Load data for .300 RCM + .308 | 150gr | Barnes TTSX BT

Recommended Powder(s): Alliant Reloder-15, Baschieri & Pellagri 107, IMR 4895, Ramshot Big Game, ReloadSwiss RS 52

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.308 \| 150gr \| Barnes TTSX BT
Manufacturer SKU:	30366
Bullet Weight:	150gr \| 9.7g
Bullet Diameter:	0.308" \| 7.82mm
Bullet Length:	1.300" \| 33.0mm
Caliber:	.300 RCM load data
Case Length (l3):	2.090" \| 53.1mm
Cartridge Length (C.O.L.):	2.797" \| 71.1mm
Seated Depth:	0.593" \| 15.1mm
Shank Seated Depth:	0.468" \| 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_B608_C371
Last updated:	2025-01-01
Recommended Twist Rate:	1:12 - 1:10

Load data for 194 loads in caliber .300 RCM with .308 | 150gr | Barnes TTSX BT bullet and 97 powders such as Alliant Reloder-15, Baschieri & Pellagri 107, IMR 4895, 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".

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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>>	91%	56753	89%	**99	100%
ADI AR 2208	<<locked>>	97%	57116	89%	**86	99%
Accurate 2015	<<locked>>	87%	56927	89%	**94	100%
Accurate 2200	<<locked>>	89%	57363	90%	**63	99%
Accurate 2230	<<locked>>	85%	56971	89%	**49	100%
Accurate 2460	<<locked>>	85%	56695	89%	**49	100%
Accurate 2495	<<locked>>	90%	56710	89%	**63	100%
Accurate 2520	<<locked>>	89%	57305	90%	**92	100%
Accurate 2700	<<locked>>	97%	56637	89%	**97	95%
Accurate 4064	<<locked>>	96%	56840	89%	**89	100%
Accurate 4350	<<locked>>	97%	43685	68%	**38	97%
Alliant AR-Comp	<<locked>>	90%	57421	90%	**49	100%
Alliant Reloder- TS 15.5	<<locked>>	97%	57043	89%	**12	100%
Alliant Reloder-10x	<<locked>>	84%	56478	89%	**97	100%
Alliant Reloder-15 👍	<<locked>>	95%	57276	90%	**28	99%
Alliant Reloder-16	<<locked>>	97%	43453	68%	**44	97%
Alliant Reloder-17	<<locked>>	97%	50778	80%	**15	99%
[Alliant Reloder-23]*	<<locked>>	97%	31270	49%	**59	93%
Baschieri & Pellagri 106	<<locked>>	83%	57319	90%	**58	100%
Baschieri & Pellagri 107 👍	<<locked>>	91%	57188	90%	**25	99%
Hodgdon BL-C2	<<locked>>	89%	56855	89%	**18	100%
Hodgdon Benchmark	<<locked>>	89%	57377	90%	**33	100%
Hodgdon CFE223	<<locked>>	94%	56507	89%	**51	99%
Hodgdon H322	<<locked>>	87%	56710	89%	**59	100%
Hodgdon H380	<<locked>>	95%	56275	88%	**99	98%
Hodgdon H414	<<locked>>	97%	52315	82%	**82	96%
[Hodgdon H4350]*	<<locked>>	97%	42743	67%	**36	92%
Hodgdon Hybrid 100V	<<locked>>	97%	40059	63%	**30	97%
Hodgdon LVR	<<locked>>	97%	48138	75%	**07	97%
[Hodgdon Superperformance]*	<<locked>>	97%	47848	75%	**13	93%
Hodgdon VARGET	<<locked>>	97%	56855	89%	**76	99%
Hodgdon TrailBoss	<<locked>>	97%	33489	52%	**72	100%
IMR 3031	<<locked>>	94%	56449	88%	**92	100%
IMR 4064	<<locked>>	96%	55492	87%	**49	99%
IMR 4166 Enduron	<<locked>>	97%	55941	88%	**23	96%
