Load data for .300 RCM + .308 | 150gr Hornady ECX

Recommended Powder(s): Baschieri & Pellagri 107, Hodgdon BL-C2, IMR 4895, Norma 203B, ReloadSwiss RS 52

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.308 \| 150gr Hornady ECX
Manufacturer SKU:	30372
Bullet Weight:	150gr \| 9.7g
Bullet Diameter:	0.308" \| 7.82mm
Bullet Length:	1.200" \| 30.5mm
Caliber:	.300 RCM load data
Case Length (l3):	2.090" \| 53.1mm
Cartridge Length (C.O.L.):	2.556" \| 64.9mm
Seated Depth:	0.734" \| 18.6mm
Shank Seated Depth:	0.734" \| 18.6mm
Case Capacity:	75.0 Grains of Water \| 4.87 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	63817 psi \| 4400 bar
LID:	LID_B1382_C371
Last updated:	2025-01-01

Load data for 196 loads in caliber .300 RCM with .308 | 150gr Hornady ECX bullet and 98 powders such as Baschieri & Pellagri 107, Hodgdon BL-C2, IMR 4895, Norma 203B, 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".

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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.

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%	57058	89%	**86	99%
ADI AR 2208	<<locked>>	97%	55216	87%	**30	99%
ADI AR 2219	<<locked>>	83%	56275	88%	**33	100%
Accurate 2015	<<locked>>	88%	56869	89%	**74	100%
Accurate 2200	<<locked>>	90%	57000	89%	**40	98%
Accurate 2230	<<locked>>	86%	57058	89%	**30	100%
Accurate 2460	<<locked>>	86%	56942	89%	**33	100%
Accurate 2495	<<locked>>	92%	57348	90%	**56	100%
Accurate 2520	<<locked>>	91%	57217	90%	**76	100%
[Accurate 2700]*	<<locked>>	97%	54447	85%	**41	94%
Accurate 4064	<<locked>>	97%	55637	87%	**53	100%
Accurate 4350	<<locked>>	97%	41713	65%	**85	96%
Alliant AR-Comp	<<locked>>	90%	56217	88%	**23	100%
Alliant Reloder- TS 15.5	<<locked>>	96%	53896	84%	**46	100%
Alliant Reloder-10x	<<locked>>	86%	57276	90%	**97	100%
Alliant Reloder-15	<<locked>>	96%	57058	89%	**95	99%
Alliant Reloder-16	<<locked>>	97%	41916	66%	**85	96%
Alliant Reloder-17	<<locked>>	97%	48153	75%	**49	99%
Baschieri & Pellagri 106	<<locked>>	84%	56565	89%	**28	100%
Baschieri & Pellagri 107 👍	<<locked>>	92%	56637	89%	**92	99%
Hodgdon BL-C2 👍	<<locked>>	90%	56710	89%	**02	100%
Hodgdon Benchmark	<<locked>>	89%	57043	89%	**04	100%
Hodgdon CFE223	<<locked>>	96%	57305	90%	**38	99%
Hodgdon H322	<<locked>>	89%	57000	89%	**40	100%
Hodgdon H335	<<locked>>	84%	57305	90%	**56	100%
Hodgdon H380	<<locked>>	97%	56275	88%	**72	98%
Hodgdon H414	<<locked>>	97%	50270	79%	**27	95%
Hodgdon Hybrid 100V	<<locked>>	97%	38319	60%	**77	96%
Hodgdon LVR	<<locked>>	97%	46195	72%	**44	96%
[Hodgdon Superperformance]*	<<locked>>	97%	46195	72%	**51	92%
Hodgdon VARGET	<<locked>>	97%	54549	85%	**20	99%
Hodgdon TrailBoss	<<locked>>	96%	32793	51%	**39	100%
IMR 3031	<<locked>>	96%	57000	89%	**89	100%
IMR 4064	<<locked>>	97%	53621	84%	**97	99%
