Load data for .44 Auto Mag. + .429 | 125gr | Lehigh Defense Xtreme Defense

Recommended Powder(s): Alliant UNIQUE, ReloadSwiss RS 20, SNPE Vectan A0, Somchem MP200, Vihtavuori N340

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.429 \| 125gr \| Lehigh Defense Xtreme Defense
Manufacturer SKU:	09429125SP
Bullet Weight:	125gr \| 8.1g
Bullet Diameter:	0.429" \| 10.90mm
Bullet Length:	0.605" \| 15.4mm
Caliber:	.44 Auto Mag. load data
Case Length (l3):	1.298" \| 33.0mm
Cartridge Length (C.O.L.):	1.674" \| 42.5mm
Seated Depth:	0.229" \| 5.8mm
Shank Seated Depth:	0.193" \| 4.9mm
Case Capacity:	39.0 Grains of Water \| 2.53 cm³
Primer Size:	Large Pistol Magnum (LPM)
Max. allowed Pressure:	36985 psi \| 2550 bar
LID:	LID_B10986_C710
Last updated:	2025-11-04
Recommended Twist Rate:	1:35 - 1:30

Load data for 106 loads in caliber .44 Auto Mag. with .429 | 125gr | Lehigh Defense Xtreme Defense bullet and 53 powders such as Alliant UNIQUE, ReloadSwiss RS 20, SNPE Vectan A0, Somchem MP200, Vihtavuori N340. 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)
Case Length (Inch)
Case Length (mm)
CaseCapacity (GoW)
Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
Barrel Length (cm)
Safety Buffer (%)
.
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>>	95%	32793	89%	**78	92%
ADI AP 70N	<<locked>>	64%	32387	88%	**86	100%
ADI APS 350	<<locked>>	70%	32996	89%	**80	100%
ADI APS 450	<<locked>>	72%	32576	88%	**16	100%
ADI AS 30	<<locked>>	74%	32895	89%	**75	100%
ADI AS 50N	<<locked>>	70%	32445	88%	**34	100%
Accurate No. 2	<<locked>>	72%	32314	87%	**03	100%
[Accurate No. 7]*	<<locked>>	75%	32126	87%	**18	82%
Accurate Solo 1000	<<locked>>	73%	32445	88%	**14	100%
Accurate Solo 1250	<<locked>>	79%	33127	90%	**93	100%
Alliant BULLSEYE	<<locked>>	69%	32285	87%	**59	100%
Alliant POWER PISTOL	<<locked>>	79%	32822	89%	**27	91%
Alliant Sport Pistol	<<locked>>	64%	32401	88%	**55	100%
Alliant UNIQUE 👍	<<locked>>	78%	32111	87%	**45	100%
Baschieri & Pellagri 100	<<locked>>	74%	32387	88%	**08	100%
Hodgdon Clays	<<locked>>	70%	33272	90%	**06	100%
Hodgdon HS-6	<<locked>>	64%	32401	88%	**68	96%
Hodgdon Universal	<<locked>>	71%	32387	88%	**86	100%
Hodgdon CFE Pistol	<<locked>>	74%	32372	88%	**90	100%
Hodgdon TrailBoss	<<locked>>	97%	15983	43%	**20	100%
[Lovex D037.1]*	<<locked>>	75%	32126	87%	**18	82%
Lovex S011	<<locked>>	64%	33025	89%	**54	100%
Lovex S020	<<locked>>	72%	33083	89%	**16	100%
Maxam CSB 1	<<locked>>	82%	32590	88%	**67	100%
Maxam CSB 2	<<locked>>	77%	32169	87%	**67	100%
Maxam CSB 3	<<locked>>	76%	32648	88%	**47	100%
Maxam CSB 4	<<locked>>	74%	33112	90%	**31	100%
Maxam CSB 5	<<locked>>	69%	32663	88%	**62	100%
Ramshot Silhouette	<<locked>>	65%	32489	88%	**49	100%
ReloadSwiss RS 12	<<locked>>	67%	33199	90%	**60	100%
ReloadSwiss RS 14	<<locked>>	97%	14982	41%	**24	100%
ReloadSwiss RS 20 👍	<<locked>>	80%	32213	87%	**55	100%
[ReloadSwiss RS 24]*	<<locked>>	82%	33011	89%	**08	85%
Rottweil P 801	<<locked>>	63%	33083	89%	**31	100%
Rottweil P 806	<<locked>>	87%	33228	90%	**67	97%
SNPE Vectan A0 👍	<<locked>>	81%	32489	88%	**09	100%
SNPE Vectan BA 9	<<locked>>	74%	32909	89%	**80	100%
SNPE Vectan BA10	<<locked>>	67%	32561	88%	**16	100%
SNPE Vectan BA7 1/2	<<locked>>	86%	31966	86%	**29	97%
SNPE Vectan BA9 1/2	<<locked>>	75%	33011	89%	**96	100%
SNPE Vectan SP 2	<<locked>>	74%	32851	89%	**44	94%
[Shooters World Major Pistol]*	<<locked>>	75%	32126	87%	**18	82%
Somchem MP200 👍	<<locked>>	72%	31966	86%	**32	100%
