Load data for .300 RCM + .308 | 136gr | Geco ZERO

Recommended Powder(s): ADI AR 2206H, Hodgdon BL-C2, IMR 4895, Ramshot Wild Boar, ReloadSwiss RS 52

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.308 \| 136gr \| Geco ZERO
Manufacturer SKU:	2416070
Bullet Weight:	136gr \| 8.8g
Bullet Diameter:	0.308" \| 7.82mm
Bullet Length:	1.177" \| 29.9mm
Caliber:	.300 RCM load data
Case Length (l3):	2.090" \| 53.1mm
Cartridge Length (C.O.L.):	2.797" \| 71.1mm
Seated Depth:	0.470" \| 11.9mm
Shank Seated Depth:	0.470" \| 11.9mm
Case Capacity:	75.0 Grains of Water \| 4.87 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	63817 psi \| 4400 bar
LID:	LID_B9032_C371
Last updated:	2025-01-01

Load data for 192 loads in caliber .300 RCM with .308 | 136gr | Geco ZERO bullet and 96 powders such as ADI AR 2206H, Hodgdon BL-C2, IMR 4895, Ramshot Wild Boar, 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 "My Account " page to set the measure system (imperial vs. metric)
No data yet
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
ADI AR 2206H 👍	<<locked>>	92%	56565	89%	**43	99%
ADI AR 2208	<<locked>>	97%	55158	86%	**91	98%
ADI AR 2219	<<locked>>	84%	57043	89%	**17	100%
Accurate 2015	<<locked>>	88%	56739	89%	**41	100%
Accurate 2200	<<locked>>	90%	57334	90%	**07	98%
Accurate 2230	<<locked>>	86%	57101	89%	**97	100%
Accurate 2460	<<locked>>	86%	57072	89%	**94	100%
Accurate 2495	<<locked>>	92%	57188	90%	**27	100%
Accurate 2520	<<locked>>	91%	57217	90%	**36	100%
[Accurate 2700]*	<<locked>>	97%	55027	86%	**05	94%
Accurate 4064	<<locked>>	97%	55970	88%	**20	100%
Accurate 4350	<<locked>>	97%	41118	64%	**17	95%
Alliant AR-Comp	<<locked>>	91%	57217	90%	**04	100%
Alliant Reloder- TS 15.5	<<locked>>	97%	54737	86%	**23	99%
Alliant Reloder-10x	<<locked>>	86%	56623	89%	**58	100%
Alliant Reloder-15	<<locked>>	96%	56855	89%	**66	99%
Alliant Reloder-16	<<locked>>	97%	41814	66%	**36	95%
Alliant Reloder-17	<<locked>>	97%	48414	76%	**07	98%
Baschieri & Pellagri 106	<<locked>>	84%	57116	89%	**99	100%
Baschieri & Pellagri 107	<<locked>>	92%	57058	89%	**63	98%
Hodgdon BL-C2 👍	<<locked>>	91%	57058	89%	**66	100%
Hodgdon Benchmark	<<locked>>	90%	57188	90%	**68	100%
Hodgdon CFE223	<<locked>>	96%	56782	89%	**96	98%
Hodgdon H322	<<locked>>	89%	57043	89%	**17	100%
Hodgdon H335	<<locked>>	84%	56739	89%	**17	100%
Hodgdon H380	<<locked>>	97%	56623	89%	**46	98%
[Hodgdon H414]*	<<locked>>	97%	50140	79%	**77	94%
Hodgdon Hybrid 100V	<<locked>>	97%	38305	60%	**15	96%
Hodgdon LVR	<<locked>>	97%	46006	72%	**99	95%
Hodgdon VARGET	<<locked>>	97%	54534	85%	**84	98%
Hodgdon TrailBoss	<<locked>>	96%	32866	52%	**64	100%
IMR 3031	<<locked>>	96%	56840	89%	**56	100%
IMR 4064	<<locked>>	97%	53983	85%	**71	98%
IMR 4166 Enduron	<<locked>>	97%	54041	85%	**25	95%