IMR 4166 Enduron	<<locked>>	97%	53476	84%	**54	95%
IMR 4198	<<locked>>	86%	57392	90%	**51	100%
IMR 4451 Enduron	<<locked>>	97%	51097	80%	**51	95%
[IMR 4831]*	<<locked>>	97%	35389	55%	**21	93%
IMR 4895 👍	<<locked>>	95%	56449	88%	**05	99%
IMR 8208 XBR	<<locked>>	91%	57159	90%	**49	100%
Lovex D073.4	<<locked>>	85%	56681	89%	**20	100%
Lovex D073.5	<<locked>>	87%	57261	90%	**36	100%
Lovex D073.6	<<locked>>	93%	56666	89%	**69	100%
Lovex S060	<<locked>>	92%	57058	89%	**10	99%
Lovex S062	<<locked>>	97%	57334	90%	**66	100%
Lovex S065	<<locked>>	97%	47050	74%	**89	95%
[Lovex S070]*	<<locked>>	97%	44121	69%	**49	93%
Norma 201	<<locked>>	93%	56478	88%	**40	100%
Norma 202	<<locked>>	93%	56478	88%	**43	100%
Norma 203B 👍	<<locked>>	96%	56985	89%	**05	99%
Norma URP	<<locked>>	97%	41626	65%	**69	95%
Ramshot Big Game	<<locked>>	96%	57014	89%	**12	99%
[Ramshot Hunter]*	<<locked>>	97%	41684	65%	**62	93%
Ramshot TAC	<<locked>>	91%	57377	90%	**56	98%
Ramshot Wild Boar	<<locked>>	91%	56434	88%	**79	99%
Ramshot X-Terminator	<<locked>>	88%	56449	88%	**20	99%
ReloadSwiss RS 14	<<locked>>	96%	33025	52%	**78	100%
ReloadSwiss RS 40	<<locked>>	87%	57174	90%	**40	100%
ReloadSwiss RS 50	<<locked>>	97%	57406	90%	**63	97%
ReloadSwiss RS 52 👍	<<locked>>	96%	56768	89%	**25	100%
ReloadSwiss RS 60	<<locked>>	97%	46688	73%	**33	99%
ReloadSwiss RS 62	<<locked>>	97%	41249	65%	**92	95%
[ReloadSwiss RS 70]*	<<locked>>	97%	42728	67%	**12	94%
Rottweil R 901	<<locked>>	90%	56594	89%	**17	100%
Rottweil R 902	<<locked>>	95%	57290	90%	**43	100%
Rottweil R 903	<<locked>>	97%	50531	79%	**97	99%
[Rottweil R 907]*	<<locked>>	97%	49124	77%	**08	93%
SNPE Vectan SP 10	<<locked>>	83%	57232	90%	**53	100%
SNPE Vectan SP 11	<<locked>>	97%	53229	83%	**69	99%
SNPE Vectan SP 7	<<locked>>	91%	56768	89%	**46	98%
SNPE Vectan SP 9	<<locked>>	93%	57087	89%	**76	99%
SNPE Vectan Tubal 3000	<<locked>>	92%	57348	90%	**67	100%
SNPE Vectan Tubal 5000	<<locked>>	97%	54592	86%	**25	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	97%	46978	74%	**40	94%
Shooters World Long Rifle	<<locked>>	97%	47050	74%	**89	95%
Shooters World Match Rifle	<<locked>>	93%	56666	89%	**69	100%
Shooters World Precision	<<locked>>	97%	57334	90%	**66	100%
Shooters World Tactical Rifle	<<locked>>	85%	57188	90%	**13	100%
Somchem S321	<<locked>>	88%	56652	89%	**59	100%
Somchem S335	<<locked>>	92%	56724	89%	**71	100%
Somchem S341	<<locked>>	92%	57087	89%	**56	99%
Somchem S355	<<locked>>	97%	51895	81%	**04	99%
Somchem S365	<<locked>>	97%	37014	58%	**17	98%
Vihtavuori N120	<<locked>>	83%	56855	89%	**66	100%
Vihtavuori N130	<<locked>>	89%	56985	89%	**35	100%
Vihtavuori N133	<<locked>>	94%	56463	88%	**44	100%
Vihtavuori N135	<<locked>>	97%	49168	77%	**05	100%
Vihtavuori N140	<<locked>>	95%	57406	90%	**27	100%
Vihtavuori N150	<<locked>>	97%	43613	68%	**30	99%
