Load data for 8.6 mm Blackout + .338 | 300gr | Nosler Custom Competition

Recommended Powder(s): Accurate 2460, Somchem S321, Vihtavuori N530, Winchester 748, Winchester StaBALL Match

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.338 \| 300gr \| Nosler Custom Competition
Manufacturer SKU:	53515
Bullet Weight:	300gr \| 19.4g
Bullet Diameter:	0.338" \| 8.59mm
Bullet Length:	1.725" \| 43.8mm
Caliber:	8.6 mm Blackout load data
Case Length (l3):	1.685" \| 42.8mm
Cartridge Length (C.O.L.):	2.783" \| 70.7mm
Seated Depth:	0.627" \| 15.9mm
Shank Seated Depth:	0.489" \| 12.4mm
Case Capacity:	50.0 Grains of Water \| 3.25 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	63092 psi \| 4350 bar
LID:	LID_B4152_C1210
Last updated:	2025-02-02
Recommended Twist Rate:	1:11 - 1:9

Load data for 164 loads in caliber 8.6 mm Blackout with .338 | 300gr | Nosler Custom Competition bullet and 82 powders such as Accurate 2460, Somchem S321, Vihtavuori N530, Winchester 748, Winchester StaBALL Match. 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.

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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>>	97%	49719	79%	**13	99%
ADI AR 2207	<<locked>>	88%	55448	88%	**54	100%
ADI AR 2208	<<locked>>	96%	41684	66%	**95	96%
ADI AR 2219	<<locked>>	91%	55724	88%	**46	100%
Accurate 2015	<<locked>>	96%	55492	88%	**00	100%
Accurate 2200	<<locked>>	97%	54114	86%	**16	98%
Accurate 2230	<<locked>>	94%	55506	88%	**32	100%
Accurate 2460 👍	<<locked>>	95%	56434	89%	**52	100%
Accurate 2495	<<locked>>	96%	46862	74%	**90	100%
Accurate 2520	<<locked>>	97%	50183	80%	**29	100%
Accurate 4064	<<locked>>	96%	38609	61%	**08	100%
Alliant AR-Comp	<<locked>>	96%	49458	78%	**00	100%
Alliant Reloder- TS 15.5	<<locked>>	96%	38798	61%	**01	98%
Alliant Reloder-10x	<<locked>>	94%	56057	89%	**09	100%
Alliant Reloder-15	<<locked>>	97%	43540	69%	**60	97%
Alliant Reloder-17	<<locked>>	97%	35621	56%	**88	95%
Alliant Reloder-7	<<locked>>	88%	56536	90%	**64	100%
Baschieri & Pellagri 106	<<locked>>	91%	56028	89%	**70	100%
Baschieri & Pellagri 107	<<locked>>	96%	48298	77%	**06	97%
Hodgdon BL-C2	<<locked>>	96%	50024	79%	**49	99%
Hodgdon Benchmark	<<locked>>	97%	55898	89%	**09	100%
Hodgdon CFE BLK	<<locked>>	88%	56594	90%	**86	100%
Hodgdon CFE223	<<locked>>	96%	42511	67%	**64	96%
Hodgdon H322	<<locked>>	96%	55027	87%	**39	100%
Hodgdon H335	<<locked>>	91%	55376	88%	**55	100%
Hodgdon H380	<<locked>>	97%	41118	65%	**18	95%
Hodgdon H4198	<<locked>>	89%	55245	88%	**54	100%
[Hodgdon LVR]*	<<locked>>	97%	34200	54%	**29	91%
Hodgdon VARGET	<<locked>>	96%	41147	65%	**88	96%
IMR 3031	<<locked>>	97%	42960	68%	**60	100%
IMR 4064	<<locked>>	97%	40727	65%	**78	96%
[IMR 4166 Enduron]*	<<locked>>	96%	41408	66%	**45	92%
IMR 4198	<<locked>>	92%	55448	88%	**60	100%
IMR 4227	<<locked>>	83%	55956	89%	**04	100%
IMR 4895	<<locked>>	97%	44701	71%	**83	98%
IMR 8208 XBR	<<locked>>	97%	52489	83%	**16	100%
Lovex D073.4	<<locked>>	93%	56014	89%	**32	100%
Lovex D073.5	<<locked>>	95%	56434	89%	**52	100%
Lovex D073.6	<<locked>>	96%	46050	73%	**86	100%
Lovex S053	<<locked>>	84%	56565	90%	**85	100%
Lovex S060	<<locked>>	96%	50372	80%	**54	99%
