Load data for .38-45 ACP + .357 | 170gr | Speer SP MAG GD

Recommended Powder(s): Vihtavuori 3N37, Vihtavuori N350

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 170gr \| Speer SP MAG GD
Manufacturer SKU:	4230
Bullet Weight:	170gr \| 11.0g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.680" \| 17.3mm
Caliber:	.38-45 ACP load data
Case Length (l3):	0.898" \| 22.8mm
Cartridge Length (C.O.L.):	1.229" \| 31.2mm
Seated Depth:	0.349" \| 8.9mm
Shank Seated Depth:	0.349" \| 8.9mm
Case Capacity:	22.0 Grains of Water \| 1.43 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	34084 psi \| 2350 bar
LID:	LID_B6228_C596
Last updated:	2025-01-01

Load data for 100 loads in caliber .38-45 ACP with .357 | 170gr | Speer SP MAG GD bullet and 50 powders such as 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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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.
Case Length (Inch)
Case Length (mm)
CaseCapacity (GoW)
Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
Barrel Length (cm)
Safety Buffer (%)
.

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>>	90%	28689	84%	**42	97%
ADI APS 350	<<locked>>	66%	30081	88%	**6	100%
ADI APS 450	<<locked>>	66%	28297	83%	**9	100%
ADI AS 30	<<locked>>	66%	27340	80%	**2	100%
ADI AS 50N	<<locked>>	65%	28572	84%	**7	100%
Accurate No. 2	<<locked>>	69%	29443	86%	**76	100%
[Accurate No. 7]*	<<locked>>	73%	29501	87%	**98	89%
[Accurate No. 9]*	<<locked>>	83%	30647	90%	**01	83%
Accurate Solo 1000	<<locked>>	66%	27775	81%	**1	100%
Accurate Solo 1250	<<locked>>	74%	29414	86%	**43	100%
[Accurate TCM]*	<<locked>>	81%	29312	86%	**81	84%
[Alliant BLUE DOT]*	<<locked>>	92%	28181	83%	**65	87%
Alliant BULLSEYE	<<locked>>	65%	29559	87%	**99	100%
Alliant POWER PISTOL	<<locked>>	74%	28224	83%	**65	96%
Alliant UNIQUE	<<locked>>	73%	28021	82%	**89	100%
Baschieri & Pellagri 100	<<locked>>	70%	29327	86%	**7	100%
Hodgdon Clays	<<locked>>	66%	30647	90%	**2	100%
Hodgdon Universal	<<locked>>	69%	30066	88%	**63	100%
Hodgdon TrailBoss	<<locked>>	90%	13024	38%	**1	100%
[Lovex D037.1]*	<<locked>>	73%	29501	87%	**98	89%
[Lovex D037.2]*	<<locked>>	81%	29182	86%	**84	83%
Lovex S020	<<locked>>	68%	28892	85%	**70	100%
Maxam CSB 1	<<locked>>	77%	29443	86%	**37	100%
Maxam CSB 2	<<locked>>	73%	28369	83%	**37	100%
Maxam CSB 3	<<locked>>	70%	28210	83%	**04	100%
Maxam CSB 4	<<locked>>	70%	29805	87%	**04	100%
Maxam CSB 5	<<locked>>	65%	29820	88%	**1	100%
[Ramshot Enforcer]*	<<locked>>	96%	30618	90%	**40	82%
ReloadSwiss RS 12	<<locked>>	64%	29675	87%	**33	100%
ReloadSwiss RS 14	<<locked>>	92%	12299	36%	**5	100%
ReloadSwiss RS 20	<<locked>>	76%	28601	84%	**96	100%
ReloadSwiss RS 24	<<locked>>	78%	28979	85%	**78	91%
Rottweil P 806	<<locked>>	84%	28427	83%	**14	100%
SNPE Vectan A0	<<locked>>	77%	29704	87%	**73	100%
SNPE Vectan BA 9	<<locked>>	68%	27934	82%	**30	100%
SNPE Vectan BA7 1/2	<<locked>>	81%	28369	83%	**02	100%
SNPE Vectan BA9 1/2	<<locked>>	69%	27992	82%	**33	100%
[Shooters World Heavy Pistol]*	<<locked>>	81%	29182	86%	**84	83%
[Shooters World Major Pistol]*	<<locked>>	73%	29501	87%	**98	89%
Somchem MP200	<<locked>>	67%	28123	83%	**83	100%
