Load data for .338 Marlin Express + .338 | 185gr | Hornady ECX

Recommended Powder(s): Accurate 2495, Alliant AR-Comp

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.338 \| 185gr \| Hornady ECX
Manufacturer SKU:	33272
Bullet Weight:	185gr \| 12.0g
Bullet Diameter:	0.338" \| 8.59mm
Bullet Length:	1.266" \| 32.2mm
Caliber:	.338 Marlin Express load data
Case Length (l3):	1.880" \| 47.8mm
Cartridge Length (C.O.L.):	2.561" \| 65.0mm
Seated Depth:	0.585" \| 14.9mm
Shank Seated Depth:	0.585" \| 14.9mm
Case Capacity:	61.0 Grains of Water \| 3.96 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	46412 psi \| 3200 bar
LID:	LID_B12167_C456
Last updated:	2026-01-20

Load data for 102 loads in caliber .338 Marlin Express with .338 | 185gr | Hornady ECX bullet and 51 powders such as Accurate 2495, Alliant AR-Comp. 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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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>>	96%	41104	89%	**41	93%
ADI AR 2219	<<locked>>	87%	41452	89%	**51	98%
Accurate 2015	<<locked>>	92%	41669	90%	**21	100%
[Accurate 2230]*	<<locked>>	90%	41553	90%	**08	94%
Accurate 2460	<<locked>>	90%	41220	89%	**28	96%
Accurate 2495 👍	<<locked>>	97%	39305	85%	**77	99%
Accurate 2520	<<locked>>	96%	41553	90%	**90	97%
Accurate 4064	<<locked>>	97%	32416	70%	**29	95%
Alliant AR-Comp 👍	<<locked>>	96%	40901	88%	**87	100%
Alliant Reloder-10x	<<locked>>	88%	41060	88%	**21	100%
Baschieri & Pellagri 106	<<locked>>	86%	41176	89%	**43	98%
[Hodgdon BL-C2]*	<<locked>>	96%	41669	90%	**93	94%
Hodgdon Benchmark	<<locked>>	91%	41220	89%	**72	95%
Hodgdon H322	<<locked>>	92%	40944	88%	**41	98%
Hodgdon H335	<<locked>>	87%	41582	90%	**57	97%
Hodgdon H4198	<<locked>>	83%	41423	89%	**36	98%
IMR 3031	<<locked>>	97%	36709	79%	**21	98%
IMR 4198	<<locked>>	87%	41539	89%	**82	100%
[IMR 8208 XBR]*	<<locked>>	94%	41278	89%	**21	94%
Lovex D073.4	<<locked>>	89%	41640	90%	**18	96%
Lovex D073.5	<<locked>>	91%	41568	90%	**34	96%
Lovex D073.6	<<locked>>	97%	38856	84%	**41	96%
[Lovex S060]*	<<locked>>	94%	41437	89%	**65	93%
[Lovex S062]*	<<locked>>	97%	36767	79%	**56	93%
Norma 200	<<locked>>	85%	41394	89%	**08	100%
Norma 201	<<locked>>	97%	41336	89%	**31	95%
Norma 202	<<locked>>	97%	40915	88%	**44	97%
[Ramshot Wild Boar]*	<<locked>>	95%	41713	90%	**54	92%
[Ramshot X-Terminator]*	<<locked>>	90%	41321	89%	**88	92%
ReloadSwiss RS 40	<<locked>>	90%	41756	90%	**31	96%
Rottweil R 901	<<locked>>	94%	41510	89%	**21	97%
[Rottweil R 902]*	<<locked>>	96%	38580	83%	**65	94%
SNPE Vectan SP 10	<<locked>>	86%	41336	89%	**41	97%
[SNPE Vectan SP 9]*	<<locked>>	97%	41031	88%	**38	92%
SNPE Vectan Tubal 3000	<<locked>>	95%	41756	90%	**69	97%
SNPE Vectan Tubal 5000	<<locked>>	97%	35911	77%	**80	97%
Shooters World Match Rifle	<<locked>>	97%	38856	84%	**41	96%
[Shooters World Precision]*	<<locked>>	97%	36767	79%	**56	93%
[Shooters World Tactical Rifle]*	<<locked>>	88%	41742	90%	**88	94%
Somchem S321	<<locked>>	92%	41089	89%	**48	95%
Somchem S335	<<locked>>	95%	41379	89%	**85	98%
[Somchem S341]*	<<locked>>	95%	41205	89%	**15	92%
Vihtavuori N120	<<locked>>	85%	41075	89%	**36	100%
Vihtavuori N130	<<locked>>	91%	41379	89%	**75	100%
