94%
Norma 201	<<locked>>	93%	55825	90%	**69	100%
Norma 202	<<locked>>	93%	55448	89%	**69	100%
Norma 203B 👍	<<locked>>	96%	55970	90%	**21	100%
Norma URP	<<locked>>	97%	40567	65%	**25	96%
Ramshot Big Game 👍	<<locked>>	96%	55303	89%	**35	99%
[Ramshot Hunter]*	<<locked>>	97%	40422	65%	**11	93%
Ramshot TAC	<<locked>>	90%	55999	90%	**75	98%
Ramshot Wild Boar	<<locked>>	91%	55753	89%	**08	100%
Ramshot X-Terminator	<<locked>>	88%	56043	90%	**59	99%
ReloadSwiss RS 40	<<locked>>	87%	55434	89%	**56	100%
ReloadSwiss RS 50	<<locked>>	97%	55608	89%	**82	97%
ReloadSwiss RS 52 👍	<<locked>>	97%	55709	89%	**51	100%
ReloadSwiss RS 60	<<locked>>	97%	45919	74%	**75	100%
ReloadSwiss RS 62	<<locked>>	97%	40248	65%	**48	95%
[ReloadSwiss RS 70]*	<<locked>>	97%	41365	66%	**54	94%
Rottweil R 901	<<locked>>	91%	56115	90%	**43	100%
Rottweil R 902	<<locked>>	95%	55970	90%	**62	100%
Rottweil R 903	<<locked>>	97%	49197	79%	**26	99%
[Rottweil R 907]*	<<locked>>	97%	47964	77%	**54	94%
SNPE Vectan SP 10	<<locked>>	83%	55245	89%	**59	100%
SNPE Vectan SP 11	<<locked>>	97%	51401	82%	**85	99%
SNPE Vectan SP 7	<<locked>>	91%	55259	89%	**69	98%
SNPE Vectan SP 9	<<locked>>	93%	55941	90%	**02	100%
SNPE Vectan Tubal 3000	<<locked>>	92%	55883	90%	**90	100%
SNPE Vectan Tubal 5000	<<locked>>	97%	53679	86%	**67	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	97%	45310	73%	**88	94%
Shooters World Long Rifle	<<locked>>	97%	45832	73%	**34	96%
Shooters World Match Rifle	<<locked>>	93%	55608	89%	**92	100%
Shooters World Precision	<<locked>>	96%	55477	89%	**82	100%
Shooters World Tactical Rifle	<<locked>>	85%	55622	89%	**33	100%
Somchem S321	<<locked>>	88%	55753	89%	**85	100%
Somchem S335	<<locked>>	92%	55651	89%	**00	100%
Somchem S341	<<locked>>	92%	56086	90%	**85	99%
Somchem S355	<<locked>>	97%	50502	81%	**33	99%
Somchem S365	<<locked>>	97%	36521	59%	**82	98%
Vihtavuori N130	<<locked>>	89%	55898	90%	**67	100%
Vihtavuori N133	<<locked>>	94%	55637	89%	**80	100%
Vihtavuori N135	<<locked>>	97%	48515	78%	**54	100%
Vihtavuori N140	<<locked>>	95%	55854	90%	**49	100%
Vihtavuori N150	<<locked>>	97%	42873	69%	**88	99%
Vihtavuori N160	<<locked>>	97%	45223	73%	**67	97%
Vihtavuori N530	<<locked>>	89%	55985	90%	**82	100%
Vihtavuori N540	<<locked>>	95%	55825	90%	**75	100%
Vihtavuori N550	<<locked>>	97%	45339	73%	**07	97%
[Vihtavuori N555]*	<<locked>>	97%	30139	48%	**47	92%
Winchester 6.5 StaBALL	<<locked>>	97%	44295	71%	**25	98%
Winchester 748	<<locked>>	88%	55724	89%	**15	100%
Winchester 760	<<locked>>	97%	48370	78%	**52	95%