IMR 4198	<<locked>>	84%	56855	89%	**61	100%
[IMR 4350]*	<<locked>>	97%	45266	71%	**89	93%
IMR 4451 Enduron	<<locked>>	97%	53708	84%	**20	96%
IMR 4831	<<locked>>	97%	37492	59%	**90	95%
IMR 4895 👍	<<locked>>	93%	56768	89%	**31	100%
IMR 8208 XBR	<<locked>>	89%	56608	89%	**63	100%
Lovex D073.4	<<locked>>	84%	56811	89%	**36	100%
Lovex D073.5	<<locked>>	85%	57217	90%	**56	100%
Lovex D073.6	<<locked>>	91%	56768	89%	**86	100%
Lovex S060	<<locked>>	91%	57392	90%	**33	100%
Lovex S062	<<locked>>	95%	56826	89%	**72	100%
Lovex S065	<<locked>>	97%	49327	77%	**54	96%
[Lovex S070]*	<<locked>>	97%	46731	73%	**22	94%
Norma 201	<<locked>>	92%	56608	89%	**66	100%
Norma 202	<<locked>>	92%	57087	89%	**72	100%
Norma 203B	<<locked>>	95%	56391	88%	**18	100%
Norma URP	<<locked>>	97%	44237	69%	**48	97%
Ramshot Big Game 👍	<<locked>>	94%	56318	88%	**28	99%
[Ramshot Hunter]*	<<locked>>	97%	43105	68%	**18	94%
Ramshot TAC	<<locked>>	89%	56550	89%	**63	98%
Ramshot Wild Boar	<<locked>>	90%	57217	90%	**09	100%
Ramshot X-Terminator	<<locked>>	87%	57159	90%	**49	99%
ReloadSwiss RS 14	<<locked>>	97%	33678	53%	**14	100%
ReloadSwiss RS 40	<<locked>>	86%	56768	89%	**56	100%
ReloadSwiss RS 50	<<locked>>	95%	56536	89%	**69	97%
ReloadSwiss RS 52 👍	<<locked>>	95%	56971	89%	**51	100%
ReloadSwiss RS 60	<<locked>>	97%	49197	77%	**99	100%
ReloadSwiss RS 62	<<locked>>	97%	44019	69%	**64	96%
ReloadSwiss RS 70	<<locked>>	97%	44411	70%	**71	95%
Rottweil R 901	<<locked>>	89%	57029	89%	**40	100%
Rottweil R 902	<<locked>>	93%	56637	89%	**53	100%
Rottweil R 903	<<locked>>	97%	53766	84%	**59	100%
[Rottweil R 907]*	<<locked>>	97%	50966	80%	**71	94%
SNPE Vectan SP 11	<<locked>>	97%	55187	86%	**22	99%
SNPE Vectan SP 7	<<locked>>	90%	57276	90%	**76	98%
SNPE Vectan SP 9	<<locked>>	92%	57246	90%	**99	100%
SNPE Vectan Tubal 3000	<<locked>>	90%	56565	89%	**81	100%
SNPE Vectan Tubal 5000	<<locked>>	97%	57290	90%	**87	100%
SNPE Vectan Tubal 7000	<<locked>>	97%	49037	77%	**92	95%
Shooters World Long Rifle	<<locked>>	97%	49327	77%	**54	96%
Shooters World Match Rifle	<<locked>>	91%	56768	89%	**86	100%
Shooters World Precision	<<locked>>	95%	56826	89%	**72	100%
Shooters World Tactical Rifle	<<locked>>	84%	57406	90%	**33	100%
Somchem S321	<<locked>>	87%	57377	90%	**86	100%
Somchem S335	<<locked>>	91%	56927	89%	**90	100%
Somchem S341	<<locked>>	90%	56753	89%	**69	99%
Somchem S355	<<locked>>	97%	54317	85%	**66	100%
Somchem S365	<<locked>>	97%	39334	62%	**89	99%
Vihtavuori N130	<<locked>>	88%	57319	90%	**61	100%
Vihtavuori N133	<<locked>>	93%	56753	89%	**67	100%
Vihtavuori N135	<<locked>>	96%	51343	80%	**61	100%
Vihtavuori N140	<<locked>>	94%	57029	89%	**36	100%
Vihtavuori N150	<<locked>>	97%	45643	72%	**85	99%
Vihtavuori N160	<<locked>>	97%	49124	77%	**84	97%
