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Load data for .33 Win. + .338 | 231gr | Lapua Naturalis

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Recommended Powder(s): Accurate 2520, Accurate 4064, IMR 3031, Norma 202, Vihtavuori N540

.33 Win. + .338 | 231gr | Lapua Naturalis

Load Specifications

Bullet:
.338 | 231gr | Lapua Naturalis
Manufacturer SKU:
NPL8020 | N508
Bullet Weight:
231gr | 15.0g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.350" | 34.3mm
Caliber:
.33 Win.
Case Length (l3):
2.104" | 53.4mm
Cartridge Length (C.O.L.):
2.753" | 69.9mm
Seated Depth:
0.701" | 17.8mm
Shank Seated Depth:
0.701" | 17.8mm
Case Capacity:
63.0 Grains of Water | 4.09 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
44237 psi | 3050 bar
LID:
LID_B3196_C441

>> Use the Personalized Load Calculator further below to adjust input parameters. 

Load data for 112 loads in caliber .33 Win. with .338 | 231gr | Lapua Naturalis bullet and 56 powders such as Accurate 2520, Accurate 4064, IMR 3031, Norma 202, Vihtavuori N540. 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".

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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>>
87%
39117
88%
**42
95%
[ADI AR 2208]*
<<locked>>
92%
39117
88%
**26
94%
[Accurate 2200]*
<<locked>>
85%
39349
89%
**03
93%
Accurate 2495
<<locked>>
88%
39407
89%
**75
100%
Accurate 2520 👍
<<locked>>
87%
39508
89%
**82
99%
Accurate 4064 👍
<<locked>>
93%
39537
89%
**85
99%
Alliant AR-Comp
<<locked>>
87%
39711
90%
**75
100%
Alliant Reloder- TS 15.5
<<locked>>
94%
39726
90%
**85
97%
Alliant Reloder-15
<<locked>>
91%
39653
90%
**75
95%
Alliant Reloder-17
<<locked>>
97%
38174
86%
**98
95%
[Baschieri & Pellagri 107]*
<<locked>>
87%
38928
88%
**52
94%
Hodgdon BL-C2
<<locked>>
87%
39494
89%
**95
97%
[Hodgdon CFE223]*
<<locked>>
92%
39044
88%
**82
93%
Hodgdon H322
<<locked>>
84%
39755
90%
**49
100%
[Hodgdon H380]*
<<locked>>
93%
39479
89%
**62
93%
[Hodgdon Hybrid 100V]*
<<locked>>
97%
31198
71%
**05
92%
[Hodgdon VARGET]*
<<locked>>
92%
39117
88%
**26
94%
IMR 3031 👍
<<locked>>
91%
39088
88%
**92
100%
IMR 4064
<<locked>>
93%
39001
88%
**23
95%
IMR 4895
<<locked>>
90%
39392
89%
**85
96%
IMR 8208 XBR
<<locked>>
85%
39653
90%
**29
97%
Lovex D073.6
<<locked>>
89%
39117
88%
**72
98%
Lovex S060
<<locked>>
85%
39320
89%
**77
95%
Lovex S062
<<locked>>
91%
39537
89%
**46
97%
Norma 201
<<locked>>
88%
39595
90%
**29
97%
Norma 202 👍
<<locked>>
88%
39784
90%
**59
99%
Norma 203B
<<locked>>
92%
39726
90%
**82
96%
Ramshot Big Game
<<locked>>
92%
39798
90%
**92
95%
[Ramshot TAC]*
<<locked>>
85%
39392
89%
**16
92%
Ramshot Wild Boar
<<locked>>
86%
39755
90%
**69
95%
ReloadSwiss RS 52
<<locked>>
93%
39015
88%
**08
97%
ReloadSwiss RS 60
<<locked>>
97%
37362
84%
**88
95%
Rottweil R 901
<<locked>>
84%
39813
90%
**16
99%
Rottweil R 902
<<locked>>
89%
39581
89%
**23
97%
Rottweil R 903
<<locked>>
96%
39146
88%
**82
96%
SNPE Vectan SP 11
<<locked>>
95%
39450
89%
**88
95%
[SNPE Vectan SP 7]*
<<locked>>
87%
39595
90%
**36
93%
SNPE Vectan SP 9
<<locked>>
88%
39682
90%
**56
95%
SNPE Vectan Tubal 3000
<<locked>>
86%
39740
90%
**70
99%
SNPE Vectan Tubal 5000
<<locked>>
92%
39233
89%
**83
99%
Shooters World Match Rifle
<<locked>>
89%
39117
88%
**72
98%
Shooters World Precision
<<locked>>
91%
39537
89%
**46
97%
Somchem S335
<<locked>>
86%
39117
88%
**83
99%
Somchem S341
<<locked>>
87%
39769
90%
**46
95%
Somchem S355
<<locked>>
95%
39682
90%
**72
96%
[Somchem S365]*
<<locked>>
97%
30023
68%
**34
93%
Vihtavuori N133
<<locked>>
