Load data for .450 N.E. 3 1/4'' + .458 | 450gr | Woodleigh HS

Recommended Powder(s): Bofors RP3, ReloadSwiss RS 60, Somchem S365

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.458 \| 450gr \| Woodleigh HS
Manufacturer SKU:	H458A
Bullet Weight:	450gr \| 29.2g
Bullet Diameter:	0.458" \| 11.63mm
Bullet Length:	<<locked>>
Caliber:	.450 N.E. 3 1/4'' load data
Case Length (l3):	3.250" \| 82.5mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	136.0 Grains of Water \| 8.83 cm³
Primer Size:	Large Rifle Magnum (LRM)
Max. allowed Pressure:	44237 psi \| 3050 bar
LID:	LID_B12057_C765
Last updated:	2026-01-21

Load data for 114 loads in caliber .450 N.E. 3 1/4'' with .458 | 450gr | Woodleigh HS bullet and 57 powders such as Bofors RP3, ReloadSwiss RS 60, Somchem S365. 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".

Go to the bottom of the "Dashboard " page to set the measure system (imperial vs. metric)
No data yet
C.O.L. (Inch)
C.O.L. (mm)
We recommend you limit powder range to relevant brands to speed up re-calculation of results
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.
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 AR 2208	<<locked>>	86%	39668	90%	**65	97%
[Accurate 2700]*	<<locked>>	87%	39711	90%	**13	92%
Accurate 4064	<<locked>>	86%	39624	90%	**95	100%
Accurate 4350	<<locked>>	96%	39639	90%	**57	96%
Alliant Power Pro 2000-MR	<<locked>>	84%	39523	89%	**64	97%
Alliant Reloder- TS 15.5	<<locked>>	87%	39436	89%	**98	98%
Alliant Reloder-15	<<locked>>	85%	39523	89%	**95	97%
Alliant Reloder-16	<<locked>>	95%	39392	89%	**41	96%
Alliant Reloder-17	<<locked>>	91%	39624	90%	**80	98%
[Alliant Reloder-23]*	<<locked>>	97%	29559	67%	**54	94%
Bofors RP3 👍	<<locked>>	88%	39711	90%	**18	99%
[Bofors RP7]*	<<locked>>	90%	39653	90%	**49	92%
Hodgdon CFE223	<<locked>>	86%	39784	90%	**38	96%
Hodgdon H380	<<locked>>	86%	39494	89%	**88	96%
[Hodgdon H414]*	<<locked>>	90%	39595	90%	**31	93%
[Hodgdon H4350]*	<<locked>>	96%	39813	90%	**78	92%
Hodgdon Hybrid 100V	<<locked>>	97%	37753	85%	**88	98%
Hodgdon LVR	<<locked>>	92%	39668	90%	**28	95%
Hodgdon VARGET	<<locked>>	87%	39668	90%	**65	97%
IMR 3031	<<locked>>	84%	39711	90%	**05	100%
IMR 4064	<<locked>>	87%	39465	89%	**56	97%
[IMR 4166 Enduron]*	<<locked>>	87%	39508	89%	**19	93%
[IMR 4350]*	<<locked>>	94%	39610	90%	**72	92%
[IMR 4451 Enduron]*	<<locked>>	89%	39769	90%	**56	93%
IMR 4831	<<locked>>	97%	35273	80%	**59	95%
IMR 4895	<<locked>>	84%	39668	90%	**15	98%
Lovex S062	<<locked>>	85%	39610	90%	**72	99%
Lovex S065	<<locked>>	91%	39566	89%	**69	95%
[Lovex S070]*	<<locked>>	93%	39697	90%	**85	93%
Norma 203B	<<locked>>	85%	39581	89%	**01	98%
Norma URP	<<locked>>	95%	39639	90%	**41	96%
Ramshot Big Game	<<locked>>	85%	39552	89%	**21	97%
[Ramshot Hunter]*	<<locked>>	96%	39639	90%	**38	94%
[ReloadSwiss RS 50]*	<<locked>>	86%	39624	90%	**62	94%
ReloadSwiss RS 52	<<locked>>	84%	39682	90%	**57	97%
ReloadSwiss RS 60 👍	<<locked>>	89%	39421	89%	**83	100%
ReloadSwiss RS 62	<<locked>>	96%	39537	89%	**70	96%
ReloadSwiss RS 70	<<locked>>	95%	39697	90%	**57	95%
Rottweil R 902	<<locked>>	83%	39711	90%	**52	99%
Rottweil R 903	<<locked>>	89%	39479	89%	**05	98%
[Rottweil R 907]*	<<locked>>	90%	39653	90%	**49	92%
SNPE Vectan SP 11	<<locked>>	88%	39392	89%	**21	97%
SNPE Vectan Tubal 5000	<<locked>>	87%	39740	90%	**10	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	92%	39508	89%	**36	93%
Shooters World Long Rifle	<<locked>>	91%	39566	89%	**69	95%
Shooters World Precision	<<locked>>	85%	39610	90%	**72	99%
Somchem S355	<<locked>>	88%	39595	90%	**92	98%
Somchem S365 👍	<<locked>>	97%	36985	84%	**34	99%