Lovex S062	<<locked>>	96%	42264	67%	**18	99%
Norma 200	<<locked>>	89%	55898	89%	**90	100%
Norma 201	<<locked>>	96%	47398	75%	**64	99%
Norma 202	<<locked>>	96%	47050	75%	**73	100%
Norma 203B	<<locked>>	97%	42685	68%	**54	98%
Ramshot Big Game	<<locked>>	97%	42786	68%	**60	97%
Ramshot TAC	<<locked>>	97%	53345	85%	**23	97%
Ramshot Wild Boar	<<locked>>	97%	51605	82%	**39	99%
Ramshot X-Terminator	<<locked>>	96%	56710	90%	**42	99%
ReloadSwiss RS 40	<<locked>>	94%	55738	88%	**42	100%
[ReloadSwiss RS 50]*	<<locked>>	96%	41756	66%	**95	93%
ReloadSwiss RS 52	<<locked>>	96%	40654	64%	**57	99%
ReloadSwiss RS 60	<<locked>>	97%	34882	55%	**75	96%
Rottweil R 901	<<locked>>	97%	52315	83%	**93	100%
Rottweil R 902	<<locked>>	97%	45353	72%	**31	99%
Rottweil R 903	<<locked>>	97%	36434	58%	**75	97%
SNPE Vectan BA6 1/2	<<locked>>	88%	56608	90%	**70	100%
SNPE Vectan SP 10	<<locked>>	91%	55332	88%	**49	100%
SNPE Vectan SP 11	<<locked>>	96%	38725	61%	**08	96%
SNPE Vectan SP 7	<<locked>>	97%	50502	80%	**03	97%
SNPE Vectan SP 9	<<locked>>	96%	47384	75%	**83	98%
SNPE Vectan Tubal 3000	<<locked>>	96%	51126	81%	**41	100%
SNPE Vectan Tubal 5000	<<locked>>	96%	41249	65%	**45	100%
Shooters World Match Rifle	<<locked>>	96%	46050	73%	**86	100%
Shooters World Precision	<<locked>>	96%	42264	67%	**18	99%
Shooters World Tactical Rifle	<<locked>>	92%	56231	89%	**19	100%
Somchem S321 👍	<<locked>>	96%	56608	90%	**78	100%
Somchem S335	<<locked>>	96%	49037	78%	**37	100%
Somchem S341	<<locked>>	96%	49298	78%	**93	98%
Somchem S355	<<locked>>	96%	37202	59%	**72	97%
Vihtavuori N120	<<locked>>	90%	55651	88%	**14	100%
Vihtavuori N130	<<locked>>	97%	56579	90%	**73	100%
Vihtavuori N133	<<locked>>	96%	46311	73%	**91	100%
Vihtavuori N135	<<locked>>	97%	35824	57%	**32	100%
Vihtavuori N140	<<locked>>	97%	44947	71%	**31	100%
[Vihtavuori N160]*	<<locked>>	96%	33678	53%	**06	92%
Vihtavuori N530 👍	<<locked>>	97%	56173	89%	**59	100%
Vihtavuori N540	<<locked>>	97%	44251	70%	**50	100%
[Vihtavuori N550]*	<<locked>>	97%	33460	53%	**45	92%
Winchester 748 👍	<<locked>>	96%	55317	88%	**91	100%
Winchester StaBALL Match 👍	<<locked>>	94%	55724	88%	**88	100%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	82%	31328	50%	**54	94%
ADI AR 2207	<<locked>>	81%	44831	71%	**52	100%
[ADI AR 2208]*	<<locked>>	88%	32430	51%	**54	93%
ADI AR 2219	<<locked>>	81%	40292	64%	**78	100%
Accurate 2015	<<locked>>	81%	34519	55%	**67	100%
[Accurate 2200]*	<<locked>>	81%	32924	52%	**44	92%
Accurate 2230	<<locked>>	81%	35360	56%	**99	96%
Accurate 2460	<<locked>>	81%	35491	56%	**09	98%
Accurate 2495	<<locked>>	81%	28529	45%	**44	100%
Accurate 2520	<<locked>>	81%	29254	46%	**54	97%
Accurate 4064	<<locked>>	86%	27978	44%	**40	98%
Alliant AR-Comp	<<locked>>	81%	30298	48%	**63	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	87%	29182	46%	**44	94%
Alliant Reloder-10x	<<locked>>	81%	38014	60%	**16	100%
[Alliant Reloder-15]*	<<locked>>	85%	30023	48%	**50	93%
[Alliant Reloder-17]*	<<locked>>	90%	28485	45%	**50	91%
Alliant Reloder-7	<<locked>>	81%	46180	73%	**65	100%
Baschieri & Pellagri 106	<<locked>>	81%	40147	64%	**06	100%
[Baschieri & Pellagri 107]*	<<locked>>	82%	30400	48%	**44	91%
Hodgdon BL-C2	<<locked>>	81%	29863	47%	**67	95%
