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

Recommended Powder(s): Alliant UNIQUE, ReloadSwiss RS 20, Somchem MP200, Somchem MS200, 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 Rem. Mag. load data
Case Length (l3):	1.275" \| 32.4mm
Cartridge Length (C.O.L.):	1.586" \| 40.3mm
Seated Depth:	0.294" \| 7.5mm
Shank Seated Depth:	0.258" \| 6.6mm
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_B10986_C714
Last updated:	2025-11-04
Recommended Twist Rate:	1:36 - 1:30

Load data for 120 loads in caliber .44 Rem. Mag. with .429 | 125gr | Lehigh Defense Xtreme Defense bullet and 60 powders such as Alliant UNIQUE, ReloadSwiss RS 20, Somchem MP200, Somchem MS200, 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".

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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%	31966	79%	**45	91%
ADI AP 70N	<<locked>>	69%	35607	88%	**42	100%
ADI APS 350	<<locked>>	75%	35578	88%	**09	100%
ADI APS 450	<<locked>>	77%	35172	87%	**49	100%
ADI AS 30	<<locked>>	79%	35520	87%	**04	100%
ADI AS 50N	<<locked>>	75%	34983	86%	**57	100%
Accurate No. 2	<<locked>>	77%	35201	87%	**49	100%
Accurate No. 5	<<locked>>	63%	35592	88%	**24	95%
[Accurate No. 7]*	<<locked>>	81%	36332	89%	**70	83%
Accurate Solo 1000	<<locked>>	79%	36521	90%	**57	100%
Accurate Solo 1250	<<locked>>	84%	36289	89%	**36	100%
Alliant BULLSEYE	<<locked>>	73%	34954	86%	**95	100%
Alliant POWER PISTOL	<<locked>>	85%	36477	90%	**96	93%
Alliant Sport Pistol	<<locked>>	69%	35723	88%	**98	100%
Alliant UNIQUE 👍	<<locked>>	84%	36129	89%	**14	100%
Baschieri & Pellagri 100	<<locked>>	80%	36492	90%	**70	100%
Hodgdon Clays	<<locked>>	75%	35998	89%	**35	100%
Hodgdon HS-6	<<locked>>	69%	36143	89%	**11	97%
Hodgdon Longshot	<<locked>>	66%	35621	88%	**01	98%
Hodgdon Universal	<<locked>>	78%	36303	89%	**52	100%
Hodgdon CFE Pistol	<<locked>>	79%	35766	88%	**26	100%
Hodgdon TrailBoss	<<locked>>	95%	14866	37%	**84	100%
Lovex D036	<<locked>>	63%	35534	87%	**24	95%
[Lovex D037.1]*	<<locked>>	81%	36332	89%	**70	83%
Lovex S011	<<locked>>	69%	36506	90%	**03	100%
Lovex S020	<<locked>>	76%	35621	88%	**45	100%
Maxam CSB 1	<<locked>>	88%	36216	89%	**26	100%
Maxam CSB 2	<<locked>>	84%	36463	90%	**32	100%
Maxam CSB 3	<<locked>>	81%	35476	87%	**80	100%
Maxam CSB 4	<<locked>>	78%	35085	86%	**50	100%
Maxam CSB 5	<<locked>>	74%	35070	86%	**94	100%
Ramshot Silhouette	<<locked>>	69%	35418	87%	**95	100%
Ramshot True Blue	<<locked>>	64%	35215	87%	**98	98%
ReloadSwiss RS 12	<<locked>>	72%	35984	89%	**96	100%
ReloadSwiss RS 14	<<locked>>	94%	13982	34%	**84	100%
ReloadSwiss RS 20 👍	<<locked>>	85%	35201	87%	**04	100%
[ReloadSwiss RS 24]*	<<locked>>	87%	35462	87%	**54	86%
Rottweil P 801	<<locked>>	68%	36492	90%	**70	100%
Rottweil P 806	<<locked>>	92%	36492	90%	**23	98%
SNPE Vectan A0	<<locked>>	87%	35447	87%	**45	100%
SNPE Vectan BA 9	<<locked>>	79%	36332	89%	**32	100%
SNPE Vectan BA10	<<locked>>	71%	35157	87%	**49	100%
SNPE Vectan BA7 1/2	<<locked>>	92%	35926	88%	**91	98%
SNPE Vectan BA9 1/2	<<locked>>	81%	36448	90%	**42	100%
SNPE Vectan SP 2	<<locked>>	79%	35302	87%	**93	94%
Shooters World Auto Pistol	<<locked>>	63%	35534	87%	**24	95%
[Shooters World Major Pistol]*	<<locked>>	81%	36332	89%	**70	83%
Somchem MP200 👍	<<locked>>	77%	35607	88%	**91	100%
Somchem MS200 👍	<<locked>>	82%	36143	89%	**72	100%
Somchem S221	<<locked>>	72%	35578	88%	**41	90%
Vihtavuori 3N37	<<locked>>	85%	35230	87%	**18	98%
[Vihtavuori 3N38]*	<<locked>>	97%	34461	85%	**11	86%
[Vihtavuori N105]*	<<locked>>	96%	26426	65%	**13	85%
Vihtavuori N310	<<locked>>	63%	35404	87%	**58	100%