Vihtavuori N135	<<locked>>	90%	39595	89%	**59	100%
Vihtavuori N140	<<locked>>	84%	39740	90%	**56	100%
Vihtavuori N150	<<locked>>	94%	39523	89%	**72	99%
Vihtavuori N160	<<locked>>	92%	39726	90%	**05	96%
Vihtavuori N540	<<locked>>	84%	39639	90%	**75	100%
Vihtavuori N550	<<locked>>	92%	39523	89%	**41	96%
[Vihtavuori N555]*	<<locked>>	97%	30719	69%	**13	94%
Winchester 6.5 StaBALL	<<locked>>	93%	39784	90%	**88	98%
[Winchester 760]*	<<locked>>	90%	39595	90%	**31	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2208	<<locked>>	81%	33823	76%	**54	95%
[Accurate 2700]*	<<locked>>	85%	36172	82%	**51	90%
Accurate 4064	<<locked>>	81%	33547	76%	**87	99%
[Accurate 4350]*	<<locked>>	83%	25585	58%	**52	90%
Alliant Power Pro 2000-MR	<<locked>>	81%	35563	80%	**85	95%
Alliant Reloder- TS 15.5	<<locked>>	81%	32822	74%	**70	97%
Alliant Reloder-15	<<locked>>	81%	35346	80%	**16	96%
[Alliant Reloder-16]*	<<locked>>	83%	27615	62%	**65	90%
[Alliant Reloder-17]*	<<locked>>	81%	28369	64%	**21	93%
[Alliant Reloder-23]*	<<locked>>	91%	25063	57%	**26	90%
Bofors RP3	<<locked>>	81%	31865	72%	**64	97%
[Bofors RP7]*	<<locked>>	86%	35056	79%	**64	90%
[Hodgdon CFE223]*	<<locked>>	81%	33649	76%	**16	94%
[Hodgdon H380]*	<<locked>>	81%	33228	75%	**67	93%
[Hodgdon H414]*	<<locked>>	85%	33823	76%	**16	90%
[Hodgdon H4350]*	<<locked>>	93%	36114	82%	**06	90%
[Hodgdon Hybrid 100V]*	<<locked>>	81%	23467	53%	**44	90%
[Hodgdon LVR]*	<<locked>>	82%	28224	64%	**82	90%
Hodgdon VARGET	<<locked>>	81%	33533	76%	**44	95%
IMR 3031	<<locked>>	81%	35708	81%	**39	100%
IMR 4064	<<locked>>	81%	33054	75%	**31	95%
[IMR 4166 Enduron]*	<<locked>>	81%	33417	76%	**98	90%
[IMR 4350]*	<<locked>>	91%	35650	81%	**96	90%
[IMR 4451 Enduron]*	<<locked>>	83%	33634	76%	**34	90%
[IMR 4831]*	<<locked>>	87%	26179	59%	**42	90%
IMR 4895	<<locked>>	81%	36201	82%	**49	97%
Lovex S062	<<locked>>	81%	35012	79%	**83	98%
[Lovex S065]*	<<locked>>	82%	29414	66%	**59	90%
[Lovex S070]*	<<locked>>	87%	32518	74%	**47	90%
Norma 203B	<<locked>>	81%	34867	79%	**13	96%
[Norma URP]*	<<locked>>	83%	26571	60%	**52	90%
Ramshot Big Game	<<locked>>	81%	34287	78%	**16	96%
[Ramshot Hunter]*	<<locked>>	89%	31865	72%	**73	90%
[ReloadSwiss RS 50]*	<<locked>>	81%	33895	77%	**57	91%
ReloadSwiss RS 52	<<locked>>	81%	36564	83%	**98	96%
ReloadSwiss RS 60	<<locked>>	81%	30197	68%	**80	97%
[ReloadSwiss RS 62]*	<<locked>>	85%	27514	62%	**01	90%
[ReloadSwiss RS 70]*	<<locked>>	88%	31082	70%	**67	90%
Rottweil R 902	<<locked>>	81%	37101	84%	**03	98%
Rottweil R 903	<<locked>>	81%	30139	68%	**21	95%
[Rottweil R 907]*	<<locked>>	86%	35056	79%	**64	90%
SNPE Vectan SP 11	<<locked>>	81%	31415	71%	**60	95%
SNPE Vectan Tubal 5000	<<locked>>	81%	33272	75%	**98	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	86%	32227	73%	**01	90%
[Shooters World Long Rifle]*	<<locked>>	82%	29414	66%	**59	90%
Shooters World Precision	<<locked>>	81%	35012	79%	**83	98%
Somchem S355	<<locked>>	81%	31372	71%	**31	96%
[Somchem S365]*	<<locked>>	81%	22626	51%	**67	91%
Vihtavuori N135	<<locked>>	81%	30385	69%	**91	100%
Vihtavuori N140	<<locked>>	81%	36289	82%	**90	100%
Vihtavuori N150	<<locked>>	81%	26629	60%	**09	95%
[Vihtavuori N160]*	<<locked>>	81%	27427	62%	**42	90%
Vihtavuori N540	<<locked>>	81%	35810	81%	**06	99%
[Vihtavuori N550]*	<<locked>>	81%	27557	62%	**82	91%
[Vihtavuori N555]*	<<locked>>	90%	25092	57%	**65	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	26832	61%	**06	93%
[Winchester 760]*	<<locked>>	85%	33823	76%	**16	90%

Start Load - Barrel Length: 23.60''

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