Hodgdon Benchmark	<<locked>>	81%	34838	55%	**57	97%
Hodgdon CFE BLK	<<locked>>	81%	45295	72%	**68	99%
[Hodgdon CFE223]*	<<locked>>	85%	29805	47%	**54	91%
Hodgdon H322	<<locked>>	81%	34171	54%	**93	99%
Hodgdon H335	<<locked>>	81%	39146	62%	**75	100%
[Hodgdon H380]*	<<locked>>	87%	30589	48%	**54	91%
Hodgdon H4198	<<locked>>	81%	43729	69%	**32	100%
[Hodgdon LVR]*	<<locked>>	94%	31488	50%	**80	90%
[Hodgdon VARGET]*	<<locked>>	88%	31836	50%	**47	93%
IMR 3031	<<locked>>	84%	29080	46%	**54	99%
[IMR 4064]*	<<locked>>	89%	32227	51%	**50	94%
[IMR 4166 Enduron]*	<<locked>>	93%	38101	60%	**99	90%
IMR 4198	<<locked>>	81%	39914	63%	**03	100%
IMR 4227	<<locked>>	81%	52852	84%	**78	100%
[IMR 4895]*	<<locked>>	83%	29037	46%	**44	93%
IMR 8208 XBR	<<locked>>	81%	32387	51%	**54	96%
Lovex D073.4	<<locked>>	81%	36854	58%	**19	98%
Lovex D073.5	<<locked>>	81%	35491	56%	**09	98%
Lovex D073.6	<<locked>>	83%	29254	46%	**54	97%
Lovex S053	<<locked>>	81%	51808	82%	**42	100%
Lovex S060	<<locked>>	84%	34969	55%	**54	95%
Lovex S062	<<locked>>	86%	30734	49%	**44	96%
Norma 200	<<locked>>	81%	43105	68%	**62	100%
Norma 201	<<locked>>	83%	31502	50%	**44	96%
Norma 202	<<locked>>	82%	30385	48%	**44	98%
[Norma 203B]*	<<locked>>	85%	29457	47%	**44	93%
[Ramshot Big Game]*	<<locked>>	85%	29907	47%	**54	92%
[Ramshot TAC]*	<<locked>>	81%	32547	52%	**44	91%
[Ramshot Wild Boar]*	<<locked>>	81%	30951	49%	**57	94%
Ramshot X-Terminator	<<locked>>	81%	35505	56%	**86	95%
ReloadSwiss RS 40	<<locked>>	81%	36230	57%	**13	98%
[ReloadSwiss RS 50]*	<<locked>>	91%	35172	56%	**99	90%
ReloadSwiss RS 52	<<locked>>	85%	28181	45%	**47	95%
[ReloadSwiss RS 60]*	<<locked>>	91%	28718	46%	**57	92%
Rottweil R 901	<<locked>>	81%	33098	52%	**50	98%
Rottweil R 902	<<locked>>	85%	32082	51%	**47	96%
[Rottweil R 903]*	<<locked>>	89%	28514	45%	**44	94%
SNPE Vectan BA6 1/2	<<locked>>	86%	53563	85%	**44	100%
SNPE Vectan SP 10	<<locked>>	81%	40480	64%	**85	100%
[SNPE Vectan SP 11]*	<<locked>>	87%	29356	47%	**47	92%
[SNPE Vectan SP 7]*	<<locked>>	83%	31691	50%	**50	91%
[SNPE Vectan SP 9]*	<<locked>>	83%	31111	49%	**50	94%
SNPE Vectan Tubal 3000	<<locked>>	84%	34809	55%	**44	99%
SNPE Vectan Tubal 5000	<<locked>>	90%	33605	53%	**44	99%
Shooters World Match Rifle	<<locked>>	83%	29254	46%	**54	97%
Shooters World Precision	<<locked>>	86%	30734	49%	**44	96%
Shooters World Tactical Rifle	<<locked>>	81%	38406	61%	**16	97%
Somchem S321	<<locked>>	81%	33895	54%	**03	97%
Somchem S335	<<locked>>	84%	33968	54%	**50	99%
[Somchem S341]*	<<locked>>	83%	31473	50%	**50	94%
[Somchem S355]*	<<locked>>	89%	29501	47%	**44	94%
Vihtavuori N120	<<locked>>	81%	42714	68%	**93	100%
Vihtavuori N130	<<locked>>	81%	35549	56%	**47	100%
Vihtavuori N133	<<locked>>	86%	34505	55%	**50	100%
Vihtavuori N135	<<locked>>	90%	29965	47%	**44	99%
Vihtavuori N140	<<locked>>	86%	31749	50%	**54	99%
[Vihtavuori N160]*	<<locked>>	93%	30966	49%	**57	91%
Vihtavuori N530	<<locked>>	81%	33924	54%	**86	97%
Vihtavuori N540	<<locked>>	85%	30719	49%	**57	98%
[Vihtavuori N550]*	<<locked>>	92%	29182	46%	**63	90%
Winchester 748	<<locked>>	81%	32924	52%	**09	97%
Winchester StaBALL Match	<<locked>>	81%	35273	56%	**36	96%

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