88%
39291
89%
**80
100%
Vihtavuori N135
<<locked>>
97%
39262
89%
**49
100%
Vihtavuori N140
<<locked>>
90%
39363
89%
**29
99%
Vihtavuori N150
<<locked>>
97%
35186
80%
**77
96%
[Vihtavuori N160]*
<<locked>>
96%
36883
83%
**10
92%
Vihtavuori N530
<<locked>>
84%
39769
90%
**42
97%
Vihtavuori N540 👍
<<locked>>
90%
39378
89%
**56
99%
[Vihtavuori N550]*
<<locked>>
97%
36782
83%
**59
92%
[Winchester 6.5 StaBALL]*
<<locked>>
97%
36811
83%
**83
94%
Winchester 748
<<locked>>
84%
39711
90%
**88
98%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2206H]*
<<locked>>
81%
33127
75%
**28
93%
[ADI AR 2208]*
<<locked>>
82%
29849
67%
**36
90%
[Accurate 2200]*
<<locked>>
81%
35360
80%
**31
92%
Accurate 2495
<<locked>>
81%
32314
73%
**47
100%
Accurate 2520
<<locked>>
81%
32430
73%
**51
97%
Accurate 4064
<<locked>>
81%
27209
62%
**42
96%
Alliant AR-Comp
<<locked>>
81%
33185
75%
**64
100%
[Alliant Reloder- TS 15.5]*
<<locked>>
81%
27064
61%
**19
91%
[Alliant Reloder-15]*
<<locked>>
81%
29109
66%
**59
90%
[Alliant Reloder-17]*
<<locked>>
88%
30008
68%
**14
90%
[Baschieri & Pellagri 107]*
<<locked>>
81%
31807
72%
**08
90%
Hodgdon BL-C2
<<locked>>
81%
32605
74%
**64
95%
[Hodgdon CFE223]*
<<locked>>
86%
32692
74%
**51
90%
Hodgdon H322
<<locked>>
81%
36463
82%
**90
99%
[Hodgdon H380]*
<<locked>>
87%
33286
75%
**41
90%
[Hodgdon Hybrid 100V]*
<<locked>>
94%
28790
65%
**46
90%
[Hodgdon VARGET]*
<<locked>>
83%
29849
67%
**36
90%
IMR 3031
<<locked>>
81%
29095
66%
**91
98%
[IMR 4064]*
<<locked>>
82%
28863
65%
**09
90%
[IMR 4895]*
<<locked>>
81%
29762
67%
**88
92%
IMR 8208 XBR
<<locked>>
81%
34896
79%
**44
95%
Lovex D073.6
<<locked>>
81%
30574
69%
**08
96%
[Lovex S060]*
<<locked>>
81%
34664
78%
**91
94%
[Lovex S062]*
<<locked>>
81%
29167
66%
**42
93%
Norma 201
<<locked>>
81%
32663
74%
**98
95%
Norma 202
<<locked>>
81%
32082
73%
**11
97%
[Norma 203B]*
<<locked>>
81%
28718
65%
**55
91%
[Ramshot Big Game]*
<<locked>>
82%
29834
67%
**78
90%
[Ramshot TAC]*
<<locked>>
81%
35012
79%
**31
90%
[Ramshot Wild Boar]*
<<locked>>
81%
33533
76%
**51
93%
[ReloadSwiss RS 52]*
<<locked>>
81%
27238
62%
**52
92%
[ReloadSwiss RS 60]*
<<locked>>
88%
29240
66%
**91
90%
Rottweil R 901
<<locked>>
81%
36419
82%
**54
98%
[Rottweil R 902]*
<<locked>>
81%
31299
71%
**62
94%
[Rottweil R 903]*
<<locked>>
82%
25251
57%
**83
90%
[SNPE Vectan SP 11]*
<<locked>>
84%
29008
66%
**69
90%
[SNPE Vectan SP 7]*
<<locked>>
82%
33402
76%
**14
90%
[SNPE Vectan SP 9]*
<<locked>>
81%
31488
71%
**95
92%
SNPE Vectan Tubal 3000
<<locked>>
81%
34577
78%
**85
98%
SNPE Vectan Tubal 5000
<<locked>>
81%
28181
64%
**73
97%
Shooters World Match Rifle
<<locked>>
81%
30574
69%
**08
96%
[Shooters World Precision]*
<<locked>>
81%
29167
66%
**42
93%
Somchem S335
<<locked>>
81%
33837
76%
**88
98%
[Somchem S341]*
<<locked>>
81%
32198
73%
**01
92%
[Somchem S355]*
<<locked>>
81%
25976
59%
**83
90%
[Somchem S365]*
<<locked>>
93%
26789
61%
**42
90%
Vihtavuori N133
<<locked>>
81%
32213
73%
**55
99%
Vihtavuori N135
<<locked>>
81%
25106
57%
**60
97%
Vihtavuori N140
<<locked>>
81%
30240
68%
**59
97%
[Vihtavuori N150]*
<<locked>>
82%
23511
53%
**98
90%
[Vihtavuori N160]*
<<locked>>
94%
33736
76%
**51
90%
Vihtavuori N530
<<locked>>
81%
36245
82%
**80
96%
Vihtavuori N540
<<locked>>
81%
29979
68%
**75
96%
[Vihtavuori N550]*
<<locked>>
93%
32706
74%
**73
90%
[Winchester 6.5 StaBALL]*
<<locked>>
89%
29544
67%
**26
90%
Winchester 748
<<locked>>
81%
35505
80%
**10
97%

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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