Load data for .308 Marlin Express + .308 | 166gr | Copper Bear

Recommended Powder(s): Accurate 2495, Alliant AR-Comp, Hodgdon H322, IMR 3031, Norma 202

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.308 \| 166gr \| Copper Bear
Manufacturer SKU:	CB308166
Bullet Weight:	166gr \| 10.8g
Bullet Diameter:	0.308" \| 7.82mm
Bullet Length:	<<locked>>
Caliber:	.308 Marlin Express load data
Case Length (l3):	1.910" \| 48.5mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	51.0 Grains of Water \| 3.31 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	47863 psi \| 3300 bar
LID:	LID_B12338_C397
Last updated:	2026-04-06
Recommended Twist Rate:	1:13 - 1:10

Load data for 140 loads in caliber .308 Marlin Express with .308 | 166gr | Copper Bear bullet and 70 powders such as Accurate 2495, Alliant AR-Comp, Hodgdon H322, IMR 3031, Norma 202. 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 "Dashboard " page to set the measure system (imperial vs. metric)
No data yet
C.O.L. (Inch)
C.O.L. (mm)
We recommend you limit powder range to relevant brands to speed up re-calculation of results
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.
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>>	93%	42902	90%	**88	94%
[ADI AR 2208]*	<<locked>>	96%	40944	86%	**23	93%
ADI AR 2219	<<locked>>	83%	42264	88%	**72	99%
ADI Benchmark 8208	<<locked>>	90%	42409	89%	**52	96%
Accurate 2015	<<locked>>	88%	42409	89%	**33	100%
[Accurate 2200]*	<<locked>>	90%	42902	90%	**29	92%
Accurate 2230	<<locked>>	86%	42279	88%	**36	95%
Accurate 2460	<<locked>>	86%	42496	89%	**56	97%
Accurate 2495 👍	<<locked>>	93%	42177	88%	**11	100%
Accurate 2520	<<locked>>	93%	42743	89%	**18	98%
Accurate 4064	<<locked>>	96%	38812	81%	**59	98%
Alliant AR-Comp 👍	<<locked>>	93%	43033	90%	**25	100%
[Alliant Power Pro 2000-MR]*	<<locked>>	95%	42801	89%	**31	92%
[Alliant Reloder- TS 15.5]*	<<locked>>	96%	38725	81%	**39	94%
Alliant Reloder-10x	<<locked>>	85%	41916	88%	**33	100%
[Alliant Reloder-15]*	<<locked>>	97%	42888	90%	**08	94%
Baschieri & Pellagri 106	<<locked>>	83%	42859	90%	**87	99%
[Baschieri & Pellagri 107]*	<<locked>>	93%	42250	88%	**79	92%
[Bofors RP3]*	<<locked>>	97%	37971	79%	**46	94%
Hodgdon BL-C2	<<locked>>	92%	41945	88%	**11	96%
Hodgdon Benchmark	<<locked>>	88%	42206	88%	**03	96%
[Hodgdon CFE223]*	<<locked>>	97%	42076	88%	**98	92%
Hodgdon H322 👍	<<locked>>	89%	42264	88%	**72	99%
Hodgdon H335	<<locked>>	84%	42627	89%	**88	98%
Hodgdon H4895	<<locked>>	93%	43018	90%	**95	95%
[Hodgdon VARGET]*	<<locked>>	96%	40306	84%	**10	92%
IMR 3031 👍	<<locked>>	97%	42322	88%	**34	100%
[IMR 4064]*	<<locked>>	97%	40176	84%	**06	93%
IMR 4198	<<locked>>	84%	42496	89%	**00	100%
IMR 4895	<<locked>>	96%	42859	90%	**21	95%
IMR 8208 XBR	<<locked>>	90%	42409	89%	**52	96%
Lovex D073.4	<<locked>>	86%	42844	90%	**49	97%
Lovex D073.5	<<locked>>	87%	42743	89%	**62	97%
