Load data for .240 Flang. Nitro Express + .243 | 62gr | Lehigh Defense Controlled Chaos

Recommended Powder(s): Accurate 4064

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.243 \| 62gr \| Lehigh Defense Controlled Chaos
Manufacturer SKU:	243062CuSP
Bullet Weight:	62gr \| 4.0g
Bullet Diameter:	0.243" \| 6.17mm
Bullet Length:	0.895" \| 22.7mm
Caliber:	.240 Flang. Nitro Express load data
Case Length (l3):	2.496" \| 63.4mm
Cartridge Length (C.O.L.):	3.201" \| 81.3mm
Seated Depth:	0.190" \| 4.8mm
Shank Seated Depth:	0.064" \| 1.6mm
Case Capacity:	57.0 Grains of Water \| 3.70 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	46412 psi \| 3200 bar
LID:	LID_B11004_C168
Last updated:	2025-11-06

Load data for 76 loads in caliber .240 Flang. Nitro Express with .243 | 62gr | Lehigh Defense Controlled Chaos bullet and 38 powders such as Accurate 4064. 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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C.O.L. (mm)
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Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
Barrel Length (cm)
Safety Buffer (%)
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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.

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%	41321	89%	**14	94%
Accurate 4064 👍	<<locked>>	86%	41597	90%	**66	99%
[Accurate 4350]*	<<locked>>	94%	41162	89%	**89	93%
Alliant Reloder- TS 15.5	<<locked>>	87%	41539	90%	**69	96%
[Alliant Reloder-15]*	<<locked>>	84%	41249	89%	**63	94%
[Alliant Reloder-16]*	<<locked>>	95%	41713	90%	**09	93%
Alliant Reloder-17	<<locked>>	90%	41191	89%	**35	95%
[Hodgdon CFE223]*	<<locked>>	85%	41220	89%	**69	93%
[Hodgdon H380]*	<<locked>>	86%	41582	90%	**46	92%
Hodgdon Hybrid 100V	<<locked>>	97%	40669	88%	**40	95%
[Hodgdon LVR]*	<<locked>>	92%	41727	90%	**92	92%
[Hodgdon VARGET]*	<<locked>>	86%	40988	88%	**07	93%
Hodgdon TrailBoss	<<locked>>	96%	32663	70%	**13	100%
IMR 3031	<<locked>>	84%	41669	90%	**19	100%
[IMR 4064]*	<<locked>>	87%	41278	89%	**20	94%
IMR 4895	<<locked>>	83%	41437	89%	**79	95%
Lovex S062	<<locked>>	85%	41539	89%	**43	96%
Norma 203B	<<locked>>	85%	41336	89%	**66	95%
[Norma URP]*	<<locked>>	95%	41481	89%	**89	93%
[Ramshot Big Game]*	<<locked>>	85%	41611	90%	**76	94%
ReloadSwiss RS 14	<<locked>>	97%	33388	72%	**72	100%
ReloadSwiss RS 52	<<locked>>	86%	41727	90%	**15	97%
ReloadSwiss RS 60	<<locked>>	91%	41017	88%	**35	96%
[ReloadSwiss RS 62]*	<<locked>>	94%	41321	89%	**09	92%
Rottweil R 902	<<locked>>	83%	41611	90%	**23	96%
Rottweil R 903	<<locked>>	89%	41756	90%	**63	96%
[SNPE Vectan SP 11]*	<<locked>>	88%	41466	89%	**89	94%
SNPE Vectan Tubal 5000	<<locked>>	87%	41669	90%	**64	99%
Shooters World Precision	<<locked>>	85%	41539	89%	**43	96%
Somchem S355	<<locked>>	88%	41046	88%	**37	95%
Somchem S365	<<locked>>	97%	39842	86%	**99	96%
Vihtavuori N135	<<locked>>	90%	41669	90%	**37	100%
Vihtavuori N140	<<locked>>	84%	41336	89%	**14	99%
Vihtavuori N150	<<locked>>	93%	41698	90%	**23	97%
[Vihtavuori N160]*	<<locked>>	92%	41626	90%	**40	93%
Vihtavuori N540	<<locked>>	83%	41118	89%	**33	98%
[Vihtavuori N550]*	<<locked>>	91%	41336	89%	**83	92%
Winchester 6.5 StaBALL	<<locked>>	92%	41539	89%	**97	95%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2208]*	<<locked>>	81%	35157	76%	**53	91%
Accurate 4064	<<locked>>	81%	35172	76%	**96	97%
[Accurate 4350]*	<<locked>>	91%	36085	78%	**48	90%
[Alliant Reloder- TS 15.5]*	<<locked>>	81%	34606	75%	**79	93%
[Alliant Reloder-15]*	<<locked>>	81%	37115	80%	**45	92%
[Alliant Reloder-16]*	<<locked>>	91%	36927	80%	**74	90%
[Alliant Reloder-17]*	<<locked>>	84%	33025	71%	**79	90%
[Hodgdon CFE223]*	<<locked>>	81%	35795	77%	**25	90%
[Hodgdon H380]*	<<locked>>	83%	37434	81%	**25	90%
[Hodgdon Hybrid 100V]*	<<locked>>	89%	31807	69%	**81	90%
[Hodgdon LVR]*	<<locked>>	90%	38522	83%	**04	90%
[Hodgdon VARGET]*	<<locked>>	81%	34853	75%	**46	91%
Hodgdon TrailBoss	<<locked>>	81%	26208	56%	**36	100%
IMR 3031	<<locked>>	81%	37391	81%	**01	99%
[IMR 4064]*	<<locked>>	81%	34360	74%	**30	91%
[IMR 4895]*	<<locked>>	81%	38058	82%	**94	93%
Lovex S062	<<locked>>	81%	36782	79%	**09	95%
[Norma 203B]*	<<locked>>	81%	36651	79%	**35	93%
[Norma URP]*	<<locked>>	91%	36651	79%	**55	90%
[Ramshot Big Game]*	<<locked>>	81%	36201	78%	**25	92%
ReloadSwiss RS 14	<<locked>>	81%	26150	56%	**78	100%
[ReloadSwiss RS 52]*	<<locked>>	81%	35302	76%	**41	94%
[ReloadSwiss RS 60]*	<<locked>>	84%	32329	70%	**50	91%
[ReloadSwiss RS 62]*	<<locked>>	92%	37246	80%	**94	90%
Rottweil R 902	<<locked>>	81%	38421	83%	**38	95%
[Rottweil R 903]*	<<locked>>	81%	31734	68%	**77	91%
[SNPE Vectan SP 11]*	<<locked>>	81%	33199	72%	**50	91%
SNPE Vectan Tubal 5000	<<locked>>	81%	34389	74%	**84	98%
Shooters World Precision	<<locked>>	81%	36782	79%	**09	95%
[Somchem S355]*	<<locked>>	81%	32764	71%	**04	91%
[Somchem S365]*	<<locked>>	88%	29385	63%	**51	90%
Vihtavuori N135	<<locked>>	81%	31560	68%	**74	98%
Vihtavuori N140	<<locked>>	81%	38116	82%	**41	98%
[Vihtavuori N150]*	<<locked>>	81%	27876	60%	**23	91%
[Vihtavuori N160]*	<<locked>>	87%	36085	78%	**96	90%
Vihtavuori N540	<<locked>>	81%	37840	82%	**41	97%
[Vihtavuori N550]*	<<locked>>	88%	36477	79%	**48	90%
[Winchester 6.5 StaBALL]*	<<locked>>	84%	31618	68%	**09	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.