Load data for .458 Lott + .458 | 270gr | Atomic 29 FNHP

Recommended Powder(s): Alliant Reloder-10x, Baschieri & Pellagri 106, Hodgdon H4198, IMR 4198, Norma 200

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.458 \| 270gr \| Atomic 29 FNHP
Bullet Weight:	270gr \| 17.5g
Bullet Diameter:	0.458" \| 11.63mm
Bullet Length:	<<locked>>
Caliber:	.458 Lott load data
Case Length (l3):	2.800" \| 71.1mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	110.0 Grains of Water \| 7.14 cm³
Primer Size:	Large Rifle Magnum (LRM)
Max. allowed Pressure:	62366 psi \| 4300 bar
LID:	LID_B12245_C790
Last updated:	2026-02-07

Load data for 108 loads in caliber .458 Lott with .458 | 270gr | Atomic 29 FNHP bullet and 54 powders such as Alliant Reloder-10x, Baschieri & Pellagri 106, Hodgdon H4198, IMR 4198, Norma 200. 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 AR 2207	<<locked>>	94%	55738	89%	**63	100%
ADI AR 2219	<<locked>>	97%	55840	90%	**35	99%
Accurate 1680	<<locked>>	85%	55593	89%	**40	99%
Accurate 2015	<<locked>>	97%	46050	74%	**38	99%
[Accurate 2230]*	<<locked>>	97%	51503	83%	**07	94%
Accurate 2460	<<locked>>	97%	49530	79%	**97	96%
Accurate 2495	<<locked>>	97%	37536	60%	**69	98%
[Accurate 2520]*	<<locked>>	97%	40292	65%	**89	94%
[Accurate 4064]*	<<locked>>	97%	30951	50%	**98	92%
Alliant AR-Comp	<<locked>>	97%	40814	65%	**25	100%
Alliant Reloder-10x 👍	<<locked>>	97%	51213	82%	**43	100%
Alliant Reloder-7	<<locked>>	93%	55869	90%	**43	100%
Baschieri & Pellagri 106 👍	<<locked>>	96%	55550	89%	**04	99%
[Hodgdon BL-C2]*	<<locked>>	97%	41974	67%	**18	92%
Hodgdon Benchmark	<<locked>>	97%	47529	76%	**18	95%
Hodgdon CFE BLK	<<locked>>	92%	55709	89%	**04	96%
Hodgdon H322	<<locked>>	97%	46050	74%	**71	98%
Hodgdon H335	<<locked>>	97%	55767	89%	**31	98%
Hodgdon H4198 👍	<<locked>>	95%	55854	90%	**20	99%
Hodgdon TrailBoss	<<locked>>	96%	30211	48%	**39	100%
IMR 3031	<<locked>>	97%	35186	56%	**00	95%
IMR 4198 👍	<<locked>>	97%	52591	84%	**13	100%
IMR 4227	<<locked>>	88%	56014	90%	**94	100%
[IMR 8208 XBR]*	<<locked>>	97%	44005	71%	**95	93%
Lovex D073.4	<<locked>>	97%	52808	85%	**36	96%
Lovex D073.5	<<locked>>	97%	49211	79%	**94	96%
[Lovex D073.6]*	<<locked>>	97%	37304	60%	**23	93%
Lovex S053	<<locked>>	89%	55506	89%	**54	100%
Norma 200 👍	<<locked>>	96%	56014	90%	**92	100%
[Norma 201]*	<<locked>>	97%	39914	64%	**20	92%
Norma 202	<<locked>>	97%	39494	63%	**43	95%
[Ramshot X-Terminator]*	<<locked>>	97%	49588	80%	**61	92%
ReloadSwiss RS 14	<<locked>>	97%	30269	49%	**85	100%
ReloadSwiss RS 36	<<locked>>	88%	55666	89%	**23	100%
ReloadSwiss RS 40	<<locked>>	97%	49937	80%	**13	96%
Rottweil R 901	<<locked>>	97%	43540	70%	**89	96%
SNPE Vectan BA6 1/2	<<locked>>	93%	55941	90%	**97	100%
SNPE Vectan SP 10	<<locked>>	97%	55970	90%	**31	98%
SNPE Vectan Tubal 3000	<<locked>>	97%	43468	70%	**20	96%
[SNPE Vectan Tubal 5000]*	<<locked>>	97%	34766	56%	**56	94%
[Shooters World Match Rifle]*	<<locked>>	97%	37304	60%	**23	93%
Shooters World Tactical Rifle	<<locked>>	97%	55695	89%	**43	95%
[Somchem S321]*	<<locked>>	97%	47413	76%	**90	94%
Somchem S335	<<locked>>	97%	41887	67%	**26	97%
Vihtavuori N110	<<locked>>	84%	56043	90%	**82	100%
Vihtavuori N120	<<locked>>	97%	56057	90%	**13	100%
Vihtavuori N130	<<locked>>	97%	47703	76%	**22	100%