Vihtavuori N530	<<locked>>	88%	57421	90%	**89	100%
Vihtavuori N540	<<locked>>	94%	57334	90%	**76	100%
Vihtavuori N550	<<locked>>	97%	49110	77%	**33	98%
[Vihtavuori N555]*	<<locked>>	97%	33011	52%	**38	93%
Winchester 6.5 StaBALL	<<locked>>	97%	46862	73%	**28	99%
Winchester 748	<<locked>>	87%	56913	89%	**18	100%
Winchester 760	<<locked>>	97%	52315	82%	**82	96%
Winchester StaBALL Match	<<locked>>	85%	57377	90%	**09	100%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	41466	65%	**26	97%
[ADI AR 2208]*	<<locked>>	81%	35288	55%	**62	94%
Accurate 2015	<<locked>>	81%	47137	74%	**53	100%
Accurate 2200	<<locked>>	81%	43758	69%	**30	96%
Accurate 2230	<<locked>>	81%	49647	78%	**35	99%
Accurate 2460	<<locked>>	81%	49574	78%	**44	100%
Accurate 2495	<<locked>>	81%	41727	65%	**33	100%
Accurate 2520	<<locked>>	81%	42844	67%	**62	100%
[Accurate 2700]*	<<locked>>	85%	38754	61%	**79	90%
Accurate 4064	<<locked>>	81%	35259	55%	**05	99%
[Accurate 4350]*	<<locked>>	85%	28645	45%	**80	90%
Alliant AR-Comp	<<locked>>	81%	42975	67%	**43	100%
Alliant Reloder- TS 15.5	<<locked>>	81%	34374	54%	**82	96%
Alliant Reloder-10x	<<locked>>	81%	51010	80%	**25	100%
Alliant Reloder-15	<<locked>>	81%	37275	58%	**48	95%
[Alliant Reloder-16]*	<<locked>>	84%	29849	47%	**90	90%
[Alliant Reloder-17]*	<<locked>>	81%	29762	47%	**20	93%
[Alliant Reloder-23]*	<<locked>>	93%	27543	43%	**38	90%
Baschieri & Pellagri 106	<<locked>>	81%	53026	83%	**99	100%
Baschieri & Pellagri 107	<<locked>>	81%	40538	64%	**23	96%
Hodgdon BL-C2	<<locked>>	81%	42598	67%	**79	99%
Hodgdon Benchmark	<<locked>>	81%	45730	72%	**36	99%
[Hodgdon CFE223]*	<<locked>>	81%	35404	55%	**38	94%
Hodgdon H322	<<locked>>	81%	46108	72%	**89	100%
[Hodgdon H380]*	<<locked>>	81%	35041	55%	**82	93%
[Hodgdon H414]*	<<locked>>	86%	36767	58%	**71	90%
[Hodgdon H4350]*	<<locked>>	94%	38928	61%	**51	90%
[Hodgdon Hybrid 100V]*	<<locked>>	82%	25512	40%	**36	90%
[Hodgdon LVR]*	<<locked>>	83%	31082	49%	**13	90%
[Hodgdon Superperformance]*	<<locked>>	91%	40059	63%	**46	90%
[Hodgdon VARGET]*	<<locked>>	81%	35070	55%	**56	94%
Hodgdon TrailBoss	<<locked>>	84%	27862	44%	**54	100%
IMR 3031	<<locked>>	81%	37449	59%	**77	100%
IMR 4064	<<locked>>	81%	34548	54%	**46	95%
[IMR 4166 Enduron]*	<<locked>>	83%	36608	57%	**43	90%
IMR 4198	<<locked>>	81%	51285	80%	**82	100%
[IMR 4350]*	<<locked>>	92%	38493	60%	**41	90%
[IMR 4451 Enduron]*	<<locked>>	84%	36448	57%	**75	90%
[IMR 4831]*	<<locked>>	88%	28529	45%	**54	90%
IMR 4895	<<locked>>	81%	38072	60%	**84	96%
IMR 8208 XBR	<<locked>>	81%	43555	68%	**40	99%
Lovex D073.4	<<locked>>	81%	51285	80%	**58	100%
Lovex D073.5	<<locked>>	81%	49284	77%	**31	100%
Lovex D073.6	<<locked>>	81%	40263	63%	**10	99%
Lovex S060	<<locked>>	81%	42076	66%	**71	97%
Lovex S062	<<locked>>	81%	36840	58%	**12	97%
