Load data for .338 Marlin Express + .338 | 185gr | Barnes MRX BT

Recommended Powder(s): Accurate 2015, Accurate 2495, Alliant AR-Comp, Alliant Reloder-10x

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.338 \| 185gr \| Barnes MRX BT
Manufacturer SKU:	33863
Bullet Weight:	185gr \| 12.0g
Bullet Diameter:	0.338" \| 8.59mm
Bullet Length:	1.350" \| 34.3mm
Caliber:	.338 Marlin Express load data
Case Length (l3):	1.880" \| 47.8mm
Cartridge Length (C.O.L.):	2.561" \| 65.0mm
Seated Depth:	0.669" \| 17.0mm
Shank Seated Depth:	0.544" \| 13.8mm
Case Capacity:	61.0 Grains of Water \| 3.96 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	46412 psi \| 3200 bar
LID:	LID_B664_C456
Last updated:	2025-01-01
Recommended Twist Rate:	1:13 - 1:11

Load data for 104 loads in caliber .338 Marlin Express with .338 | 185gr | Barnes MRX BT bullet and 52 powders such as Accurate 2015, Accurate 2495, Alliant AR-Comp, Alliant Reloder-10x. 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%	41133	89%	**25	92%
ADI AR 2207	<<locked>>	84%	41742	90%	**75	100%
ADI AR 2219	<<locked>>	88%	41713	90%	**34	98%
Accurate 2015 👍	<<locked>>	93%	41684	90%	**05	99%
[Accurate 2230]*	<<locked>>	91%	41582	90%	**92	93%
Accurate 2460	<<locked>>	92%	41582	90%	**18	95%
Accurate 2495 👍	<<locked>>	96%	36854	79%	**18	99%
Accurate 2520	<<locked>>	97%	40161	87%	**48	96%
[Accurate 4064]*	<<locked>>	96%	30443	66%	**74	94%
Alliant AR-Comp 👍	<<locked>>	97%	40785	88%	**67	100%
Alliant Reloder-10x 👍	<<locked>>	90%	40988	88%	**05	100%
Baschieri & Pellagri 106	<<locked>>	87%	41481	89%	**36	98%
[Hodgdon BL-C2]*	<<locked>>	96%	40959	88%	**61	94%
Hodgdon Benchmark	<<locked>>	92%	41205	89%	**56	95%
[Hodgdon CFE BLK]*	<<locked>>	83%	41394	89%	**16	94%
Hodgdon H322	<<locked>>	93%	41176	89%	**25	98%
Hodgdon H335	<<locked>>	88%	41597	90%	**38	97%
Hodgdon H4198	<<locked>>	84%	41350	89%	**20	98%
IMR 3031	<<locked>>	97%	35215	76%	**69	97%
IMR 4198	<<locked>>	88%	41582	90%	**62	100%
[IMR 8208 XBR]*	<<locked>>	95%	41205	89%	**02	94%
Lovex D073.4	<<locked>>	90%	41191	89%	**92	95%
Lovex D073.5	<<locked>>	92%	41002	88%	**08	95%
Lovex D073.6	<<locked>>	96%	36898	79%	**88	95%
[Lovex S060]*	<<locked>>	95%	41553	90%	**46	92%
[Lovex S062]*	<<locked>>	97%	34925	75%	**03	92%
Norma 200	<<locked>>	86%	41626	90%	**95	100%
[Norma 201]*	<<locked>>	96%	39595	85%	**72	94%
Norma 202	<<locked>>	97%	39479	85%	**05	97%
[Ramshot Wild Boar]*	<<locked>>	96%	41597	90%	**28	92%
[Ramshot X-Terminator]*	<<locked>>	91%	40973	88%	**62	92%
ReloadSwiss RS 40	<<locked>>	90%	40741	88%	**02	96%
Rottweil R 901	<<locked>>	95%	41379	89%	**98	97%
[Rottweil R 902]*	<<locked>>	97%	37710	81%	**33	93%
SNPE Vectan SP 10	<<locked>>	88%	41481	89%	**31	97%
[SNPE Vectan SP 9]*	<<locked>>	97%	40059	86%	**95	91%
SNPE Vectan Tubal 3000	<<locked>>	95%	40915	88%	**33	97%
SNPE Vectan Tubal 5000	<<locked>>	96%	34345	74%	**28	96%
Shooters World Match Rifle	<<locked>>	96%	36898	79%	**88	95%
[Shooters World Precision]*	<<locked>>	97%	34925	75%	**03	92%
[Shooters World Tactical Rifle]*	<<locked>>	89%	41524	89%	**65	93%
[Somchem S321]*	<<locked>>	93%	41597	90%	**34	94%
Somchem S335	<<locked>>	96%	41147	89%	**65	98%
Vihtavuori N120	<<locked>>	86%	41031	88%	**20	100%
Vihtavuori N130	<<locked>>	92%	41437	89%	**56	100%
