Load data for .44 Auto Mag. + .429 | 220gr | Lehigh Defense Xtreme Penetrator

Recommended Powder(s): Rottweil P 806, SNPE Vectan BA7 1/2, SNPE Vectan SP 2, Vihtavuori 3N37, Vihtavuori N350

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.429 \| 220gr \| Lehigh Defense Xtreme Penetrator
Manufacturer SKU:	07429220SP
Bullet Weight:	220gr \| 14.3g
Bullet Diameter:	0.429" \| 10.90mm
Bullet Length:	0.830" \| 21.1mm
Caliber:	.44 Auto Mag. load data
Case Length (l3):	1.298" \| 33.0mm
Cartridge Length (C.O.L.):	1.674" \| 42.5mm
Seated Depth:	0.454" \| 11.5mm
Shank Seated Depth:	0.333" \| 8.4mm
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_B11104_C710
Last updated:	2025-11-04
Recommended Twist Rate:	1:30 - 1:25

Load data for 102 loads in caliber .44 Auto Mag. with .429 | 220gr | Lehigh Defense Xtreme Penetrator bullet and 51 powders such as Rottweil P 806, SNPE Vectan BA7 1/2, SNPE Vectan SP 2, Vihtavuori 3N37, Vihtavuori N350. 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>>	88%	32213	87%	**70	98%
ADI APS 350	<<locked>>	65%	31111	84%	**4	100%
ADI APS 450	<<locked>>	69%	33112	90%	**53	100%
ADI AS 30	<<locked>>	67%	31285	85%	**60	100%
ADI AS 50N	<<locked>>	66%	32619	88%	**19	100%
Accurate No. 2	<<locked>>	68%	32213	87%	**91	100%
Accurate No. 7	<<locked>>	70%	32779	89%	**29	91%
[Accurate No. 9]*	<<locked>>	79%	33185	90%	**29	85%
Accurate Solo 1000	<<locked>>	69%	32851	89%	**12	100%
Accurate Solo 1250	<<locked>>	71%	31053	84%	**42	100%
[Accurate TCM]*	<<locked>>	78%	32460	88%	**09	86%
[Alliant BLUE DOT]*	<<locked>>	90%	32358	87%	**16	89%
Alliant BULLSEYE	<<locked>>	63%	31560	85%	**14	100%
Alliant POWER PISTOL	<<locked>>	72%	31879	86%	**06	97%
Alliant UNIQUE	<<locked>>	72%	32184	87%	**24	100%
Baschieri & Pellagri 100	<<locked>>	69%	32097	87%	**06	100%
Hodgdon Clays	<<locked>>	65%	31807	86%	**14	100%
Hodgdon Universal	<<locked>>	65%	31502	85%	**58	100%
Hodgdon CFE Pistol	<<locked>>	69%	32532	88%	**71	100%
Hodgdon TrailBoss	<<locked>>	96%	17999	49%	**3	100%
Lovex D037.1	<<locked>>	70%	32779	89%	**29	91%
[Lovex D037.2]*	<<locked>>	78%	32213	87%	**16	84%
Lovex S020	<<locked>>	66%	32053	87%	**81	100%
Maxam CSB 1	<<locked>>	76%	32314	87%	**55	100%
Maxam CSB 2	<<locked>>	70%	31647	86%	**42	100%
Maxam CSB 3	<<locked>>	72%	32851	89%	**35	100%
Maxam CSB 4	<<locked>>	69%	33054	89%	**22	100%
Maxam CSB 5	<<locked>>	64%	31662	86%	**56	100%
[Ramshot Enforcer]*	<<locked>>	90%	31894	86%	**42	82%
ReloadSwiss RS 14	<<locked>>	94%	16447	44%	**9	100%
ReloadSwiss RS 20	<<locked>>	75%	32460	88%	**27	100%
ReloadSwiss RS 24	<<locked>>	75%	32343	87%	**12	93%
Rottweil P 806 👍	<<locked>>	80%	32677	88%	**39	100%
SNPE Vectan A0	<<locked>>	77%	33141	90%	**98	100%
SNPE Vectan BA 9	<<locked>>	69%	32576	88%	**68	100%
SNPE Vectan BA10	<<locked>>	63%	32169	87%	**40	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	81%	32822	89%	**53	100%
SNPE Vectan BA9 1/2	<<locked>>	68%	31792	86%	**58	100%
SNPE Vectan SP 2 👍	<<locked>>	68%	32198	87%	**16	99%
[Shooters World Heavy Pistol]*	<<locked>>	78%	32213	87%	**16	84%
Shooters World Major Pistol	<<locked>>	70%	32779	89%	**29	91%
Somchem MP200	<<locked>>	67%	32416	88%	**20	100%
