Load data for .450 N.E. 3 1/4'' + .458 | 270gr | Atomic 29 FNHP

Recommended Powder(s): Accurate 2495, Alliant AR-Comp, IMR 3031

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:	.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_B12245_C765
Last updated:	2026-03-25

Load data for 104 loads in caliber .450 N.E. 3 1/4'' with .458 | 270gr | Atomic 29 FNHP bullet and 52 powders such as Accurate 2495, Alliant AR-Comp, IMR 3031. 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.

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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 2206H]*	<<locked>>	90%	39450	89%	**31	92%
[ADI Benchmark 8208]*	<<locked>>	88%	39682	90%	**15	94%
Accurate 2015	<<locked>>	86%	39784	90%	**08	99%
[Accurate 2230]*	<<locked>>	85%	39740	90%	**95	93%
Accurate 2460	<<locked>>	85%	39798	90%	**22	95%
Accurate 2495 👍	<<locked>>	92%	39813	90%	**00	99%
Accurate 2520	<<locked>>	90%	39537	89%	**61	96%
Accurate 4064	<<locked>>	97%	38653	87%	**64	97%
Alliant AR-Comp 👍	<<locked>>	90%	39450	89%	**87	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	97%	39508	89%	**64	93%
Alliant Reloder-10x	<<locked>>	83%	39697	90%	**25	100%
[Bofors RP3]*	<<locked>>	97%	38682	87%	**54	93%
[Hodgdon BL-C2]*	<<locked>>	90%	39682	90%	**74	94%
[Hodgdon Benchmark]*	<<locked>>	86%	39682	90%	**69	94%
Hodgdon H322	<<locked>>	87%	39624	90%	**44	98%
[Hodgdon H4895]*	<<locked>>	90%	39581	89%	**38	93%
Hodgdon TrailBoss	<<locked>>	97%	31314	71%	**47	100%
IMR 3031 👍	<<locked>>	95%	39639	90%	**13	99%
[IMR 4895]*	<<locked>>	93%	39726	90%	**74	92%
[IMR 8208 XBR]*	<<locked>>	88%	39682	90%	**15	94%
Lovex D073.4	<<locked>>	84%	39769	90%	**08	95%
Lovex D073.5	<<locked>>	85%	39798	90%	**22	95%
Lovex D073.6	<<locked>>	92%	39653	90%	**67	96%
[Lovex S060]*	<<locked>>	89%	39581	89%	**53	92%
[Lovex S062]*	<<locked>>	95%	39595	90%	**31	94%
[Norma 201]*	<<locked>>	91%	39566	89%	**08	94%
Norma 202	<<locked>>	91%	39798	90%	**51	97%
[Norma 203B]*	<<locked>>	94%	39334	89%	**51	92%
[Ramshot Wild Boar]*	<<locked>>	89%	39479	89%	**35	92%
[Ramshot X-Terminator]*	<<locked>>	85%	39595	90%	**76	91%
ReloadSwiss RS 14	<<locked>>	97%	31125	70%	**86	100%
ReloadSwiss RS 40	<<locked>>	84%	39697	90%	**22	95%
[ReloadSwiss RS 60]*	<<locked>>	97%	38203	86%	**71	93%
Rottweil R 901	<<locked>>	88%	39595	90%	**12	96%
[Rottweil R 902]*	<<locked>>	93%	39595	90%	**02	94%
[SNPE Vectan SP 9]*	<<locked>>	91%	39711	90%	**31	92%
SNPE Vectan Tubal 3000	<<locked>>	89%	39682	90%	**56	97%
SNPE Vectan Tubal 5000	<<locked>>	96%	39552	89%	**62	98%
Shooters World Match Rifle	<<locked>>	92%	39653	90%	**67	96%
[Shooters World Precision]*	<<locked>>	95%	39595	90%	**31	94%
[Somchem S321]*	<<locked>>	86%	39653	90%	**35	94%
Somchem S335	<<locked>>	90%	39494	89%	**69	97%
[Somchem S341]*	<<locked>>	90%	39755	90%	**12	91%
[Somchem S355]*	<<locked>>	97%	37478	85%	**99	92%
Vihtavuori N130	<<locked>>	85%	39682	90%	**66	99%
Vihtavuori N133	<<locked>>	91%	39595	89%	**76	99%
Vihtavuori N135	<<locked>>	97%	35433	80%	**56	98%
Vihtavuori N140	<<locked>>	93%	39624	90%	**15	97%
