Load data for .450 Rigby + .458 | 300gr | H&N TC H

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.458 \| 300gr \| H&N TC H
Bullet Weight:	300gr \| 19.4g
Bullet Diameter:	0.458" \| 11.63mm
Bullet Length:	<<locked>>
Caliber:	.450 Rigby load data
Case Length (l3):	2.902" \| 73.7mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	133.0 Grains of Water \| 8.64 cm³
Primer Size:	Large Rifle Magnum (LRM)
Max. allowed Pressure:	58015 psi \| 4000 bar
LID:	LID_B7551_C768
Last updated:	2026-04-03

Load data for 166 loads in caliber .450 Rigby with .458 | 300gr | H&N TC H bullet and 83 powder(s). 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)
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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.
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 2206H	<<locked>>	96%	51996	90%	**72	97%
ADI AR 2207	<<locked>>	84%	52011	90%	**61	100%
ADI AR 2208	<<locked>>	97%	45774	79%	**31	95%
ADI AR 2219	<<locked>>	87%	52141	90%	**59	100%
ADI Benchmark 8208	<<locked>>	94%	52040	90%	**49	98%
Accurate 2015	<<locked>>	92%	51982	90%	**04	100%
Accurate 2200	<<locked>>	93%	52214	90%	**30	95%
Accurate 2230	<<locked>>	89%	51619	89%	**20	98%
Accurate 2460	<<locked>>	90%	51822	89%	**36	99%
Accurate 2495 👍	<<locked>>	97%	52156	90%	**95	100%
Accurate 2520 👍	<<locked>>	95%	52083	90%	**86	99%
Accurate 4064	<<locked>>	97%	43018	74%	**41	99%
Alliant AR-Comp	<<locked>>	95%	51880	89%	**72	100%
Alliant Power Pro 2000-MR	<<locked>>	97%	50676	87%	**35	95%
Alliant Reloder- TS 15.5	<<locked>>	97%	43540	75%	**44	96%
Alliant Reloder-10x	<<locked>>	89%	51967	90%	**20	100%
Alliant Reloder-15	<<locked>>	97%	48008	83%	**30	96%
[Alliant Reloder-17]*	<<locked>>	97%	38943	67%	**99	93%
Alliant Reloder-7	<<locked>>	83%	52112	90%	**64	100%
Baschieri & Pellagri 106	<<locked>>	87%	51866	89%	**44	100%
Baschieri & Pellagri 107	<<locked>>	96%	51822	89%	**79	96%
Bofors RP3	<<locked>>	97%	42946	74%	**44	96%
Hodgdon BL-C2	<<locked>>	94%	52025	90%	**02	98%
Hodgdon Benchmark	<<locked>>	92%	52127	90%	**00	99%
Hodgdon CFE223	<<locked>>	97%	47369	82%	**36	95%
Hodgdon H322	<<locked>>	92%	52141	90%	**59	100%
Hodgdon H335	<<locked>>	87%	52025	90%	**66	100%
[Hodgdon H380]*	<<locked>>	97%	45629	79%	**61	93%
Hodgdon H4198	<<locked>>	85%	52083	90%	**61	100%
Hodgdon H4895	<<locked>>	95%	51895	89%	**82	98%
Hodgdon VARGET	<<locked>>	97%	45136	78%	**25	95%
Hodgdon TrailBoss	<<locked>>	97%	31691	55%	**72	100%
IMR 3031	<<locked>>	97%	47036	81%	**36	100%
IMR 4064	<<locked>>	97%	44092	76%	**99	95%
IMR 4198	<<locked>>	88%	51822	89%	**77	100%
IMR 4895	<<locked>>	97%	49298	85%	**63	97%
IMR 8208 XBR	<<locked>>	94%	52040	90%	**49	98%
Lovex D073.4	<<locked>>	89%	52069	90%	**27	99%
Lovex D073.5	<<locked>>	90%	51822	89%	**36	99%
Lovex D073.6	<<locked>>	97%	52098	90%	**82	99%
Lovex S060	<<locked>>	95%	52011	90%	**00	97%
Lovex S062	<<locked>>	97%	46369	80%	**64	97%
Norma 200	<<locked>>	85%	51895	89%	**94	100%
Norma 201	<<locked>>	97%	51779	89%	**49	98%
Norma 202 👍	<<locked>>	96%	52156	90%	**69	100%
Norma 203B	<<locked>>	97%	47123	81%	**10	96%
Ramshot Big Game	<<locked>>	97%	47718	82%	**33	96%