Somchem MS200	<<locked>>	76%	32126	87%	**13	100%
[Somchem S221]*	<<locked>>	68%	33243	90%	**91	89%
Vihtavuori 3N37	<<locked>>	80%	32416	88%	**78	98%
[Vihtavuori 3N38]*	<<locked>>	93%	33054	89%	**01	86%
[Vihtavuori N105]*	<<locked>>	96%	27717	75%	**55	87%
Vihtavuori N320	<<locked>>	70%	31937	86%	**17	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	32518	88%	**32	100%
Vihtavuori N330	<<locked>>	74%	33156	90%	**16	100%
Vihtavuori N340 👍	<<locked>>	77%	32416	88%	**26	100%
Vihtavuori N350	<<locked>>	84%	32996	89%	**78	98%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	68%	17114	46%	**75	80%
ADI AP 70N	<<locked>>	61%	29515	80%	**34	100%
ADI APS 350	<<locked>>	61%	26745	72%	**81	100%
ADI APS 450	<<locked>>	61%	25382	69%	**94	100%
ADI AS 30	<<locked>>	61%	24526	66%	**24	100%
ADI AS 50N	<<locked>>	61%	25773	70%	**96	100%
Accurate No. 2	<<locked>>	61%	22713	61%	**96	97%
[Accurate No. 7]*	<<locked>>	73%	30153	82%	**62	81%
Accurate Solo 1000	<<locked>>	61%	24091	65%	**47	100%
Accurate Solo 1250	<<locked>>	61%	20566	56%	**30	100%
Alliant BULLSEYE	<<locked>>	61%	25860	70%	**17	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	19653	53%	**86	82%
Alliant Sport Pistol	<<locked>>	61%	29501	80%	**96	100%
Alliant UNIQUE	<<locked>>	61%	20827	56%	**90	98%
Baschieri & Pellagri 100	<<locked>>	61%	23018	62%	**37	100%
Hodgdon Clays	<<locked>>	61%	27021	73%	**04	100%
Hodgdon HS-6	<<locked>>	61%	28761	78%	**90	95%
Hodgdon Universal	<<locked>>	61%	24831	67%	**35	100%
Hodgdon CFE Pistol	<<locked>>	61%	23076	62%	**96	100%
Hodgdon TrailBoss	<<locked>>	61%	8746	24%	**5	100%
[Lovex D037.1]*	<<locked>>	73%	30153	82%	**62	81%
Lovex S011	<<locked>>	61%	29791	81%	**98	100%
Lovex S020	<<locked>>	61%	24308	66%	**52	100%
Maxam CSB 1	<<locked>>	61%	19783	53%	**98	100%
Maxam CSB 2	<<locked>>	61%	21132	57%	**44	100%
Maxam CSB 3	<<locked>>	61%	22437	61%	**47	100%
Maxam CSB 4	<<locked>>	61%	23670	64%	**50	100%
Maxam CSB 5	<<locked>>	61%	26701	72%	**60	100%
Ramshot Silhouette	<<locked>>	61%	29109	79%	**73	99%
ReloadSwiss RS 12	<<locked>>	61%	27746	75%	**75	100%
ReloadSwiss RS 14	<<locked>>	62%	8470	23%	**2	97%
ReloadSwiss RS 20	<<locked>>	61%	18724	51%	**47	98%
[ReloadSwiss RS 24]*	<<locked>>	73%	25556	69%	**50	80%
Rottweil P 801	<<locked>>	61%	31662	86%	**94	100%
[Rottweil P 806]*	<<locked>>	61%	14460	39%	**48	82%
SNPE Vectan A0	<<locked>>	61%	19392	52%	**01	97%
SNPE Vectan BA 9	<<locked>>	61%	23279	63%	**96	100%
SNPE Vectan BA10	<<locked>>	61%	28108	76%	**44	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	16694	45%	**35	86%
SNPE Vectan BA9 1/2	<<locked>>	61%	23337	63%	**96	100%
[SNPE Vectan SP 2]*	<<locked>>	61%	21016	57%	**52	85%
[Shooters World Major Pistol]*	<<locked>>	73%	30153	82%	**62	81%
Somchem MP200	<<locked>>	61%	24076	65%	**55	98%
Somchem MS200	<<locked>>	61%	21770	59%	**83	99%
[Somchem S221]*	<<locked>>	61%	26049	70%	**37	85%
Vihtavuori 3N37	<<locked>>	61%	19102	52%	**47	90%
[Vihtavuori 3N38]*	<<locked>>	81%	24120	65%	**04	80%
[Vihtavuori N105]*	<<locked>>	85%	20740	56%	**65	80%
Vihtavuori N320	<<locked>>	61%	24860	67%	**96	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	15403	42%	**88	100%
Vihtavuori N330	<<locked>>	61%	22713	61%	**09	100%
Vihtavuori N340	<<locked>>	61%	20552	56%	**60	98%
[Vihtavuori N350]*	<<locked>>	61%	17274	47%	**91	89%

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.

<<locked>>... you need to buy an access license to unlock the data