Vihtavuori N133	<<locked>>	97%	39073	63%	**67	97%
[Vihtavuori N135]*	<<locked>>	97%	29385	47%	**03	93%
[Vihtavuori N140]*	<<locked>>	97%	36753	59%	**54	94%
[Vihtavuori N530]*	<<locked>>	97%	46731	75%	**64	94%
[Vihtavuori N540]*	<<locked>>	97%	36811	59%	**80	94%
[Winchester 748]*	<<locked>>	97%	46137	74%	**94	94%
[Winchester StaBALL Match]*	<<locked>>	97%	50937	82%	**56	94%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2207	<<locked>>	81%	37333	60%	**51	100%
[ADI AR 2219]*	<<locked>>	81%	33011	53%	**82	93%
Accurate 1680	<<locked>>	81%	48138	77%	**18	99%
[Accurate 2015]*	<<locked>>	81%	28239	45%	**38	94%
[Accurate 2230]*	<<locked>>	89%	38595	62%	**71	90%
[Accurate 2460]*	<<locked>>	85%	33127	53%	**72	90%
[Accurate 2495]*	<<locked>>	82%	22118	35%	**43	90%
[Accurate 2520]*	<<locked>>	89%	31096	50%	**69	90%
[Accurate 4064]*	<<locked>>	93%	27456	44%	**97	90%
[Alliant AR-Comp]*	<<locked>>	81%	24874	40%	**92	94%
Alliant Reloder-10x	<<locked>>	81%	31270	50%	**36	97%
Alliant Reloder-7	<<locked>>	81%	38870	62%	**54	99%
Baschieri & Pellagri 106	<<locked>>	81%	33982	54%	**16	95%
[Hodgdon BL-C2]*	<<locked>>	94%	37927	61%	**26	90%
[Hodgdon Benchmark]*	<<locked>>	86%	34461	55%	**46	90%
[Hodgdon CFE BLK]*	<<locked>>	81%	38421	62%	**89	91%
[Hodgdon H322]*	<<locked>>	81%	28166	45%	**48	91%
[Hodgdon H335]*	<<locked>>	81%	32300	52%	**66	92%
Hodgdon H4198	<<locked>>	81%	37231	60%	**75	95%
Hodgdon TrailBoss	<<locked>>	87%	26092	42%	**47	100%
[IMR 3031]*	<<locked>>	87%	26020	42%	**31	90%
IMR 4198	<<locked>>	81%	33402	54%	**46	98%
IMR 4227	<<locked>>	81%	45208	72%	**26	100%
[IMR 8208 XBR]*	<<locked>>	91%	36680	59%	**44	90%
[Lovex D073.4]*	<<locked>>	84%	33852	54%	**69	90%
[Lovex D073.5]*	<<locked>>	86%	33127	53%	**72	90%
[Lovex D073.6]*	<<locked>>	91%	31096	50%	**69	90%
Lovex S053	<<locked>>	81%	44063	71%	**80	100%
Norma 200	<<locked>>	81%	35215	56%	**18	98%
[Norma 201]*	<<locked>>	94%	36114	58%	**35	90%
[Norma 202]*	<<locked>>	87%	28935	46%	**84	90%
[Ramshot X-Terminator]*	<<locked>>	93%	43192	69%	**40	90%
ReloadSwiss RS 14	<<locked>>	83%	24279	39%	**44	100%
ReloadSwiss RS 36	<<locked>>	81%	44643	72%	**53	100%
[ReloadSwiss RS 40]*	<<locked>>	83%	32155	52%	**43	90%
[Rottweil R 901]*	<<locked>>	83%	29341	47%	**54	90%
SNPE Vectan BA6 1/2	<<locked>>	81%	40799	65%	**84	100%
[SNPE Vectan SP 10]*	<<locked>>	81%	33083	53%	**82	92%
[SNPE Vectan Tubal 3000]*	<<locked>>	84%	29182	47%	**98	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	88%	26876	43%	**43	90%
[Shooters World Match Rifle]*	<<locked>>	91%	31096	50%	**69	90%
[Shooters World Tactical Rifle]*	<<locked>>	86%	38276	61%	**35	90%
[Somchem S321]*	<<locked>>	89%	35694	57%	**48	90%
[Somchem S335]*	<<locked>>	82%	26701	43%	**52	90%
Vihtavuori N110	<<locked>>	81%	51706	83%	**26	100%
Vihtavuori N120	<<locked>>	81%	35012	56%	**66	100%
Vihtavuori N130	<<locked>>	81%	29660	48%	**38	96%
[Vihtavuori N133]*	<<locked>>	81%	24511	39%	**87	91%
[Vihtavuori N135]*	<<locked>>	90%	24236	39%	**46	90%
[Vihtavuori N140]*	<<locked>>	88%	28601	46%	**44	90%
[Vihtavuori N530]*	<<locked>>	89%	36027	58%	**41	90%
[Vihtavuori N540]*	<<locked>>	90%	29689	48%	**97	90%
[Winchester 748]*	<<locked>>	88%	34824	56%	**44	90%
[Winchester StaBALL Match]*	<<locked>>	91%	40625	65%	**49	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