[Ramshot TAC]*	<<locked>>	93%	52214	90%	**36	94%
Ramshot Wild Boar	<<locked>>	94%	51822	89%	**79	97%
Ramshot X-Terminator	<<locked>>	91%	51837	89%	**17	97%
ReloadSwiss RS 14	<<locked>>	96%	31502	54%	**11	100%
ReloadSwiss RS 40	<<locked>>	90%	51808	89%	**40	99%
[ReloadSwiss RS 50]*	<<locked>>	97%	46847	81%	**44	91%
ReloadSwiss RS 52	<<locked>>	97%	50720	87%	**41	96%
ReloadSwiss RS 60	<<locked>>	97%	41771	72%	**84	97%
Rottweil R 901	<<locked>>	94%	51721	89%	**30	100%
Rottweil R 902	<<locked>>	97%	49081	85%	**90	98%
Rottweil R 903	<<locked>>	97%	39523	68%	**69	95%
SNPE Vectan BA6 1/2	<<locked>>	83%	51967	90%	**08	100%
SNPE Vectan SP 10	<<locked>>	86%	52199	90%	**56	100%
SNPE Vectan SP 11	<<locked>>	97%	42960	74%	**41	95%
SNPE Vectan SP 7	<<locked>>	95%	52199	90%	**40	95%
SNPE Vectan SP 9	<<locked>>	96%	52054	90%	**72	97%
SNPE Vectan Tubal 3000	<<locked>>	95%	51808	89%	**74	100%
SNPE Vectan Tubal 5000	<<locked>>	97%	45208	78%	**69	100%
Shooters World Match Rifle	<<locked>>	97%	52098	90%	**82	99%
Shooters World Precision	<<locked>>	97%	46369	80%	**64	97%
Shooters World Tactical Rifle	<<locked>>	88%	52069	90%	**04	98%
Somchem S321 👍	<<locked>>	91%	52025	90%	**66	99%
Somchem S335	<<locked>>	96%	52185	90%	**90	100%
Somchem S341	<<locked>>	95%	52199	90%	**49	97%
Somchem S355	<<locked>>	97%	41307	71%	**82	95%
Vihtavuori N120	<<locked>>	86%	51866	89%	**08	100%
Vihtavuori N130	<<locked>>	92%	52141	90%	**67	100%
Vihtavuori N133	<<locked>>	97%	50879	88%	**61	100%
Vihtavuori N135	<<locked>>	97%	39262	68%	**33	100%
Vihtavuori N140	<<locked>>	97%	48965	84%	**87	100%
[Vihtavuori N150]*	<<locked>>	97%	34505	59%	**08	94%
Vihtavuori N530	<<locked>>	92%	52098	90%	**59	98%
Vihtavuori N540	<<locked>>	97%	48979	84%	**13	99%
[Winchester 6.5 StaBALL]*	<<locked>>	97%	36898	64%	**35	93%
Winchester 748 👍	<<locked>>	92%	51924	90%	**09	99%
Winchester StaBALL Match	<<locked>>	89%	52011	90%	**82	98%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	81%	31865	55%	**49	90%
ADI AR 2207	<<locked>>	81%	47514	82%	**92	100%
[ADI AR 2208]*	<<locked>>	87%	33402	58%	**62	90%
ADI AR 2219	<<locked>>	81%	42815	74%	**95	99%
[ADI Benchmark 8208]*	<<locked>>	81%	34026	59%	**79	93%
Accurate 2015	<<locked>>	81%	36143	62%	**18	99%
[Accurate 2200]*	<<locked>>	82%	35969	62%	**98	90%
[Accurate 2230]*	<<locked>>	81%	37869	65%	**61	94%
Accurate 2460	<<locked>>	81%	37579	65%	**74	96%
Accurate 2495	<<locked>>	81%	29399	51%	**43	98%
Accurate 2520	<<locked>>	81%	31314	54%	**66	95%
[Accurate 4064]*	<<locked>>	81%	24598	42%	**88	93%
Alliant AR-Comp	<<locked>>	81%	31894	55%	**08	100%
[Alliant Power Pro 2000-MR]*	<<locked>>	88%	37115	64%	**40	90%
[Alliant Reloder- TS 15.5]*	<<locked>>	84%	28674	49%	**87	90%
Alliant Reloder-10x	<<locked>>	81%	39929	69%	**10	100%
[Alliant Reloder-15]*	<<locked>>	86%	32837	57%	**89	90%
[Alliant Reloder-17]*	<<locked>>	92%	33359	57%	**38	90%
Alliant Reloder-7	<<locked>>	81%	48588	84%	**12	100%
Baschieri & Pellagri 106	<<locked>>	81%	42960	74%	**00	100%
[Baschieri & Pellagri 107]*	<<locked>>	84%	35114	61%	**38	90%
[Bofors RP3]*	<<locked>>	85%	28340	49%	**90	90%
[Hodgdon BL-C2]*	<<locked>>	81%	31778	55%	**79	92%