[Vihtavuori N530]*	<<locked>>	87%	39668	90%	**28	94%
Vihtavuori N540	<<locked>>	93%	39465	89%	**41	97%
Winchester 748	<<locked>>	87%	39450	89%	**64	95%
[Winchester StaBALL Match]*	<<locked>>	85%	39682	90%	**48	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	87%	35781	81%	**40	90%
[ADI Benchmark 8208]*	<<locked>>	81%	31734	72%	**15	90%
Accurate 2015	<<locked>>	81%	33431	76%	**61	98%
[Accurate 2230]*	<<locked>>	81%	34809	79%	**87	91%
[Accurate 2460]*	<<locked>>	81%	34447	78%	**90	93%
Accurate 2495	<<locked>>	81%	27021	61%	**62	95%
[Accurate 2520]*	<<locked>>	81%	28442	64%	**82	91%
[Accurate 4064]*	<<locked>>	84%	24685	56%	**74	90%
Alliant AR-Comp	<<locked>>	81%	29254	66%	**31	99%
[Alliant Reloder- TS 15.5]*	<<locked>>	91%	32895	74%	**87	90%
Alliant Reloder-10x	<<locked>>	81%	37014	84%	**59	99%
[Bofors RP3]*	<<locked>>	92%	32387	73%	**00	90%
[Hodgdon BL-C2]*	<<locked>>	84%	32387	73%	**87	90%
[Hodgdon Benchmark]*	<<locked>>	81%	33982	77%	**28	92%
Hodgdon H322	<<locked>>	81%	33025	75%	**87	96%
[Hodgdon H4895]*	<<locked>>	85%	33808	76%	**97	90%
Hodgdon TrailBoss	<<locked>>	81%	24381	55%	**86	100%
[IMR 3031]*	<<locked>>	81%	25759	58%	**13	92%
[IMR 4895]*	<<locked>>	90%	35302	80%	**69	90%
[IMR 8208 XBR]*	<<locked>>	81%	31734	72%	**15	90%
[Lovex D073.4]*	<<locked>>	81%	36201	82%	**26	94%
[Lovex D073.5]*	<<locked>>	81%	34229	77%	**87	93%
[Lovex D073.6]*	<<locked>>	82%	27195	61%	**39	90%
[Lovex S060]*	<<locked>>	85%	35404	80%	**57	90%
[Lovex S062]*	<<locked>>	87%	31401	71%	**28	90%
[Norma 201]*	<<locked>>	84%	31502	71%	**05	90%
[Norma 202]*	<<locked>>	81%	28369	64%	**52	92%
[Norma 203B]*	<<locked>>	92%	36114	82%	**79	90%
[Ramshot Wild Boar]*	<<locked>>	86%	36318	82%	**59	90%
[Ramshot X-Terminator]*	<<locked>>	82%	36434	82%	**97	90%
ReloadSwiss RS 14	<<locked>>	81%	24366	55%	**26	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	35505	80%	**20	94%
[ReloadSwiss RS 60]*	<<locked>>	93%	33243	75%	**26	90%
[Rottweil R 901]*	<<locked>>	81%	31879	72%	**18	94%
[Rottweil R 902]*	<<locked>>	86%	31633	72%	**02	90%
[SNPE Vectan SP 9]*	<<locked>>	88%	36085	82%	**36	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	30879	70%	**36	93%
[SNPE Vectan Tubal 5000]*	<<locked>>	81%	24889	56%	**79	91%
[Shooters World Match Rifle]*	<<locked>>	82%	27195	61%	**39	90%
[Shooters World Precision]*	<<locked>>	87%	31401	71%	**28	90%
[Somchem S321]*	<<locked>>	81%	33257	75%	**74	91%
[Somchem S335]*	<<locked>>	81%	30153	68%	**36	94%
[Somchem S341]*	<<locked>>	88%	36753	83%	**46	90%
[Somchem S355]*	<<locked>>	94%	34287	78%	**20	90%
Vihtavuori N130	<<locked>>	81%	34650	78%	**51	99%
Vihtavuori N133	<<locked>>	81%	28558	65%	**03	96%
[Vihtavuori N135]*	<<locked>>	81%	21553	49%	**29	90%
[Vihtavuori N140]*	<<locked>>	81%	26643	60%	**74	91%
[Vihtavuori N530]*	<<locked>>	81%	32808	74%	**54	91%
[Vihtavuori N540]*	<<locked>>	81%	26237	59%	**80	90%
[Winchester 748]*	<<locked>>	81%	32387	73%	**90	92%
[Winchester StaBALL Match]*	<<locked>>	81%	34403	78%	**20	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.

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