Lovex D073.6	<<locked>>	95%	42743	89%	**18	98%
[Lovex S060]*	<<locked>>	91%	42699	89%	**03	94%
Lovex S062	<<locked>>	97%	42467	89%	**75	96%
Norma 201	<<locked>>	93%	42540	89%	**59	96%
Norma 202 👍	<<locked>>	93%	42032	88%	**75	98%
[Norma 203B]*	<<locked>>	97%	42032	88%	**98	94%
[Ramshot Big Game]*	<<locked>>	97%	42395	89%	**05	93%
[Ramshot Wild Boar]*	<<locked>>	92%	43047	90%	**95	94%
[Ramshot X-Terminator]*	<<locked>>	87%	42424	89%	**26	94%
ReloadSwiss RS 40	<<locked>>	87%	42975	90%	**62	97%
[ReloadSwiss RS 52]*	<<locked>>	95%	42569	89%	**51	93%
ReloadSwiss RS 60	<<locked>>	97%	37666	79%	**52	95%
Rottweil R 901	<<locked>>	90%	42844	90%	**46	98%
Rottweil R 902	<<locked>>	95%	42641	89%	**52	96%
[Rottweil R 903]*	<<locked>>	96%	35041	73%	**74	93%
SNPE Vectan SP 10	<<locked>>	83%	42859	90%	**75	98%
[SNPE Vectan SP 11]*	<<locked>>	97%	38841	81%	**43	92%
[SNPE Vectan SP 7]*	<<locked>>	92%	42047	88%	**43	91%
[SNPE Vectan SP 9]*	<<locked>>	94%	42598	89%	**75	94%
SNPE Vectan Tubal 3000	<<locked>>	91%	42148	88%	**87	98%
SNPE Vectan Tubal 5000	<<locked>>	97%	40930	86%	**87	99%
Shooters World Match Rifle	<<locked>>	95%	42743	89%	**18	98%
Shooters World Precision	<<locked>>	97%	42467	89%	**75	96%
Shooters World Tactical Rifle	<<locked>>	84%	42250	88%	**13	95%
Somchem S321	<<locked>>	88%	42090	88%	**75	96%
Somchem S335	<<locked>>	91%	42076	88%	**06	99%
[Somchem S341]*	<<locked>>	93%	42815	89%	**69	94%
[Somchem S355]*	<<locked>>	96%	37275	78%	**00	93%
Vihtavuori N130	<<locked>>	87%	42438	89%	**93	100%
Vihtavuori N133	<<locked>>	94%	42322	88%	**10	100%
Vihtavuori N135	<<locked>>	97%	35636	74%	**60	99%
Vihtavuori N140	<<locked>>	96%	43047	90%	**72	99%
[Vihtavuori N150]*	<<locked>>	97%	32242	67%	**72	93%
Vihtavuori N530	<<locked>>	88%	42061	88%	**62	96%
Vihtavuori N540	<<locked>>	96%	42279	88%	**82	98%
Winchester 748	<<locked>>	90%	42931	90%	**21	97%
Winchester StaBALL Match	<<locked>>	87%	43047	90%	**05	95%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	83%	31821	66%	**59	90%
[ADI AR 2208]*	<<locked>>	90%	34577	72%	**95	90%
ADI AR 2219	<<locked>>	81%	39262	82%	**16	99%
[ADI Benchmark 8208]*	<<locked>>	81%	32256	67%	**49	92%
Accurate 2015	<<locked>>	81%	34432	72%	**88	99%
[Accurate 2200]*	<<locked>>	86%	37971	79%	**38	90%
[Accurate 2230]*	<<locked>>	81%	35360	74%	**11	93%
Accurate 2460	<<locked>>	81%	35636	74%	**28	95%
Accurate 2495	<<locked>>	81%	29211	61%	**56	98%
[Accurate 2520]*	<<locked>>	81%	29341	61%	**46	94%
[Accurate 4064]*	<<locked>>	81%	24627	51%	**34	93%
Alliant AR-Comp	<<locked>>	81%	30066	63%	**72	100%
[Alliant Power Pro 2000-MR]*	<<locked>>	93%	39929	83%	**72	90%
[Alliant Reloder- TS 15.5]*	<<locked>>	87%	29631	62%	**33	90%
Alliant Reloder-10x	<<locked>>	81%	38087	80%	**64	100%
[Alliant Reloder-15]*	<<locked>>	89%	34403	72%	**38	90%
Baschieri & Pellagri 106	<<locked>>	81%	40132	84%	**41	99%
