Load data for .45 Win. Mag. + .452 | 255gr | LEE Mold 452-255-RF

Recommended Powder(s): ADI AP 100, SNPE Vectan BA7 1/2, Vihtavuori 3N37, Vihtavuori N350

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 Win. Mag. load data
Case Length (l3):	1.198" \| 30.4mm
Cartridge Length (C.O.L.):	1.551" \| 39.4mm
Seated Depth:	0.315" \| 8.0mm
Shank Seated Depth:	0.315" \| 8.0mm
Case Capacity:	38.0 Grains of Water \| 2.47 cm³
Primer Size:	Small Pistol Magnum (SPM)
Max. allowed Pressure:	39885 psi \| 2750 bar
LID:	LID_B3306_C740
Last updated:	2025-01-01

Load data for 110 loads in caliber .45 Win. Mag. with .452 | 255gr | LEE Mold 452-255-RF bullet and 55 powders such as ADI AP 100, SNPE Vectan BA7 1/2, 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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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>>	94%	34243	86%	**86	99%
ADI AP 70N	<<locked>>	65%	34301	86%	**84	100%
ADI AS 30	<<locked>>	74%	34519	87%	**93	100%
ADI AS 50N	<<locked>>	71%	34098	86%	**32	100%
Accurate No. 2	<<locked>>	73%	35636	89%	**17	100%
Accurate No. 7	<<locked>>	76%	35694	89%	**62	93%
[Accurate No. 9]*	<<locked>>	84%	35259	88%	**45	87%
Accurate Solo 1000	<<locked>>	73%	34301	86%	**15	100%
Accurate Solo 1250	<<locked>>	79%	35056	88%	**78	100%
[Accurate TCM]*	<<locked>>	83%	34403	86%	**29	88%
[Alliant 2400]*	<<locked>>	96%	35708	90%	**78	84%
Alliant BULLSEYE	<<locked>>	69%	34983	88%	**43	100%
Alliant POWER PISTOL	<<locked>>	78%	34214	86%	**29	98%
Alliant UNIQUE	<<locked>>	79%	35085	88%	**53	100%
Baschieri & Pellagri 100	<<locked>>	74%	34577	87%	**22	100%
Hodgdon Clays	<<locked>>	69%	33866	85%	**24	100%
Hodgdon HS-6	<<locked>>	65%	35520	89%	**86	100%
Hodgdon Universal	<<locked>>	73%	35346	89%	**98	100%
Hodgdon TrailBoss	<<locked>>	96%	14939	37%	**0	100%
Lovex D037.1	<<locked>>	76%	35694	89%	**62	93%
[Lovex D037.2]*	<<locked>>	82%	34534	87%	**35	86%
Lovex S011	<<locked>>	64%	35592	89%	**55	100%
Lovex S020	<<locked>>	70%	33823	85%	**01	100%
Maxam CSB 1	<<locked>>	82%	34693	87%	**68	100%
Maxam CSB 2	<<locked>>	78%	34766	87%	**75	100%
Maxam CSB 3	<<locked>>	77%	35114	88%	**52	100%
Maxam CSB 4	<<locked>>	75%	35853	90%	**42	100%
Maxam CSB 5	<<locked>>	71%	35723	90%	**93	100%
[Ramshot Enforcer]*	<<locked>>	96%	35259	88%	**81	85%
Ramshot Silhouette	<<locked>>	66%	35578	89%	**53	100%
ReloadSwiss RS 12	<<locked>>	67%	33997	85%	**52	100%
ReloadSwiss RS 14	<<locked>>	96%	13373	34%	**0	100%
ReloadSwiss RS 20	<<locked>>	81%	35882	90%	**50	100%
ReloadSwiss RS 24	<<locked>>	81%	34374	86%	**39	95%
Rottweil P 801	<<locked>>	63%	34374	86%	**29	100%
Rottweil P 806	<<locked>>	86%	34461	86%	**58	100%
SNPE Vectan A0	<<locked>>	82%	35186	88%	**07	100%
SNPE Vectan BA 9	<<locked>>	75%	35737	90%	**88	100%
SNPE Vectan BA10	<<locked>>	69%	35375	89%	**63	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	87%	35056	88%	**63	100%
SNPE Vectan BA9 1/2	<<locked>>	76%	35839	90%	**98	100%
[Shooters World Heavy Pistol]*	<<locked>>	82%	34534	87%	**35	86%
Shooters World Major Pistol	<<locked>>	76%	35694	89%	**62	93%
Somchem MP200	<<locked>>	72%	34330	86%	**34	100%
Somchem MS200	<<locked>>	77%	35012	88%	**17	100%
Somchem S221	<<locked>>	69%	35172	88%	**22	97%
Vihtavuori 3N37 👍	<<locked>>	80%	35070	88%	**86	100%
Vihtavuori 3N38	<<locked>>	92%	34534	87%	**32	95%