Vihtavuori N160	<<locked>>	96%	45977	72%	**12	96%
Vihtavuori N530	<<locked>>	89%	56710	89%	**53	100%
Vihtavuori N540	<<locked>>	95%	56521	89%	**43	100%
Vihtavuori N550	<<locked>>	97%	46296	73%	**67	97%
[Vihtavuori N555]*	<<locked>>	97%	30937	48%	**62	92%
Winchester 6.5 StaBALL	<<locked>>	97%	45252	71%	**69	98%
Winchester 748	<<locked>>	88%	56782	89%	**95	100%
Winchester 760	<<locked>>	97%	50270	79%	**27	95%
Winchester StaBALL Match	<<locked>>	86%	57000	89%	**86	100%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	39987	63%	**74	97%
[ADI AR 2208]*	<<locked>>	81%	33852	53%	**10	93%
ADI AR 2219	<<locked>>	81%	52431	82%	**77	100%
Accurate 2015	<<locked>>	81%	45107	71%	**00	100%
Accurate 2200	<<locked>>	81%	42264	66%	**80	95%
Accurate 2230	<<locked>>	81%	47703	75%	**82	99%
Accurate 2460	<<locked>>	81%	47747	75%	**85	100%
Accurate 2495	<<locked>>	81%	40219	63%	**87	100%
Accurate 2520	<<locked>>	81%	40712	64%	**03	99%
[Accurate 2700]*	<<locked>>	88%	40524	64%	**92	90%
Accurate 4064	<<locked>>	81%	33823	53%	**52	99%
[Accurate 4350]*	<<locked>>	86%	29051	46%	**77	90%
Alliant AR-Comp	<<locked>>	81%	40814	64%	**97	100%
Alliant Reloder- TS 15.5	<<locked>>	81%	32953	52%	**30	95%
Alliant Reloder-10x	<<locked>>	81%	48965	77%	**72	100%
[Alliant Reloder-15]*	<<locked>>	81%	35694	56%	**98	94%
[Alliant Reloder-16]*	<<locked>>	87%	31270	49%	**07	90%
[Alliant Reloder-17]*	<<locked>>	81%	28689	45%	**64	91%
Baschieri & Pellagri 106	<<locked>>	81%	51416	81%	**59	100%
Baschieri & Pellagri 107	<<locked>>	81%	39001	61%	**71	95%
Hodgdon BL-C2	<<locked>>	81%	40567	64%	**23	98%
Hodgdon Benchmark	<<locked>>	81%	44193	69%	**87	99%
[Hodgdon CFE223]*	<<locked>>	81%	34127	53%	**85	93%
Hodgdon H322	<<locked>>	81%	44193	69%	**43	100%
Hodgdon H335	<<locked>>	81%	51648	81%	**74	100%
[Hodgdon H380]*	<<locked>>	81%	33663	53%	**30	92%
[Hodgdon H414]*	<<locked>>	89%	38130	60%	**77	90%
[Hodgdon Hybrid 100V]*	<<locked>>	85%	26513	42%	**49	90%
[Hodgdon LVR]*	<<locked>>	85%	31966	50%	**16	90%
[Hodgdon Superperformance]*	<<locked>>	94%	41495	65%	**46	90%
[Hodgdon VARGET]*	<<locked>>	81%	33504	52%	**03	93%
Hodgdon TrailBoss	<<locked>>	86%	28398	44%	**47	100%
IMR 3031	<<locked>>	81%	35752	56%	**25	100%
[IMR 4064]*	<<locked>>	81%	33301	52%	**97	94%
[IMR 4166 Enduron]*	<<locked>>	85%	37434	59%	**46	90%
IMR 4198	<<locked>>	81%	49777	78%	**40	100%
[IMR 4451 Enduron]*	<<locked>>	87%	38392	60%	**98	90%
[IMR 4831]*	<<locked>>	90%	29298	46%	**54	90%
IMR 4895	<<locked>>	81%	36564	57%	**31	96%
IMR 8208 XBR	<<locked>>	81%	42047	66%	**90	98%
Lovex D073.4	<<locked>>	81%	49182	77%	**05	100%
Lovex D073.5	<<locked>>	81%	47224	74%	**79	100%
Lovex D073.6	<<locked>>	81%	38218	60%	**54	99%
Lovex S060	<<locked>>	81%	40582	64%	**15	97%
Lovex S062	<<locked>>	81%	35244	55%	**52	97%
[Lovex S065]*	<<locked>>	85%	32866	51%	**84	90%