[Baschieri & Pellagri 107]*	<<locked>>	88%	36579	76%	**67	90%
[Bofors RP3]*	<<locked>>	88%	29008	61%	**42	90%
[Hodgdon BL-C2]*	<<locked>>	81%	29936	63%	**56	91%
[Hodgdon Benchmark]*	<<locked>>	81%	34737	73%	**62	94%
[Hodgdon CFE223]*	<<locked>>	94%	38566	81%	**29	90%
Hodgdon H322	<<locked>>	81%	33504	70%	**01	97%
Hodgdon H335	<<locked>>	81%	38653	81%	**13	98%
[Hodgdon H4895]*	<<locked>>	81%	30356	63%	**33	90%
[Hodgdon VARGET]*	<<locked>>	91%	34954	73%	**05	90%
IMR 3031	<<locked>>	81%	26905	56%	**90	95%
[IMR 4064]*	<<locked>>	91%	33649	70%	**75	90%
IMR 4198	<<locked>>	81%	39247	82%	**44	100%
[IMR 4895]*	<<locked>>	86%	31821	66%	**95	90%
[IMR 8208 XBR]*	<<locked>>	81%	32256	67%	**49	92%
Lovex D073.4	<<locked>>	81%	37072	77%	**47	95%
Lovex D073.5	<<locked>>	81%	34896	73%	**18	95%
[Lovex D073.6]*	<<locked>>	81%	27746	58%	**06	93%
[Lovex S060]*	<<locked>>	81%	31908	67%	**87	90%
[Lovex S062]*	<<locked>>	82%	27818	58%	**64	90%
[Norma 201]*	<<locked>>	81%	30400	64%	**06	92%
Norma 202	<<locked>>	81%	29602	62%	**23	95%
[Norma 203B]*	<<locked>>	88%	32010	67%	**95	90%
[Ramshot Big Game]*	<<locked>>	90%	34258	72%	**38	90%
[Ramshot Wild Boar]*	<<locked>>	82%	32314	68%	**78	90%
[Ramshot X-Terminator]*	<<locked>>	81%	34998	73%	**82	91%
ReloadSwiss RS 40	<<locked>>	81%	36027	75%	**34	96%
[ReloadSwiss RS 52]*	<<locked>>	90%	35984	75%	**16	91%
[ReloadSwiss RS 60]*	<<locked>>	90%	30560	64%	**75	90%
Rottweil R 901	<<locked>>	81%	33794	71%	**65	96%
[Rottweil R 902]*	<<locked>>	81%	28790	60%	**60	91%
[Rottweil R 903]*	<<locked>>	91%	30211	63%	**65	90%
SNPE Vectan SP 10	<<locked>>	81%	39682	83%	**20	98%
[SNPE Vectan SP 11]*	<<locked>>	93%	34505	72%	**47	90%
[SNPE Vectan SP 7]*	<<locked>>	89%	38986	81%	**87	90%
[SNPE Vectan SP 9]*	<<locked>>	85%	32851	69%	**78	90%
SNPE Vectan Tubal 3000	<<locked>>	81%	31923	67%	**90	95%
[SNPE Vectan Tubal 5000]*	<<locked>>	81%	26063	54%	**65	94%
[Shooters World Match Rifle]*	<<locked>>	81%	27746	58%	**06	93%
[Shooters World Precision]*	<<locked>>	82%	27818	58%	**64	90%
[Shooters World Tactical Rifle]*	<<locked>>	81%	38363	80%	**41	94%
[Somchem S321]*	<<locked>>	81%	33968	71%	**15	94%
Somchem S335	<<locked>>	81%	31589	66%	**03	96%
[Somchem S341]*	<<locked>>	84%	33054	69%	**72	90%
[Somchem S355]*	<<locked>>	90%	30530	64%	**52	90%
Vihtavuori N130	<<locked>>	81%	35389	74%	**72	99%
Vihtavuori N133	<<locked>>	81%	29472	62%	**57	97%
[Vihtavuori N135]*	<<locked>>	81%	23308	49%	**55	94%
[Vihtavuori N140]*	<<locked>>	81%	27717	58%	**57	94%
[Vihtavuori N150]*	<<locked>>	91%	27093	57%	**44	90%
[Vihtavuori N530]*	<<locked>>	81%	33518	70%	**88	93%
[Vihtavuori N540]*	<<locked>>	81%	27441	57%	**67	93%
[Winchester 748]*	<<locked>>	81%	32880	69%	**15	94%
[Winchester StaBALL Match]*	<<locked>>	81%	34403	72%	**34	92%

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