Winchester StaBALL Match	<<locked>>	86%	55941	90%	**15	100%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	39160	63%	**33	97%
[ADI AR 2208]*	<<locked>>	81%	33388	54%	**92	94%
ADI AR 2219	<<locked>>	81%	51459	83%	**03	100%
Accurate 2015	<<locked>>	81%	44512	71%	**52	100%
Accurate 2200	<<locked>>	81%	41307	66%	**36	96%
Accurate 2230	<<locked>>	81%	46354	74%	**18	99%
Accurate 2460	<<locked>>	81%	46441	74%	**28	100%
Accurate 2495	<<locked>>	81%	39146	63%	**36	100%
Accurate 2520	<<locked>>	81%	39711	64%	**59	99%
[Accurate 2700]*	<<locked>>	87%	38101	61%	**38	90%
Accurate 4064	<<locked>>	81%	33069	53%	**28	99%
[Accurate 4350]*	<<locked>>	85%	27166	44%	**39	90%
Alliant AR-Comp	<<locked>>	81%	40147	64%	**46	100%
Alliant Reloder- TS 15.5	<<locked>>	81%	32300	52%	**15	96%
Alliant Reloder-10x	<<locked>>	81%	48182	77%	**11	100%
Alliant Reloder-15	<<locked>>	81%	34911	56%	**64	95%
[Alliant Reloder-16]*	<<locked>>	85%	29370	47%	**59	90%
[Alliant Reloder-17]*	<<locked>>	81%	28036	45%	**52	92%
[Alliant Reloder-23]*	<<locked>>	94%	26498	42%	**06	90%
Baschieri & Pellagri 106	<<locked>>	81%	50314	81%	**95	100%
Baschieri & Pellagri 107	<<locked>>	81%	37956	61%	**26	95%
Hodgdon BL-C2	<<locked>>	81%	39552	63%	**75	98%
Hodgdon Benchmark	<<locked>>	81%	43395	70%	**43	99%
[Hodgdon CFE223]*	<<locked>>	81%	33185	53%	**57	93%
Hodgdon H322	<<locked>>	81%	43584	70%	**88	100%
Hodgdon H335	<<locked>>	81%	50488	81%	**03	100%
[Hodgdon H380]*	<<locked>>	81%	32851	53%	**08	92%
[Hodgdon H414]*	<<locked>>	88%	35752	57%	**10	90%
[Hodgdon Hybrid 100V]*	<<locked>>	83%	24874	40%	**18	90%
[Hodgdon LVR]*	<<locked>>	84%	30211	48%	**72	90%
[Hodgdon Superperformance]*	<<locked>>	93%	39218	63%	**82	90%
[Hodgdon VARGET]*	<<locked>>	81%	33141	53%	**88	94%
IMR 3031	<<locked>>	81%	35143	56%	**87	100%
[IMR 4064]*	<<locked>>	81%	32634	52%	**72	94%
[IMR 4166 Enduron]*	<<locked>>	83%	35317	57%	**92	90%
IMR 4198	<<locked>>	81%	49197	79%	**85	100%
[IMR 4350]*	<<locked>>	93%	37478	60%	**90	90%
[IMR 4451 Enduron]*	<<locked>>	86%	35911	58%	**34	90%
[IMR 4831]*	<<locked>>	89%	27644	44%	**23	90%
IMR 4895	<<locked>>	81%	35752	57%	**93	96%
IMR 8208 XBR	<<locked>>	81%	41220	66%	**46	99%
Lovex D073.4	<<locked>>	81%	48327	77%	**44	100%
Lovex D073.5	<<locked>>	81%	46253	74%	**25	100%
Lovex D073.6	<<locked>>	81%	37333	60%	**13	99%
Lovex S060	<<locked>>	81%	39987	64%	**80	97%
Lovex S062	<<locked>>	81%	34635	56%	**34	97%
[Lovex S065]*	<<locked>>	84%	31372	50%	**49	90%
[Lovex S070]*	<<locked>>	90%	34563	55%	**34	90%
Norma 201	<<locked>>	81%	38406	62%	**93	98%
Norma 202	<<locked>>	81%	38363	62%	**06	100%
