Load data for .45 Auto (ACP) + .452 | 255gr | LEE Mold 452-255-RF

Recommended Powder(s): none

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.452 \| 255gr \| LEE Mold 452-255-RF
Manufacturer SKU:	452-255-RF
Bullet Weight:	255gr \| 16.5g
Bullet Diameter:	0.452" \| 11.48mm
Bullet Length:	0.668" \| 17.0mm
Caliber:	.45 Auto (ACP) load data
Case Length (l3):	0.898" \| 22.8mm
Cartridge Length (C.O.L.):	1.256" \| 31.9mm
Seated Depth:	0.310" \| 7.9mm
Shank Seated Depth:	0.310" \| 7.9mm
Case Capacity:	25.0 Grains of Water \| 1.62 cm³
Primer Size:	Large Pistol (LP)
Max. allowed Pressure:	18855 psi \| 1300 bar
LID:	LID_B3306_C724
Last updated:	2025-02-02

Load data for 46 loads in caliber .45 Auto (ACP) with .452 | 255gr | LEE Mold 452-255-RF bullet and 23 powders such as none. 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
Accurate No. 2	<<locked>>	65%	16665	88%	**7	93%
Accurate Solo 1250	<<locked>>	70%	16244	86%	**1	100%
Alliant UNIQUE	<<locked>>	69%	15171	80%	**4	95%
Baschieri & Pellagri 100	<<locked>>	65%	16549	88%	**1	100%
Hodgdon Universal	<<locked>>	65%	16433	87%	**0	100%
Lovex S020	<<locked>>	66%	16375	87%	**0	98%
Maxam CSB 1	<<locked>>	70%	15418	82%	**1	99%
Maxam CSB 2	<<locked>>	71%	14968	79%	**0	100%
Maxam CSB 3	<<locked>>	65%	15954	85%	**8	100%
ReloadSwiss RS 12	<<locked>>	64%	16868	89%	**3	100%
ReloadSwiss RS 20	<<locked>>	76%	16940	90%	**3	98%
[Rottweil P 806]*	<<locked>>	93%	16911	90%	**8	89%
SNPE Vectan A0	<<locked>>	69%	15461	82%	**8	95%
SNPE Vectan BA 9	<<locked>>	64%	16665	88%	**1	99%
[SNPE Vectan BA7 1/2]*	<<locked>>	79%	16418	87%	**0	87%
SNPE Vectan BA9 1/2	<<locked>>	64%	15722	83%	**1	99%
Somchem MP200	<<locked>>	64%	15737	83%	**0	94%
Somchem MS200	<<locked>>	66%	15476	82%	**4	96%
[Vihtavuori 3N37]*	<<locked>>	75%	16143	86%	**3	89%
Vihtavuori N32C Tin Star	<<locked>>	89%	16752	89%	**8	100%
Vihtavuori N330	<<locked>>	66%	15113	80%	**0	100%
Vihtavuori N340	<<locked>>	69%	15664	83%	**7	96%
Vihtavuori N350	<<locked>>	79%	16969	90%	**6	90%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
Accurate No. 2	<<locked>>	61%	14431	77%	**5	91%
Accurate Solo 1250	<<locked>>	61%	12314	65%	**2	98%
Alliant UNIQUE	<<locked>>	61%	11719	62%	**8	91%
Baschieri & Pellagri 100	<<locked>>	61%	14460	77%	**8	100%
Hodgdon Universal	<<locked>>	61%	14330	76%	**8	99%
Lovex S020	<<locked>>	62%	14272	76%	**1	96%
Maxam CSB 1	<<locked>>	61%	11821	63%	**9	97%
Maxam CSB 2	<<locked>>	62%	11095	59%	**5	100%
Maxam CSB 3	<<locked>>	61%	13851	73%	**8	100%
ReloadSwiss RS 12	<<locked>>	60%	14663	78%	**7	100%
ReloadSwiss RS 20	<<locked>>	60%	10298	55%	**9	91%
[Rottweil P 806]*	<<locked>>	82%	11734	62%	**3	81%
SNPE Vectan A0	<<locked>>	61%	12082	64%	**5	91%
SNPE Vectan BA 9	<<locked>>	60%	14750	78%	**5	98%
[SNPE Vectan BA7 1/2]*	<<locked>>	68%	11966	63%	**2	81%
SNPE Vectan BA9 1/2	<<locked>>	60%	13909	74%	**5	98%
Somchem MP200	<<locked>>	60%	13953	74%	**4	92%
Somchem MS200	<<locked>>	62%	13735	73%	**5	95%
[Vihtavuori 3N37]*	<<locked>>	61%	10254	54%	**9	80%
Vihtavuori N32C Tin Star	<<locked>>	73%	11052	59%	**9	100%
Vihtavuori N330	<<locked>>	62%	13068	69%	**1	99%
Vihtavuori N340	<<locked>>	61%	12038	64%	**8	92%
[Vihtavuori N350]*	<<locked>>	65%	10733	57%	**2	81%

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