[Lovex S070]*	<<locked>>	90%	36405	57%	**89	90%
Norma 201	<<locked>>	81%	39146	61%	**28	98%
Norma 202	<<locked>>	81%	39059	61%	**44	99%
Norma 203B	<<locked>>	81%	34940	55%	**82	95%
[Norma URP]*	<<locked>>	86%	29950	47%	**80	90%
[Ramshot Big Game]*	<<locked>>	81%	34374	54%	**82	94%
[Ramshot Hunter]*	<<locked>>	92%	35781	56%	**25	90%
[Ramshot TAC]*	<<locked>>	81%	41800	66%	**77	94%
Ramshot Wild Boar	<<locked>>	81%	40886	64%	**00	97%
Ramshot X-Terminator	<<locked>>	81%	45498	71%	**36	98%
ReloadSwiss RS 14	<<locked>>	83%	27282	43%	**54	100%
ReloadSwiss RS 40	<<locked>>	81%	47253	74%	**82	100%
[ReloadSwiss RS 50]*	<<locked>>	82%	35389	55%	**36	90%
ReloadSwiss RS 52	<<locked>>	81%	33417	52%	**92	96%
[ReloadSwiss RS 60]*	<<locked>>	81%	28137	44%	**48	92%
[ReloadSwiss RS 62]*	<<locked>>	88%	31299	49%	**39	90%
[ReloadSwiss RS 70]*	<<locked>>	91%	34867	55%	**15	90%
Rottweil R 901	<<locked>>	81%	42902	67%	**84	100%
Rottweil R 902	<<locked>>	81%	37101	58%	**79	97%
[Rottweil R 903]*	<<locked>>	81%	30443	48%	**74	94%
[Rottweil R 907]*	<<locked>>	90%	39900	63%	**25	90%
SNPE Vectan SP 10	<<locked>>	81%	52605	82%	**81	100%
[SNPE Vectan SP 11]*	<<locked>>	81%	31705	50%	**20	93%
[SNPE Vectan SP 7]*	<<locked>>	81%	39900	63%	**48	94%
SNPE Vectan SP 9	<<locked>>	81%	38537	60%	**38	96%
SNPE Vectan Tubal 3000	<<locked>>	81%	40843	64%	**98	100%
SNPE Vectan Tubal 5000	<<locked>>	81%	33562	53%	**57	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	89%	36318	57%	**36	90%
[Shooters World Long Rifle]*	<<locked>>	85%	32866	51%	**84	90%
Shooters World Match Rifle	<<locked>>	81%	38218	60%	**54	99%
Shooters World Precision	<<locked>>	81%	35244	55%	**52	97%
Shooters World Tactical Rifle	<<locked>>	81%	49719	78%	**99	99%
Somchem S321	<<locked>>	81%	45194	71%	**72	99%
Somchem S335	<<locked>>	81%	40495	63%	**05	100%
Somchem S341	<<locked>>	81%	39682	62%	**54	96%
[Somchem S355]*	<<locked>>	81%	31749	50%	**90	94%
[Somchem S365]*	<<locked>>	83%	24656	39%	**39	90%
Vihtavuori N120	<<locked>>	81%	52910	83%	**17	100%
Vihtavuori N130	<<locked>>	81%	45455	71%	**71	100%
Vihtavuori N133	<<locked>>	81%	38247	60%	**52	100%
Vihtavuori N135	<<locked>>	81%	30371	48%	**41	99%
Vihtavuori N140	<<locked>>	81%	36390	57%	**72	99%
[Vihtavuori N150]*	<<locked>>	81%	26774	42%	**33	93%
[Vihtavuori N160]*	<<locked>>	84%	30182	47%	**48	90%
Vihtavuori N530	<<locked>>	81%	44251	69%	**43	99%
Vihtavuori N540	<<locked>>	81%	36129	57%	**85	99%
[Vihtavuori N550]*	<<locked>>	83%	29936	47%	**84	90%
[Vihtavuori N555]*	<<locked>>	94%	28456	45%	**84	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	27122	42%	**23	91%
Winchester 748	<<locked>>	81%	44382	70%	**92	99%
[Winchester 760]*	<<locked>>	89%	38130	60%	**77	90%
Winchester StaBALL Match	<<locked>>	81%	47036	74%	**25	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.