Vihtavuori N105	<<locked>>	97%	31401	79%	**35	98%
Vihtavuori N320	<<locked>>	72%	35288	88%	**38	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	33199	83%	**53	100%
Vihtavuori N330	<<locked>>	73%	34447	86%	**88	100%
Vihtavuori N340	<<locked>>	77%	34418	86%	**14	100%
Vihtavuori N350 👍	<<locked>>	83%	34853	87%	**80	100%
Winchester 231	<<locked>>	63%	35665	89%	**75	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	13721	34%	**9	86%
ADI AP 70N	<<locked>>	61%	30647	77%	**42	100%
ADI AS 30	<<locked>>	62%	25019	63%	**8	100%
ADI AS 50N	<<locked>>	61%	26716	67%	**40	100%
Accurate No. 2	<<locked>>	61%	24047	60%	**73	100%
[Accurate No. 7]*	<<locked>>	61%	20102	50%	**06	83%
[Accurate No. 9]*	<<locked>>	75%	25672	64%	**01	81%
Accurate Solo 1000	<<locked>>	61%	25121	63%	**04	100%
Accurate Solo 1250	<<locked>>	61%	21132	53%	**04	100%
[Accurate TCM]*	<<locked>>	73%	23743	60%	**68	81%
[Alliant 2400]*	<<locked>>	90%	29979	75%	**93	81%
Alliant BULLSEYE	<<locked>>	61%	27731	70%	**48	100%
Alliant POWER PISTOL	<<locked>>	61%	20262	51%	**96	92%
Alliant UNIQUE	<<locked>>	61%	20798	52%	**47	100%
Baschieri & Pellagri 100	<<locked>>	61%	23656	59%	**7	100%
Hodgdon Clays	<<locked>>	61%	27746	70%	**1	100%
Hodgdon HS-6	<<locked>>	61%	30676	77%	**27	100%
Hodgdon Universal	<<locked>>	61%	24801	62%	**66	100%
Hodgdon TrailBoss	<<locked>>	69%	8340	21%	**6	100%
[Lovex D037.1]*	<<locked>>	61%	20102	50%	**06	83%
[Lovex D037.2]*	<<locked>>	74%	25077	63%	**88	80%
Lovex S011	<<locked>>	61%	31502	79%	**09	100%
Lovex S020	<<locked>>	61%	24918	62%	**86	100%
Maxam CSB 1	<<locked>>	62%	20233	51%	**8	100%
Maxam CSB 2	<<locked>>	61%	21132	53%	**04	100%
Maxam CSB 3	<<locked>>	61%	22931	57%	**01	100%
Maxam CSB 4	<<locked>>	61%	24714	62%	**07	100%
Maxam CSB 5	<<locked>>	61%	27630	69%	**04	100%
[Ramshot Enforcer]*	<<locked>>	90%	27862	70%	**70	80%
Ramshot Silhouette	<<locked>>	61%	30545	77%	**94	100%
ReloadSwiss RS 12	<<locked>>	61%	28514	72%	**93	100%
ReloadSwiss RS 14	<<locked>>	69%	7600	19%	**3	100%
ReloadSwiss RS 20	<<locked>>	61%	19754	50%	**30	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	18057	45%	**40	83%
Rottweil P 801	<<locked>>	61%	32387	81%	**02	100%
Rottweil P 806	<<locked>>	61%	13402	34%	**8	91%
SNPE Vectan A0	<<locked>>	61%	19899	50%	**7	100%
SNPE Vectan BA 9	<<locked>>	61%	24323	61%	**47	100%
SNPE Vectan BA10	<<locked>>	62%	29559	74%	**4	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	16911	42%	**1	95%
SNPE Vectan BA9 1/2	<<locked>>	61%	23946	60%	**47	100%
[Shooters World Heavy Pistol]*	<<locked>>	74%	25077	63%	**88	80%
[Shooters World Major Pistol]*	<<locked>>	61%	20102	50%	**06	83%
Somchem MP200	<<locked>>	61%	24743	62%	**02	100%
Somchem MS200	<<locked>>	61%	22089	55%	**47	100%
Somchem S221	<<locked>>	61%	26731	67%	**01	94%
Vihtavuori 3N37	<<locked>>	61%	19218	48%	**43	98%
[Vihtavuori 3N38]*	<<locked>>	66%	15229	38%	**1	81%
[Vihtavuori N105]*	<<locked>>	69%	12908	32%	**8	81%
Vihtavuori N320	<<locked>>	61%	25454	64%	**27	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	14460	36%	**7	100%
Vihtavuori N330	<<locked>>	61%	23641	59%	**56	100%
Vihtavuori N340	<<locked>>	61%	21263	53%	**40	100%
Vihtavuori N350	<<locked>>	61%	17506	44%	**04	97%
Winchester 231	<<locked>>	61%	33808	85%	**55	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