Somchem MS200	<<locked>>	72%	28848	85%	**70	100%
Somchem S221	<<locked>>	66%	29646	87%	**71	95%
Vihtavuori 3N37 👍	<<locked>>	77%	30110	88%	**48	100%
Vihtavuori 3N38	<<locked>>	89%	28805	85%	**71	92%
Vihtavuori N105	<<locked>>	94%	25904	76%	**81	95%
Vihtavuori N320	<<locked>>	65%	27209	80%	**4	100%
Vihtavuori N32C Tin Star	<<locked>>	92%	29022	85%	**5	100%
Vihtavuori N330	<<locked>>	68%	27760	81%	**40	100%
Vihtavuori N340	<<locked>>	73%	28616	84%	**76	100%
Vihtavuori N350 👍	<<locked>>	78%	28471	84%	**25	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	12749	37%	**7	84%
ADI APS 350	<<locked>>	61%	26513	78%	**6	100%
ADI APS 450	<<locked>>	61%	25019	73%	**6	100%
ADI AS 30	<<locked>>	61%	24004	70%	**2	100%
ADI AS 50N	<<locked>>	61%	25367	74%	**8	100%
Accurate No. 2	<<locked>>	61%	22843	67%	**8	100%
[Accurate No. 7]*	<<locked>>	61%	18782	55%	**14	81%
[Accurate No. 9]*	<<locked>>	78%	25918	76%	**38	81%
Accurate Solo 1000	<<locked>>	62%	24613	72%	**5	100%
Accurate Solo 1250	<<locked>>	62%	20494	60%	**8	100%
[Accurate TCM]*	<<locked>>	76%	24714	73%	**15	81%
[Alliant BLUE DOT]*	<<locked>>	80%	20030	59%	**20	81%
Alliant BULLSEYE	<<locked>>	61%	26411	78%	**60	100%
Alliant POWER PISTOL	<<locked>>	61%	18884	55%	**01	90%
Alliant UNIQUE	<<locked>>	61%	20030	59%	**8	100%
Baschieri & Pellagri 100	<<locked>>	62%	23032	68%	**2	100%
Hodgdon Clays	<<locked>>	61%	26905	79%	**9	100%
Hodgdon Universal	<<locked>>	61%	23946	70%	**8	100%
Hodgdon TrailBoss	<<locked>>	75%	9747	29%	**6	100%
[Lovex D037.1]*	<<locked>>	61%	18782	55%	**14	81%
[Lovex D037.2]*	<<locked>>	78%	26919	79%	**52	81%
Lovex S020	<<locked>>	60%	22872	67%	**1	100%
Maxam CSB 1	<<locked>>	60%	18376	54%	**9	100%
Maxam CSB 2	<<locked>>	60%	19725	58%	**2	100%
Maxam CSB 3	<<locked>>	62%	22234	65%	**2	100%
Maxam CSB 4	<<locked>>	61%	23337	68%	**5	100%
Maxam CSB 5	<<locked>>	61%	26339	77%	**2	100%
[Ramshot Enforcer]*	<<locked>>	93%	28007	82%	**07	80%
ReloadSwiss RS 12	<<locked>>	61%	26397	77%	**7	100%
ReloadSwiss RS 14	<<locked>>	78%	9210	27%	**6	100%
ReloadSwiss RS 20	<<locked>>	61%	18086	53%	**5	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	16665	49%	**1	81%
Rottweil P 806	<<locked>>	61%	12444	36%	**2	90%
SNPE Vectan A0	<<locked>>	61%	19160	56%	**2	100%
SNPE Vectan BA 9	<<locked>>	60%	22582	66%	**5	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	15664	46%	**3	94%
SNPE Vectan BA9 1/2	<<locked>>	61%	22350	66%	**8	100%
[Shooters World Heavy Pistol]*	<<locked>>	78%	26919	79%	**52	81%
[Shooters World Major Pistol]*	<<locked>>	61%	18782	55%	**14	81%
Somchem MP200	<<locked>>	60%	22727	67%	**10	100%
Somchem MS200	<<locked>>	60%	20682	61%	**5	100%
Somchem S221	<<locked>>	61%	24860	73%	**96	92%
Vihtavuori 3N37	<<locked>>	61%	17927	53%	**8	97%
[Vihtavuori 3N38]*	<<locked>>	67%	14866	44%	**9	80%
[Vihtavuori N105]*	<<locked>>	71%	12923	38%	**6	81%
Vihtavuori N320	<<locked>>	61%	23844	70%	**5	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	14040	41%	**8	100%
Vihtavuori N330	<<locked>>	60%	21654	64%	**5	100%
Vihtavuori N340	<<locked>>	61%	20291	60%	**5	100%
Vihtavuori N350	<<locked>>	61%	16433	48%	**5	96%

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