Vihtavuori N320	<<locked>>	75%	34751	86%	**57	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	31430	77%	**09	100%
Vihtavuori N330	<<locked>>	79%	35998	89%	**42	100%
Vihtavuori N340 👍	<<locked>>	82%	35288	87%	**55	100%
Vihtavuori N350	<<locked>>	88%	35433	87%	**11	99%
Winchester 231	<<locked>>	66%	35273	87%	**93	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	73%	18260	45%	**94	81%
ADI AP 70N	<<locked>>	61%	28514	70%	**04	100%
ADI APS 350	<<locked>>	61%	25556	63%	**48	100%
ADI APS 450	<<locked>>	61%	24743	61%	**65	100%
ADI AS 30	<<locked>>	61%	23424	58%	**94	100%
ADI AS 50N	<<locked>>	61%	24903	61%	**70	100%
Accurate No. 2	<<locked>>	61%	22162	55%	**76	96%
Accurate No. 5	<<locked>>	61%	32909	81%	**81	94%
[Accurate No. 7]*	<<locked>>	75%	30327	75%	**62	80%
Accurate Solo 1000	<<locked>>	61%	23148	57%	**24	100%
Accurate Solo 1250	<<locked>>	61%	19870	49%	**04	100%
Alliant BULLSEYE	<<locked>>	61%	25396	63%	**88	99%
[Alliant POWER PISTOL]*	<<locked>>	61%	19145	47%	**63	81%
Alliant Sport Pistol	<<locked>>	61%	28442	70%	**63	100%
Alliant UNIQUE	<<locked>>	61%	20247	50%	**53	97%
Baschieri & Pellagri 100	<<locked>>	61%	22321	55%	**11	100%
Hodgdon Clays	<<locked>>	61%	25976	64%	**65	100%
Hodgdon HS-6	<<locked>>	61%	27572	68%	**47	94%
Hodgdon Longshot	<<locked>>	61%	30487	75%	**13	97%
Hodgdon Universal	<<locked>>	61%	24192	60%	**19	100%
Hodgdon CFE Pistol	<<locked>>	61%	22191	55%	**60	100%
Hodgdon TrailBoss	<<locked>>	60%	8296	20%	**5	99%
Lovex D036	<<locked>>	61%	32851	81%	**78	94%
[Lovex D037.1]*	<<locked>>	75%	30327	75%	**62	80%
Lovex S011	<<locked>>	61%	28660	71%	**72	100%
Lovex S020	<<locked>>	61%	23032	57%	**06	100%
Maxam CSB 1	<<locked>>	61%	18724	46%	**65	100%
Maxam CSB 2	<<locked>>	61%	20189	50%	**17	100%
Maxam CSB 3	<<locked>>	61%	21611	53%	**17	100%
Maxam CSB 4	<<locked>>	61%	23366	58%	**37	100%
Maxam CSB 5	<<locked>>	61%	25759	63%	**30	100%
Ramshot Silhouette	<<locked>>	61%	27876	69%	**37	99%
Ramshot True Blue	<<locked>>	61%	31473	77%	**29	97%
ReloadSwiss RS 12	<<locked>>	61%	26803	66%	**45	100%
ReloadSwiss RS 14	<<locked>>	61%	8195	20%	**9	97%
ReloadSwiss RS 20	<<locked>>	61%	18173	45%	**14	98%
[ReloadSwiss RS 24]*	<<locked>>	76%	26556	65%	**67	81%
Rottweil P 801	<<locked>>	61%	30284	75%	**75	100%
[Rottweil P 806]*	<<locked>>	62%	13779	34%	**32	80%
SNPE Vectan A0	<<locked>>	61%	19014	47%	**81	96%
SNPE Vectan BA 9	<<locked>>	61%	22452	55%	**60	100%
SNPE Vectan BA10	<<locked>>	61%	27470	68%	**17	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	16070	40%	**09	85%
SNPE Vectan BA9 1/2	<<locked>>	61%	22162	55%	**60	100%
[SNPE Vectan SP 2]*	<<locked>>	61%	19885	49%	**06	84%
Shooters World Auto Pistol	<<locked>>	61%	32851	81%	**78	94%
[Shooters World Major Pistol]*	<<locked>>	75%	30327	75%	**62	80%
Somchem MP200	<<locked>>	61%	22989	57%	**16	97%
Somchem MS200	<<locked>>	61%	21045	52%	**57	98%
[Somchem S221]*	<<locked>>	61%	25034	62%	**98	83%
[Vihtavuori 3N37]*	<<locked>>	61%	18086	45%	**04	89%
[Vihtavuori 3N38]*	<<locked>>	85%	25280	62%	**24	81%
[Vihtavuori N105]*	<<locked>>	89%	21799	54%	**78	81%
Vihtavuori N310	<<locked>>	61%	33286	82%	**29	100%
Vihtavuori N320	<<locked>>	61%	23699	58%	**67	100%
Vihtavuori N32C Tin Star	<<locked>>	62%	14982	37%	**71	100%
Vihtavuori N330	<<locked>>	61%	21770	54%	**83	100%
Vihtavuori N340	<<locked>>	61%	20044	49%	**27	97%
[Vihtavuori N350]*	<<locked>>	61%	16491	41%	**52	87%
Winchester 231	<<locked>>	61%	30792	76%	**24	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.

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