Vihtavuori N133	<<locked>>	97%	39407	85%	**33	99%
Vihtavuori N135	<<locked>>	97%	29544	64%	**01	96%
Vihtavuori N140	<<locked>>	97%	36985	80%	**33	96%
[Vihtavuori N530]*	<<locked>>	93%	41220	89%	**18	94%
Vihtavuori N540	<<locked>>	97%	36883	79%	**59	96%
Winchester 748	<<locked>>	94%	41742	90%	**61	95%
[Winchester StaBALL Match]*	<<locked>>	91%	41437	89%	**38	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	93%	35882	77%	**20	90%
ADI AR 2207	<<locked>>	81%	37884	82%	**10	100%
ADI AR 2219	<<locked>>	81%	33025	71%	**60	96%
Accurate 2015	<<locked>>	81%	28413	61%	**39	96%
[Accurate 2230]*	<<locked>>	85%	33591	72%	**44	90%
[Accurate 2460]*	<<locked>>	81%	28790	62%	**56	90%
[Accurate 2495]*	<<locked>>	81%	21944	47%	**54	93%
[Accurate 2520]*	<<locked>>	85%	27021	58%	**59	90%
[Accurate 4064]*	<<locked>>	88%	23061	50%	**80	90%
Alliant AR-Comp	<<locked>>	81%	25135	54%	**10	97%
Alliant Reloder-10x	<<locked>>	81%	31575	68%	**21	98%
Baschieri & Pellagri 106	<<locked>>	81%	34040	73%	**98	97%
[Hodgdon BL-C2]*	<<locked>>	90%	32692	70%	**90	90%
[Hodgdon Benchmark]*	<<locked>>	82%	30095	65%	**23	90%
[Hodgdon CFE BLK]*	<<locked>>	81%	38696	83%	**64	93%
[Hodgdon H322]*	<<locked>>	81%	28500	61%	**49	93%
[Hodgdon H335]*	<<locked>>	81%	32401	70%	**51	94%
Hodgdon H4198	<<locked>>	81%	37797	81%	**54	97%
[IMR 3031]*	<<locked>>	81%	22350	48%	**11	90%
IMR 4198	<<locked>>	81%	33620	72%	**15	99%
[IMR 8208 XBR]*	<<locked>>	87%	32213	69%	**15	90%
[Lovex D073.4]*	<<locked>>	81%	30211	65%	**72	91%
[Lovex D073.5]*	<<locked>>	82%	28950	62%	**59	90%
[Lovex D073.6]*	<<locked>>	87%	26760	58%	**49	90%
[Lovex S060]*	<<locked>>	91%	36274	78%	**47	90%
[Lovex S062]*	<<locked>>	93%	31009	67%	**18	90%
Norma 200	<<locked>>	81%	35404	76%	**87	99%
[Norma 201]*	<<locked>>	89%	31444	68%	**05	90%
[Norma 202]*	<<locked>>	82%	24889	54%	**64	90%
[Ramshot Wild Boar]*	<<locked>>	92%	37202	80%	**46	90%
[Ramshot X-Terminator]*	<<locked>>	88%	36738	79%	**83	90%
[ReloadSwiss RS 40]*	<<locked>>	81%	30226	65%	**75	92%
[Rottweil R 901]*	<<locked>>	81%	27398	59%	**93	91%
[Rottweil R 902]*	<<locked>>	91%	31415	68%	**95	90%
[SNPE Vectan SP 10]*	<<locked>>	81%	33344	72%	**70	94%
[SNPE Vectan SP 9]*	<<locked>>	94%	36695	79%	**29	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	26731	58%	**34	91%
[SNPE Vectan Tubal 5000]*	<<locked>>	83%	23264	50%	**52	90%
[Shooters World Match Rifle]*	<<locked>>	87%	26760	58%	**49	90%
[Shooters World Precision]*	<<locked>>	93%	31009	67%	**18	90%
[Shooters World Tactical Rifle]*	<<locked>>	82%	33112	71%	**98	90%
[Somchem S321]*	<<locked>>	84%	30995	67%	**18	90%
[Somchem S335]*	<<locked>>	81%	25759	55%	**34	92%
Vihtavuori N120	<<locked>>	81%	35534	77%	**31	100%
Vihtavuori N130	<<locked>>	81%	29965	65%	**29	97%
[Vihtavuori N133]*	<<locked>>	81%	24889	54%	**08	94%
[Vihtavuori N135]*	<<locked>>	85%	21002	45%	**49	90%
[Vihtavuori N140]*	<<locked>>	83%	24569	53%	**34	90%
[Vihtavuori N530]*	<<locked>>	85%	31778	68%	**21	90%
[Vihtavuori N540]*	<<locked>>	85%	25788	56%	**87	90%
[Winchester 748]*	<<locked>>	84%	30516	66%	**18	90%
[Winchester StaBALL Match]*	<<locked>>	87%	35520	77%	**16	90%

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.

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