IMR 4198	<<locked>>	86%	57334	90%	**25	100%
[IMR 4451 Enduron]*	<<locked>>	97%	51343	80%	**09	94%
[IMR 4831]*	<<locked>>	97%	35868	56%	**69	93%
IMR 4895 👍	<<locked>>	95%	57377	90%	**89	99%
IMR 8208 XBR	<<locked>>	91%	56739	89%	**07	100%
Lovex D073.4	<<locked>>	85%	56971	89%	**87	100%
Lovex D073.5	<<locked>>	87%	57072	89%	**94	100%
Lovex D073.6	<<locked>>	93%	57217	90%	**36	100%
Lovex S060	<<locked>>	92%	57087	89%	**71	99%
Lovex S062	<<locked>>	96%	56985	89%	**20	100%
Lovex S065	<<locked>>	97%	47268	74%	**43	95%
[Lovex S070]*	<<locked>>	97%	44759	70%	**13	93%
Norma 201	<<locked>>	93%	56521	89%	**07	100%
Norma 202	<<locked>>	93%	56956	89%	**14	100%
Norma 203B	<<locked>>	96%	56898	89%	**63	99%
Norma URP	<<locked>>	97%	42235	66%	**36	95%
Ramshot Big Game	<<locked>>	96%	56768	89%	**79	99%
[Ramshot Hunter]*	<<locked>>	97%	41553	65%	**00	92%
Ramshot TAC	<<locked>>	90%	57014	89%	**07	97%
Ramshot Wild Boar 👍	<<locked>>	91%	57348	90%	**56	99%
Ramshot X-Terminator	<<locked>>	88%	56637	89%	**87	99%
ReloadSwiss RS 14	<<locked>>	96%	32924	52%	**06	100%
ReloadSwiss RS 40	<<locked>>	87%	56927	89%	**04	100%
ReloadSwiss RS 50	<<locked>>	97%	56927	89%	**10	96%
ReloadSwiss RS 52 👍	<<locked>>	96%	56521	89%	**92	100%
ReloadSwiss RS 60	<<locked>>	97%	47311	74%	**97	99%
[ReloadSwiss RS 62]*	<<locked>>	97%	41698	65%	**46	94%
[ReloadSwiss RS 70]*	<<locked>>	97%	42670	67%	**53	93%
Rottweil R 901	<<locked>>	91%	56855	89%	**84	100%
Rottweil R 902	<<locked>>	95%	56695	89%	**94	100%
Rottweil R 903	<<locked>>	97%	51329	80%	**61	99%
[Rottweil R 907]*	<<locked>>	97%	49313	77%	**72	93%
SNPE Vectan SP 10	<<locked>>	83%	57130	90%	**17	100%
SNPE Vectan SP 11	<<locked>>	97%	53098	83%	**23	99%
SNPE Vectan SP 7	<<locked>>	91%	57014	89%	**10	98%
SNPE Vectan SP 9	<<locked>>	93%	56362	88%	**30	99%
SNPE Vectan Tubal 3000	<<locked>>	92%	56840	89%	**25	100%
SNPE Vectan Tubal 5000	<<locked>>	97%	54375	85%	**86	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	97%	46775	73%	**81	93%
Shooters World Long Rifle	<<locked>>	97%	47268	74%	**43	95%
Shooters World Match Rifle	<<locked>>	93%	57217	90%	**36	100%
Shooters World Precision	<<locked>>	96%	56985	89%	**20	100%
Shooters World Tactical Rifle	<<locked>>	85%	56826	89%	**68	100%
Somchem S321	<<locked>>	88%	56507	89%	**23	100%
Somchem S335	<<locked>>	92%	56869	89%	**31	100%
Somchem S341	<<locked>>	91%	56536	89%	**10	99%
Somchem S355	<<locked>>	97%	52141	82%	**68	99%
Somchem S365	<<locked>>	97%	37304	58%	**64	97%
Vihtavuori N120	<<locked>>	84%	57290	90%	**46	100%
Vihtavuori N130	<<locked>>	88%	56550	89%	**05	100%
Vihtavuori N133	<<locked>>	94%	56492	89%	**18	100%
Vihtavuori N135	<<locked>>	97%	49139	77%	**69	100%
Vihtavuori N140	<<locked>>	95%	56898	89%	**84	100%