[Lovex S065]*	<<locked>>	83%	32053	50%	**74	90%
[Lovex S070]*	<<locked>>	88%	35708	56%	**89	90%
Norma 201	<<locked>>	81%	40480	63%	**77	98%
Norma 202	<<locked>>	81%	40872	64%	**00	100%
Norma 203B	<<locked>>	81%	36535	57%	**41	96%
[Norma URP]*	<<locked>>	84%	29573	46%	**90	90%
Ramshot Big Game	<<locked>>	81%	35984	56%	**44	95%
[Ramshot Hunter]*	<<locked>>	90%	34345	54%	**05	90%
Ramshot TAC	<<locked>>	81%	43787	69%	**36	95%
Ramshot Wild Boar	<<locked>>	81%	42569	67%	**53	97%
Ramshot X-Terminator	<<locked>>	81%	47137	74%	**85	98%
ReloadSwiss RS 14	<<locked>>	81%	26818	42%	**63	100%
ReloadSwiss RS 40	<<locked>>	81%	48936	77%	**35	100%
[ReloadSwiss RS 50]*	<<locked>>	81%	35636	56%	**72	91%
ReloadSwiss RS 52	<<locked>>	81%	34954	55%	**48	97%
[ReloadSwiss RS 60]*	<<locked>>	81%	29138	46%	**07	93%
[ReloadSwiss RS 62]*	<<locked>>	85%	29950	47%	**20	90%
[ReloadSwiss RS 70]*	<<locked>>	88%	33591	53%	**05	90%
Rottweil R 901	<<locked>>	81%	44686	70%	**43	100%
Rottweil R 902	<<locked>>	81%	38624	61%	**28	98%
Rottweil R 903	<<locked>>	81%	31778	50%	**20	95%
[Rottweil R 907]*	<<locked>>	88%	38406	60%	**15	90%
[SNPE Vectan SP 11]*	<<locked>>	81%	33025	52%	**72	94%
SNPE Vectan SP 7	<<locked>>	81%	41814	66%	**10	95%
SNPE Vectan SP 9	<<locked>>	81%	39929	63%	**87	97%
SNPE Vectan Tubal 3000	<<locked>>	81%	42221	66%	**44	100%
SNPE Vectan Tubal 5000	<<locked>>	81%	34693	54%	**07	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	87%	34983	55%	**23	90%
[Shooters World Long Rifle]*	<<locked>>	83%	32053	50%	**74	90%
Shooters World Match Rifle	<<locked>>	81%	40263	63%	**10	99%
Shooters World Precision	<<locked>>	81%	36840	58%	**12	97%
Shooters World Tactical Rifle	<<locked>>	81%	51721	81%	**51	100%
Somchem S321	<<locked>>	81%	47239	74%	**28	99%
Somchem S335	<<locked>>	81%	41655	65%	**48	100%
Somchem S341	<<locked>>	81%	41408	65%	**10	97%
Somchem S355	<<locked>>	81%	32721	51%	**26	95%
[Somchem S365]*	<<locked>>	81%	23873	37%	**26	90%
Vihtavuori N130	<<locked>>	81%	47036	74%	**13	100%
Vihtavuori N133	<<locked>>	81%	39682	62%	**98	100%
Vihtavuori N135	<<locked>>	81%	31850	50%	**90	100%
Vihtavuori N140	<<locked>>	81%	37971	60%	**15	100%
Vihtavuori N150	<<locked>>	81%	28036	44%	**88	95%
[Vihtavuori N160]*	<<locked>>	82%	29602	46%	**51	90%
Vihtavuori N530	<<locked>>	81%	46006	72%	**95	99%
Vihtavuori N540	<<locked>>	81%	37869	59%	**38	99%
[Vihtavuori N550]*	<<locked>>	81%	29080	46%	**77	90%
[Vihtavuori N555]*	<<locked>>	91%	27557	43%	**80	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	28166	44%	**82	92%
Winchester 748	<<locked>>	81%	46253	72%	**44	100%
[Winchester 760]*	<<locked>>	86%	36767	58%	**71	90%
Winchester StaBALL Match	<<locked>>	81%	49226	77%	**84	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.