Vihtavuori N133	<<locked>>	97%	40698	88%	**75	99%
Vihtavuori N135	<<locked>>	96%	29936	64%	**31	96%
Vihtavuori N140	<<locked>>	97%	38522	83%	**79	97%
Vihtavuori N530	<<locked>>	92%	41307	89%	**31	95%
Vihtavuori N540	<<locked>>	96%	37681	81%	**92	96%
Winchester 748	<<locked>>	92%	41176	89%	**74	95%
[Winchester StaBALL Match]*	<<locked>>	90%	41437	89%	**61	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	91%	35288	76%	**23	90%
ADI AR 2219	<<locked>>	81%	34577	74%	**13	96%
Accurate 2015	<<locked>>	81%	29501	64%	**78	97%
[Accurate 2230]*	<<locked>>	83%	32285	70%	**28	90%
[Accurate 2460]*	<<locked>>	81%	29994	65%	**98	91%
[Accurate 2495]*	<<locked>>	81%	23134	50%	**03	94%
[Accurate 2520]*	<<locked>>	82%	25860	56%	**42	90%
[Accurate 4064]*	<<locked>>	85%	22539	49%	**73	90%
Alliant AR-Comp	<<locked>>	81%	26107	56%	**56	98%
Alliant Reloder-10x	<<locked>>	81%	32634	70%	**57	99%
Baschieri & Pellagri 106	<<locked>>	81%	35404	76%	**41	97%
[Hodgdon BL-C2]*	<<locked>>	87%	31357	68%	**74	90%
[Hodgdon Benchmark]*	<<locked>>	81%	30487	66%	**49	91%
[Hodgdon H322]*	<<locked>>	81%	29095	63%	**85	94%
Hodgdon H335	<<locked>>	81%	33547	72%	**97	95%
Hodgdon H4198	<<locked>>	81%	38624	83%	**87	97%
[IMR 3031]*	<<locked>>	81%	22945	49%	**51	91%
IMR 4198	<<locked>>	81%	34606	75%	**51	100%
[IMR 8208 XBR]*	<<locked>>	84%	31053	67%	**05	90%
[Lovex D073.4]*	<<locked>>	81%	31473	68%	**18	92%
[Lovex D073.5]*	<<locked>>	81%	29704	64%	**92	91%
[Lovex D073.6]*	<<locked>>	84%	25860	56%	**42	90%
[Lovex S060]*	<<locked>>	88%	34940	75%	**38	90%
[Lovex S062]*	<<locked>>	91%	30661	66%	**24	90%
Norma 200	<<locked>>	81%	36970	80%	**26	100%
[Norma 201]*	<<locked>>	87%	30501	66%	**95	90%
[Norma 202]*	<<locked>>	81%	25106	54%	**87	91%
[Ramshot Wild Boar]*	<<locked>>	90%	36071	78%	**39	90%
[Ramshot X-Terminator]*	<<locked>>	86%	36521	79%	**93	90%
[ReloadSwiss RS 40]*	<<locked>>	81%	31285	67%	**21	93%
[Rottweil R 901]*	<<locked>>	81%	28587	62%	**42	92%
[Rottweil R 902]*	<<locked>>	89%	30879	67%	**98	90%
SNPE Vectan SP 10	<<locked>>	81%	34621	75%	**13	95%
[SNPE Vectan SP 9]*	<<locked>>	92%	35462	76%	**23	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	27717	60%	**73	92%
[SNPE Vectan Tubal 5000]*	<<locked>>	81%	22626	49%	**46	90%
[Shooters World Match Rifle]*	<<locked>>	84%	25860	56%	**42	90%
[Shooters World Precision]*	<<locked>>	91%	30661	66%	**24	90%
[Shooters World Tactical Rifle]*	<<locked>>	81%	33257	72%	**18	91%
[Somchem S321]*	<<locked>>	82%	30240	65%	**15	90%
[Somchem S335]*	<<locked>>	81%	26731	58%	**77	93%
[Somchem S341]*	<<locked>>	92%	36260	78%	**23	90%
Vihtavuori N120	<<locked>>	81%	36637	79%	**64	100%
Vihtavuori N130	<<locked>>	81%	30937	67%	**72	98%
Vihtavuori N133	<<locked>>	81%	25599	55%	**44	95%
[Vihtavuori N135]*	<<locked>>	83%	20639	44%	**55	90%
[Vihtavuori N140]*	<<locked>>	82%	24497	53%	**47	91%
[Vihtavuori N530]*	<<locked>>	82%	30153	65%	**98	90%
[Vihtavuori N540]*	<<locked>>	83%	25092	54%	**83	90%
[Winchester 748]*	<<locked>>	82%	29776	64%	**18	90%
[Winchester StaBALL Match]*	<<locked>>	85%	34360	74%	**13	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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