Somchem MS200	<<locked>>	72%	33156	90%	**04	100%
Vihtavuori 3N37 👍	<<locked>>	74%	32561	88%	**63	100%
Vihtavuori 3N38	<<locked>>	87%	32779	89%	**12	94%
Vihtavuori N105	<<locked>>	93%	31720	86%	**48	97%
Vihtavuori N320	<<locked>>	66%	32895	89%	**19	100%
Vihtavuori N32C Tin Star	<<locked>>	90%	32793	89%	**53	100%
Vihtavuori N330	<<locked>>	68%	32068	87%	**71	100%
Vihtavuori N340	<<locked>>	72%	32764	89%	**04	100%
Vihtavuori N350 👍	<<locked>>	77%	31894	86%	**53	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	15998	43%	**1	88%
ADI APS 350	<<locked>>	62%	29037	79%	**8	100%
ADI APS 450	<<locked>>	61%	27209	74%	**8	100%
ADI AS 30	<<locked>>	61%	27441	74%	**10	100%
ADI AS 50N	<<locked>>	61%	28776	78%	**70	100%
Accurate No. 2	<<locked>>	61%	26455	72%	**12	100%
[Accurate No. 7]*	<<locked>>	61%	23511	64%	**75	85%
[Accurate No. 9]*	<<locked>>	72%	26295	71%	**14	80%
Accurate Solo 1000	<<locked>>	61%	27122	73%	**37	100%
Accurate Solo 1250	<<locked>>	62%	24076	65%	**47	100%
[Accurate TCM]*	<<locked>>	70%	24801	67%	**81	81%
[Alliant BLUE DOT]*	<<locked>>	72%	20479	55%	**89	81%
Alliant BULLSEYE	<<locked>>	61%	29863	81%	**84	100%
Alliant POWER PISTOL	<<locked>>	61%	23177	63%	**55	93%
Alliant UNIQUE	<<locked>>	60%	23699	64%	**96	100%
Baschieri & Pellagri 100	<<locked>>	62%	26585	72%	**37	100%
Hodgdon Clays	<<locked>>	62%	29530	80%	**8	100%
Hodgdon Universal	<<locked>>	61%	28137	76%	**09	100%
Hodgdon CFE Pistol	<<locked>>	60%	26092	71%	**83	100%
Hodgdon TrailBoss	<<locked>>	61%	9863	27%	**2	100%
[Lovex D037.1]*	<<locked>>	61%	23511	64%	**75	85%
[Lovex D037.2]*	<<locked>>	72%	27151	73%	**27	81%
Lovex S020	<<locked>>	61%	28152	76%	**35	100%
Maxam CSB 1	<<locked>>	61%	22307	60%	**10	100%
Maxam CSB 2	<<locked>>	60%	24279	66%	**47	100%
Maxam CSB 3	<<locked>>	61%	25382	69%	**40	100%
Maxam CSB 4	<<locked>>	61%	26934	73%	**47	100%
Maxam CSB 5	<<locked>>	61%	29631	80%	**37	100%
[Ramshot Enforcer]*	<<locked>>	87%	29631	80%	**06	81%
ReloadSwiss RS 14	<<locked>>	60%	9239	25%	**9	100%
ReloadSwiss RS 20	<<locked>>	61%	22466	61%	**83	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	20552	56%	**99	85%
Rottweil P 806	<<locked>>	61%	17999	49%	**79	95%
SNPE Vectan A0	<<locked>>	61%	22046	60%	**33	100%
SNPE Vectan BA 9	<<locked>>	60%	25817	70%	**76	100%
SNPE Vectan BA10	<<locked>>	60%	30197	82%	**17	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	19261	52%	**20	96%
SNPE Vectan BA9 1/2	<<locked>>	61%	26614	72%	**86	100%
SNPE Vectan SP 2	<<locked>>	61%	25788	70%	**11	97%
[Shooters World Heavy Pistol]*	<<locked>>	72%	27151	73%	**27	81%
[Shooters World Major Pistol]*	<<locked>>	61%	23511	64%	**75	85%
Somchem MP200	<<locked>>	61%	27369	74%	**48	100%
Somchem MS200	<<locked>>	61%	24656	67%	**86	100%
Vihtavuori 3N37	<<locked>>	61%	22031	60%	**96	98%
[Vihtavuori 3N38]*	<<locked>>	61%	16128	44%	**4	81%
[Vihtavuori N105]*	<<locked>>	61%	12865	35%	**2	80%
Vihtavuori N320	<<locked>>	61%	28572	77%	**73	100%
Vihtavuori N32C Tin Star	<<locked>>	60%	17492	47%	**3	100%
Vihtavuori N330	<<locked>>	61%	26600	72%	**99	100%
Vihtavuori N340	<<locked>>	61%	23989	65%	**79	100%
Vihtavuori N350	<<locked>>	61%	20001	54%	**53	98%

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