Hodgdon Benchmark	<<locked>>	81%	36506	63%	**98	95%
[Hodgdon CFE223]*	<<locked>>	89%	36114	62%	**84	90%
Hodgdon H322	<<locked>>	81%	35839	62%	**51	98%
Hodgdon H335	<<locked>>	81%	42076	73%	**85	99%
[Hodgdon H380]*	<<locked>>	91%	36666	63%	**74	90%
Hodgdon H4198	<<locked>>	81%	46079	79%	**56	99%
[Hodgdon H4895]*	<<locked>>	81%	31966	55%	**56	91%
[Hodgdon VARGET]*	<<locked>>	87%	33402	58%	**62	90%
Hodgdon TrailBoss	<<locked>>	81%	24845	43%	**24	100%
IMR 3031	<<locked>>	81%	27673	48%	**93	96%
[IMR 4064]*	<<locked>>	87%	32561	56%	**36	90%
IMR 4198	<<locked>>	81%	41698	72%	**07	100%
[IMR 4895]*	<<locked>>	84%	31183	54%	**59	90%
[IMR 8208 XBR]*	<<locked>>	81%	34026	59%	**79	93%
Lovex D073.4	<<locked>>	81%	39276	68%	**94	96%
Lovex D073.5	<<locked>>	81%	37101	64%	**64	96%
[Lovex D073.6]*	<<locked>>	81%	29240	50%	**10	94%
[Lovex S060]*	<<locked>>	81%	33547	58%	**16	91%
[Lovex S062]*	<<locked>>	81%	27543	47%	**18	90%
Norma 200	<<locked>>	81%	45049	78%	**85	100%
[Norma 201]*	<<locked>>	81%	30879	53%	**07	92%
Norma 202	<<locked>>	81%	30864	53%	**26	95%
[Norma 203B]*	<<locked>>	85%	31198	54%	**56	90%
[Ramshot Big Game]*	<<locked>>	86%	32750	56%	**98	90%
[Ramshot TAC]*	<<locked>>	85%	39218	68%	**84	90%
[Ramshot Wild Boar]*	<<locked>>	81%	32677	56%	**79	91%
[Ramshot X-Terminator]*	<<locked>>	81%	37318	64%	**31	93%
ReloadSwiss RS 14	<<locked>>	81%	24714	43%	**60	100%
ReloadSwiss RS 40	<<locked>>	81%	38508	66%	**87	97%
[ReloadSwiss RS 50]*	<<locked>>	94%	42931	74%	**69	90%
[ReloadSwiss RS 52]*	<<locked>>	86%	33808	58%	**67	90%
[ReloadSwiss RS 60]*	<<locked>>	86%	28950	50%	**16	90%
Rottweil R 901	<<locked>>	81%	33953	59%	**75	96%
[Rottweil R 902]*	<<locked>>	81%	29196	50%	**44	91%
[Rottweil R 903]*	<<locked>>	88%	29240	50%	**13	90%
SNPE Vectan BA6 1/2	<<locked>>	81%	48849	84%	**66	100%
SNPE Vectan SP 10	<<locked>>	81%	43163	74%	**99	99%
[SNPE Vectan SP 11]*	<<locked>>	89%	32634	56%	**95	90%
[SNPE Vectan SP 7]*	<<locked>>	86%	37173	64%	**54	90%
[SNPE Vectan SP 9]*	<<locked>>	82%	31502	54%	**30	90%
SNPE Vectan Tubal 3000	<<locked>>	81%	33228	57%	**10	96%
SNPE Vectan Tubal 5000	<<locked>>	81%	26745	46%	**49	95%
[Shooters World Match Rifle]*	<<locked>>	81%	29240	50%	**10	94%
[Shooters World Precision]*	<<locked>>	81%	27543	47%	**18	90%
Shooters World Tactical Rifle	<<locked>>	81%	40915	71%	**00	95%
Somchem S321	<<locked>>	81%	36071	62%	**54	95%
Somchem S335	<<locked>>	81%	32445	56%	**03	97%
[Somchem S341]*	<<locked>>	81%	31749	55%	**26	90%
[Somchem S355]*	<<locked>>	87%	29849	51%	**07	90%
Vihtavuori N120	<<locked>>	81%	44556	77%	**00	100%
Vihtavuori N130	<<locked>>	81%	37202	64%	**05	100%
Vihtavuori N133	<<locked>>	81%	30980	53%	**74	98%
[Vihtavuori N135]*	<<locked>>	81%	23250	40%	**13	94%
Vihtavuori N140	<<locked>>	81%	28790	50%	**57	95%
[Vihtavuori N150]*	<<locked>>	89%	26513	46%	**95	90%
[Vihtavuori N530]*	<<locked>>	81%	35694	62%	**41	94%
[Vihtavuori N540]*	<<locked>>	81%	28485	49%	**61	94%
[Winchester 6.5 StaBALL]*	<<locked>>	93%	32576	56%	**20	90%
Winchester 748	<<locked>>	81%	35056	60%	**67	95%
[Winchester StaBALL Match]*	<<locked>>	81%	37521	65%	**07	94%

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