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Load data for .44 Rem. Mag. + .429 | 300gr | Barnes Buster

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Recommended Powder(s): Alliant POWER PISTOL, Rottweil P 806, SNPE Vectan BA7 1/2, Somchem S221, Vihtavuori N105

.44 Rem. Mag. + .429 | 300gr | Barnes Buster

Load Specifications

Bullet:
.429 | 300gr | Barnes Buster
Manufacturer SKU:
30545
Bullet Weight:
300gr | 19.4g
Bullet Diameter:
0.429" | 10.90mm
Bullet Length:
0.928" | 23.6mm
Caliber:
.44 Rem. Mag. load data
Case Length (l3):
1.275" | 32.4mm
Cartridge Length (C.O.L.):
1.586" | 40.3mm
Seated Depth:
0.617" | 15.7mm
Shank Seated Depth:
0.617" | 15.7mm
Case Capacity:
39.5 Grains of Water | 2.56 cm³
Primer Size:
Large Pistol Magnum (LPM)
Max. allowed Pressure:
40611 psi | 2800 bar
LID:
LID_B785_C714
Last updated:
2025-01-01

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

Load data for 118 loads in caliber .44 Rem. Mag. with .429 | 300gr | Barnes Buster bullet and 59 powders such as Alliant POWER PISTOL, Rottweil P 806, SNPE Vectan BA7 1/2, Somchem S221, Vihtavuori N105. 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 AP 100
<<locked>>
96%
36245
89%
**66
100%
ADI AP 70N
<<locked>>
69%
39885
98%
**4
100%
ADI AS 30
<<locked>>
80%
40205
99%
**2
100%
ADI AS 50N
<<locked>>
74%
38783
96%
**8
100%
Accurate No. 2
<<locked>>
76%
39494
97%
**07
100%
Accurate No. 5
<<locked>>
63%
40451
100%
**02
100%
Accurate No. 7
<<locked>>
78%
39450
97%
**55
96%
Accurate No. 9
<<locked>>
85%
38203
94%
**29
90%
Accurate Solo 1000
<<locked>>
78%
39378
97%
**8
100%
Accurate Solo 1250
<<locked>>
81%
37710
93%
**1
100%
Accurate TCM
<<locked>>
86%
38957
96%
**38
92%
[Alliant 2400]*
<<locked>>
97%
37405
92%
**45
87%
Alliant BULLSEYE
<<locked>>
73%
39363
97%
**37
100%
Alliant POWER PISTOL 👍
<<locked>>
81%
38058
94%
**22
100%
Alliant UNIQUE
<<locked>>
83%
39305
97%
**40
100%
Baschieri & Pellagri 100
<<locked>>
77%
38218
94%
**2
100%
Hodgdon Clays
<<locked>>
74%
38334
94%
**0
100%
Hodgdon HS-6
<<locked>>
67%
38493
95%
**66
100%
Hodgdon Longshot
<<locked>>
65%
39784
98%
**73
100%
Hodgdon Universal
<<locked>>
77%
39885
98%
**4
100%
Lovex D036
<<locked>>
63%
40408
99%
**02
100%
Lovex D037.1
<<locked>>
78%
39450
97%
**55
96%
Lovex D037.2
<<locked>>
85%
38203
94%
**29
90%
Lovex S011
<<locked>>
67%
38537
95%
**5
100%
Lovex S020
<<locked>>
75%
39900
98%
**07
100%
Maxam CSB 1
<<locked>>
85%
38159
94%
**5
100%
Maxam CSB 2
<<locked>>
81%
38334
94%
**5
100%
Maxam CSB 3
<<locked>>
82%
40408
99%
**1
100%
Maxam CSB 4
<<locked>>
78%
39508
97%
**2
100%
Maxam CSB 5
<<locked>>
73%
38043
94%
**9
100%
[Ramshot Enforcer]*
<<locked>>
95%
35317
87%
**35
88%
Ramshot Silhouette
<<locked>>
68%
39102
96%
**40
100%
Ramshot True Blue
<<locked>>
63%
38841
96%
**60
100%
ReloadSwiss RS 12
<<locked>>
72%
40495
100%
**8
100%
ReloadSwiss RS 20
<<locked>>
82%
37971
94%
**20
100%
ReloadSwiss RS 24
<<locked>>
84%
38392
95%
**29
97%
Rottweil P 801
<<locked>>
66%
38334
94%
**2
100%
Rottweil P 806 👍
<<locked>>
89%
38783
95%
**42
100%
SNPE Vectan A0
<<locked>>
86%
39740
98%
**04
100%
SNPE Vectan BA 9
<<locked>>
78%
39827
98%
**4
100%
SNPE Vectan BA10
<<locked>>
72%
38682
95%
**3
100%
SNPE Vectan BA7 1/2 👍
<<locked>>
90%
38885
96%
**50
100%
SNPE Vectan BA9 1/2
<<locked>>
79%
39885
98%
**8
100%
Shooters World Auto Pistol
<<locked>>
63%
40408
99%
**02
100%
Shooters World Heavy Pistol
<<locked>>
85%
38203
94%
**29
90%
Shooters World Major Pistol
<<locked>>
78%
39450
97%
**55
96%
Somchem MP200
<<locked>>
75%
38145
94%
**24
100%
Somchem MS200
<<locked>>
81%
40016
99%
**17
100%
Somchem S221 👍
<<locked>>
71%
39262
97%
**12
99%
Vihtavuori 3N37
<<locked>>
84%
40553
100%
**83
100%
Vihtavuori 3N38
<<locked>>
97%
40495
100%
**38
98%
Vihtavuori N105 👍
<<locked>>
96%
31372
77%
**89
99%
Vihtavuori N310
<<locked>>
64%
40263
99%
**9
100%
Vihtavuori N320
<<locked>>
74%
37855
93%
**8
100%
Vihtavuori N32C Tin Star
<<locked>>
97%
35114
86%
**3
100%
Vihtavuori N330
<<locked>>
76%
37855
93%
**4
100%
Vihtavuori N340
<<locked>>
82%
40045
99%
**20
100%
Vihtavuori N350
<<locked>>
85%
38116
94%
**56
100%
Winchester 231
<<locked>>
66%
40292
99%
**8
100%