Vihtavuori N150	<<locked>>	97%	43613	68%	**84	99%
Vihtavuori N160	<<locked>>	97%	46717	73%	**79	96%
Vihtavuori N530	<<locked>>	89%	56608	89%	**17	100%
Vihtavuori N540	<<locked>>	95%	56739	89%	**17	100%
Vihtavuori N550	<<locked>>	97%	46833	73%	**25	96%
Winchester 6.5 StaBALL	<<locked>>	97%	45049	71%	**10	98%
Winchester 748	<<locked>>	88%	56753	89%	**59	100%
[Winchester 760]*	<<locked>>	97%	50140	79%	**77	94%
Winchester StaBALL Match	<<locked>>	86%	56985	89%	**46	99%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	39740	62%	**12	96%
[ADI AR 2208]*	<<locked>>	81%	33939	53%	**48	93%
ADI AR 2219	<<locked>>	81%	52475	82%	**41	100%
Accurate 2015	<<locked>>	81%	44991	71%	**61	100%
Accurate 2200	<<locked>>	81%	41945	66%	**25	95%
Accurate 2230	<<locked>>	81%	47630	75%	**40	98%
Accurate 2460	<<locked>>	81%	47587	75%	**43	99%
Accurate 2495	<<locked>>	81%	39755	62%	**31	100%
Accurate 2520	<<locked>>	81%	40712	64%	**54	99%
[Accurate 2700]*	<<locked>>	89%	42598	67%	**79	90%
Accurate 4064	<<locked>>	81%	33431	52%	**87	98%
[Accurate 4350]*	<<locked>>	89%	30908	48%	**61	90%
Alliant AR-Comp	<<locked>>	81%	40843	64%	**48	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	81%	32779	51%	**64	94%
Alliant Reloder-10x	<<locked>>	81%	48863	77%	**36	100%
[Alliant Reloder-15]*	<<locked>>	81%	35462	56%	**33	94%
[Alliant Reloder-16]*	<<locked>>	89%	32938	52%	**97	90%
[Alliant Reloder-17]*	<<locked>>	82%	28993	45%	**98	90%
Baschieri & Pellagri 106	<<locked>>	81%	51285	80%	**13	100%
[Baschieri & Pellagri 107]*	<<locked>>	81%	38870	61%	**08	94%
Hodgdon BL-C2	<<locked>>	81%	40451	63%	**61	97%
Hodgdon Benchmark	<<locked>>	81%	43888	69%	**35	99%
[Hodgdon CFE223]*	<<locked>>	81%	33881	53%	**10	91%
Hodgdon H322	<<locked>>	81%	44324	69%	**04	100%
Hodgdon H335	<<locked>>	81%	51517	81%	**38	100%
[Hodgdon H380]*	<<locked>>	81%	33315	52%	**61	91%
[Hodgdon H414]*	<<locked>>	90%	39262	62%	**51	90%
[Hodgdon Hybrid 100V]*	<<locked>>	87%	28094	44%	**26	90%
[Hodgdon LVR]*	<<locked>>	87%	33663	53%	**03	90%
[Hodgdon VARGET]*	<<locked>>	81%	33620	53%	**41	92%
Hodgdon TrailBoss	<<locked>>	81%	26208	41%	**13	100%
IMR 3031	<<locked>>	81%	35375	55%	**59	99%
[IMR 4064]*	<<locked>>	81%	32996	52%	**21	93%
[IMR 4166 Enduron]*	<<locked>>	86%	39421	62%	**30	90%
IMR 4198	<<locked>>	81%	49414	77%	**04	100%
[IMR 4451 Enduron]*	<<locked>>	89%	39900	63%	**72	90%
[IMR 4831]*	<<locked>>	92%	30792	48%	**35	90%
IMR 4895	<<locked>>	81%	36201	57%	**62	95%
IMR 8208 XBR	<<locked>>	81%	41800	65%	**41	98%
Lovex D073.4	<<locked>>	81%	49313	77%	**63	99%
Lovex D073.5	<<locked>>	81%	46862	73%	**36	99%
Lovex D073.6	<<locked>>	81%	38116	60%	**99	98%
Lovex S060	<<locked>>	81%	40437	63%	**66	96%
Lovex S062	<<locked>>	81%	34969	55%	**94	96%
[Lovex S065]*	<<locked>>	87%	34925	55%	**67	90%