Norma 203B	<<locked>>	81%	34432	55%	**57	96%
[Norma URP]*	<<locked>>	85%	28311	45%	**39	90%
Ramshot Big Game	<<locked>>	81%	33692	54%	**57	95%
[Ramshot Hunter]*	<<locked>>	91%	33518	54%	**64	90%
Ramshot TAC	<<locked>>	81%	41162	66%	**43	95%
Ramshot Wild Boar	<<locked>>	81%	40118	64%	**59	97%
Ramshot X-Terminator	<<locked>>	81%	44744	72%	**92	98%
ReloadSwiss RS 40	<<locked>>	81%	46398	74%	**25	100%
[ReloadSwiss RS 50]*	<<locked>>	81%	33475	54%	**95	90%
ReloadSwiss RS 52	<<locked>>	81%	32692	52%	**60	97%
[ReloadSwiss RS 60]*	<<locked>>	81%	27383	44%	**36	92%
[ReloadSwiss RS 62]*	<<locked>>	87%	29385	47%	**92	90%
[ReloadSwiss RS 70]*	<<locked>>	90%	32880	53%	**57	90%
Rottweil R 901	<<locked>>	81%	41974	67%	**39	100%
Rottweil R 902	<<locked>>	81%	36376	58%	**44	97%
[Rottweil R 903]*	<<locked>>	81%	29602	47%	**56	94%
[Rottweil R 907]*	<<locked>>	89%	37289	60%	**57	90%
SNPE Vectan SP 10	<<locked>>	81%	51677	83%	**13	100%
[SNPE Vectan SP 11]*	<<locked>>	81%	30951	50%	**01	94%
SNPE Vectan SP 7	<<locked>>	81%	38914	62%	**13	95%
SNPE Vectan SP 9	<<locked>>	81%	37637	60%	**06	97%
SNPE Vectan Tubal 3000	<<locked>>	81%	40074	64%	**67	100%
SNPE Vectan Tubal 5000	<<locked>>	81%	32967	53%	**42	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	88%	34200	55%	**88	90%
[Shooters World Long Rifle]*	<<locked>>	84%	31372	50%	**49	90%
Shooters World Match Rifle	<<locked>>	81%	37333	60%	**13	99%
Shooters World Precision	<<locked>>	81%	34635	56%	**34	97%
Shooters World Tactical Rifle	<<locked>>	81%	49182	79%	**44	99%
Somchem S321	<<locked>>	81%	44309	71%	**21	99%
Somchem S335	<<locked>>	81%	39624	64%	**70	100%
Somchem S341	<<locked>>	81%	38740	62%	**13	97%
Somchem S355	<<locked>>	81%	30835	49%	**65	95%
[Somchem S365]*	<<locked>>	82%	22945	37%	**08	90%
Vihtavuori N130	<<locked>>	81%	44831	72%	**23	100%
Vihtavuori N133	<<locked>>	81%	37492	60%	**18	100%
Vihtavuori N135	<<locked>>	81%	29834	48%	**29	99%
Vihtavuori N140	<<locked>>	81%	35549	57%	**34	99%
[Vihtavuori N150]*	<<locked>>	81%	26281	42%	**44	94%
[Vihtavuori N160]*	<<locked>>	83%	28718	46%	**19	90%
Vihtavuori N530	<<locked>>	81%	43424	70%	**92	99%
Vihtavuori N540	<<locked>>	81%	35433	57%	**57	99%
[Vihtavuori N550]*	<<locked>>	82%	28268	45%	**42	90%
[Vihtavuori N555]*	<<locked>>	93%	26672	43%	**46	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	26513	43%	**31	91%
Winchester 748	<<locked>>	81%	43134	69%	**34	99%
[Winchester 760]*	<<locked>>	88%	35752	57%	**10	90%
Winchester StaBALL Match	<<locked>>	81%	45977	74%	**70	99%

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