Max Load - Barrel Length: 5.50''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AP 100
<<locked>>
61%
14750
36%
**8
90%
ADI AP 70N
<<locked>>
61%
31488
78%
**2
100%
ADI AS 30
<<locked>>
61%
25730
63%
**4
100%
ADI AS 50N
<<locked>>
61%
27485
68%
**7
100%
Accurate No. 2
<<locked>>
61%
24889
61%
**3
100%
Accurate No. 5
<<locked>>
61%
37782
93%
**79
100%
[Accurate No. 7]*
<<locked>>
61%
21466
53%
**8
87%
[Accurate No. 9]*
<<locked>>
69%
21422
53%
**9
80%
Accurate Solo 1000
<<locked>>
60%
25498
63%
**4
100%
Accurate Solo 1250
<<locked>>
61%
22220
55%
**4
100%
[Accurate TCM]*
<<locked>>
67%
20305
50%
**6
81%
[Alliant 2400]*
<<locked>>
84%
25933
64%
**01
81%
Alliant BULLSEYE
<<locked>>
61%
28355
70%
**8
100%
Alliant POWER PISTOL
<<locked>>
61%
21089
52%
**6
95%
Alliant UNIQUE
<<locked>>
61%
22481
55%
**0
100%
Baschieri & Pellagri 100
<<locked>>
61%
24816
61%
**4
100%
Hodgdon Clays
<<locked>>
62%
28848
71%
**8
100%
Hodgdon HS-6
<<locked>>
61%
31169
77%
**7
100%
Hodgdon Longshot
<<locked>>
61%
34635
85%
**24
100%
Hodgdon Universal
<<locked>>
61%
26658
66%
**3
100%
Lovex D036
<<locked>>
61%
37724
93%
**79
100%
[Lovex D037.1]*
<<locked>>
61%
21466
53%
**8
87%
[Lovex D037.2]*
<<locked>>
68%
21422
53%
**9
80%
Lovex S011
<<locked>>
61%
32532
80%
**6
100%
Lovex S020
<<locked>>
61%
25991
64%
**9
100%
Maxam CSB 1
<<locked>>
62%
21190
52%
**4
100%
Maxam CSB 2
<<locked>>
62%
22974
57%
**0
100%
Maxam CSB 3
<<locked>>
62%
24134
59%
**4
100%
Maxam CSB 4
<<locked>>
61%
25556
63%
**4
100%
Maxam CSB 5
<<locked>>
62%
29109
72%
**0
100%
[Ramshot Enforcer]*
<<locked>>
84%
23830
59%
**8
80%
Ramshot Silhouette
<<locked>>
61%
31502
78%
**1
100%
Ramshot True Blue
<<locked>>
61%
36361
90%
**37
100%
ReloadSwiss RS 12
<<locked>>
60%
29051
72%
**3
100%
ReloadSwiss RS 20
<<locked>>
62%
21002
52%
**6
100%
[ReloadSwiss RS 24]*
<<locked>>
62%
19261
47%
**3
87%
Rottweil P 801
<<locked>>
60%
32822
81%
**3
100%
Rottweil P 806
<<locked>>
61%
15214
37%
**0
96%
SNPE Vectan A0
<<locked>>
61%
21074
52%
**7
100%
SNPE Vectan BA 9
<<locked>>
61%
25150
62%
**6
100%
SNPE Vectan BA10
<<locked>>
62%
30139
74%
**1
100%
SNPE Vectan BA7 1/2
<<locked>>
60%
17361
43%
**4
97%
SNPE Vectan BA9 1/2
<<locked>>
61%
24700
61%
**6
100%
Shooters World Auto Pistol
<<locked>>
61%
37724
93%
**79
100%
[Shooters World Heavy Pistol]*
<<locked>>
68%
21422
53%
**9
80%
[Shooters World Major Pistol]*
<<locked>>
61%
21466
53%
**8
87%
Somchem MP200
<<locked>>
62%
26092
64%
**6
100%
Somchem MS200
<<locked>>
60%
22742
56%
**3
100%
Somchem S221
<<locked>>
61%
28369
70%
**7
96%
Vihtavuori 3N37
<<locked>>
61%
20479
50%
**6
99%
[Vihtavuori 3N38]*
<<locked>>
60%
13735
34%
**1
82%
[Vihtavuori N105]*
<<locked>>
60%
10660
26%
**2
80%
Vihtavuori N310
<<locked>>
61%
36840
91%
**3
100%
Vihtavuori N320
<<locked>>
60%
26295
65%
**7
100%
Vihtavuori N32C Tin Star
<<locked>>
61%
15824
39%
**6
100%
Vihtavuori N330
<<locked>>
60%
24323
60%
**0
100%
Vihtavuori N340
<<locked>>
61%
22220
55%
**3
100%
Vihtavuori N350
<<locked>>
61%
18550
46%
**0
99%
Winchester 231
<<locked>>
61%
34490
85%
**8
100%

Start Load - Barrel Length: 5.50''

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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