[Lovex S070]*	<<locked>>	92%	38783	61%	**82	90%
Norma 201	<<locked>>	81%	38899	61%	**72	97%
Norma 202	<<locked>>	81%	38885	61%	**92	99%
[Norma 203B]*	<<locked>>	81%	34853	55%	**20	94%
[Norma URP]*	<<locked>>	88%	31879	50%	**67	90%
[Ramshot Big Game]*	<<locked>>	81%	34403	54%	**23	93%
[Ramshot Hunter]*	<<locked>>	93%	37115	58%	**99	90%
[Ramshot TAC]*	<<locked>>	81%	41814	66%	**22	93%
Ramshot Wild Boar	<<locked>>	81%	40872	64%	**44	96%
Ramshot X-Terminator	<<locked>>	81%	45484	71%	**94	97%
ReloadSwiss RS 14	<<locked>>	81%	26382	41%	**49	100%
ReloadSwiss RS 40	<<locked>>	81%	46876	73%	**33	99%
[ReloadSwiss RS 50]*	<<locked>>	84%	37420	59%	**26	90%
ReloadSwiss RS 52	<<locked>>	81%	33431	52%	**33	96%
[ReloadSwiss RS 60]*	<<locked>>	81%	27876	44%	**62	90%
[ReloadSwiss RS 62]*	<<locked>>	90%	32677	51%	**17	90%
[ReloadSwiss RS 70]*	<<locked>>	92%	36463	57%	**92	90%
Rottweil R 901	<<locked>>	81%	42583	67%	**41	99%
Rottweil R 902	<<locked>>	81%	37173	58%	**23	96%
[Rottweil R 903]*	<<locked>>	81%	30197	47%	**02	93%
[Rottweil R 907]*	<<locked>>	91%	41278	65%	**05	90%
SNPE Vectan SP 10	<<locked>>	81%	52591	82%	**51	100%
[SNPE Vectan SP 11]*	<<locked>>	81%	31604	50%	**51	92%
[SNPE Vectan SP 7]*	<<locked>>	81%	39595	62%	**85	93%
SNPE Vectan SP 9	<<locked>>	81%	38406	60%	**79	95%
SNPE Vectan Tubal 3000	<<locked>>	81%	40727	64%	**49	99%
SNPE Vectan Tubal 5000	<<locked>>	81%	33460	52%	**95	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	91%	38566	60%	**23	90%
[Shooters World Long Rifle]*	<<locked>>	87%	34925	55%	**67	90%
Shooters World Match Rifle	<<locked>>	81%	38116	60%	**99	98%
Shooters World Precision	<<locked>>	81%	34969	55%	**94	96%
Shooters World Tactical Rifle	<<locked>>	81%	49937	78%	**56	99%
Somchem S321	<<locked>>	81%	45223	71%	**20	99%
Somchem S335	<<locked>>	81%	39987	63%	**46	100%
Somchem S341	<<locked>>	81%	39697	62%	**95	96%
[Somchem S355]*	<<locked>>	81%	31270	49%	**15	93%
[Somchem S365]*	<<locked>>	85%	25599	40%	**00	90%
Vihtavuori N120	<<locked>>	81%	52808	83%	**87	100%
Vihtavuori N130	<<locked>>	81%	45063	71%	**18	100%
Vihtavuori N133	<<locked>>	81%	37985	60%	**97	100%
Vihtavuori N135	<<locked>>	81%	30226	47%	**79	99%
Vihtavuori N140	<<locked>>	81%	36376	57%	**10	99%
[Vihtavuori N150]*	<<locked>>	81%	26600	42%	**61	93%
[Vihtavuori N160]*	<<locked>>	86%	32010	50%	**28	90%
Vihtavuori N530	<<locked>>	81%	44063	69%	**00	98%
Vihtavuori N540	<<locked>>	81%	36143	57%	**33	98%
[Vihtavuori N550]*	<<locked>>	85%	31894	50%	**71	90%
[Winchester 6.5 StaBALL]*	<<locked>>	82%	27920	44%	**74	90%
Winchester 748	<<locked>>	81%	44237	69%	**49	99%
[Winchester 760]*	<<locked>>	90%	39262	62%	**51	90%
Winchester StaBALL Match	<<locked>>	81%	46818	73%	**76	98%

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.