.20 Nosler Load Data & Reloading Guide

Rifle

Also known as: .20 Nosler Remington, 20×42mm Nosler

About .20 Nosler

The .20 Nosler is a relatively recent addition to the family of high-performance rifle cartridges, introduced in 2015. Developed by Nosler, Inc., this caliber emerged from the company’s desire to provide a flat-shooting, high-velocity option for varmint hunters and target shooters alike. Its design is rooted in the personal preference for a smaller caliber that offers the benefits of reduced recoil and improved accuracy while delivering sufficient energy to take down small to medium-sized game effectively.

This caliber is based on the .22-250 Remington case, necked down to accept .204-inch diameter bullets. One of its key technical characteristics is its ability to propel lightweight bullets at impressive velocities, often exceeding 4,000 feet per second. The typical bullet weights for the .20 Nosler range from 32 grains to 40 grains, allowing for flexibility in selection based on specific shooting applications.

Ballistic performance is notably characterized by excellent accuracy and flat trajectories, making it ideal for long-range shooting scenarios. This cartridge exhibits minimal wind drift due to its high ballistic coefficient, and it retains energy remarkably well at extended ranges. These features make the .20 Nosler a preferred choice not only for varmint hunting but also for precision shooting in competitive environments.

For reloaders, the .20 Nosler presents several advantages. The availability of high-quality components, including a wide range of bullets suited for various purposes, allows for precise tailoring of loads to achieve optimal performance. Additionally, its efficient powder capacity provides ample flexibility in load development, enabling reloaders to experiment with different propellants and bullet combinations to achieve desired results. This adaptability makes the .20 Nosler an appealing choice for those looking to enhance their shooting experience through customized ammunition.

Technical Drawing

.20 Nosler cartridge dimensions, C.I.P.L1 = 37.49 mm, L2 = 41.097 mm, L3 = 46.99 mm, L6 = 57.404 mmL1 = 37.49 mmL2 = 41.10 mmL3 = 46.99 mmL6 = 57.40 mm61.6°

Based on Wildcat, the max. allowed case length is 1.850 in / 46.99 mm, the max. cartridge length is 2.260 in / 57.40 mm, and the max. allowed pressure is 55,114 PSI / 3,800 bar.

Technical Specifications

Maximum Pressure:55114 PSI / 3800 bar
Case Volume:39 Grains of Water
Primer Size:Small Rifle (SR)
Safety Standard:Wildcat
Bore Area:20.71 mm²
Barrel Diameter:0.204" / 5.2 mm
L1:1.476" / 37.49 mm
L2:1.618" / 41.10 mm
L3:1.850" / 46.99 mm
L6:2.260" / 57.40 mm

Start Calculating to Develop your own Load Data for .20 Nosler

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Standard Load Data — .20 Nosler

Select your desired cartridge and bullet weight below to access the corresponding load table. From there, you can choose any listed load recipe and transfer it directly into the ballistics calculator for further refinement, optimization, and precision tuning.

Frequently Asked Questions

The maximum pressure for .20 Nosler is 55,114 psi | 3,800 bar.

.20 Nosler typically uses a Small Rifle (SR) primer.

The case capacity of .20 Nosler is approximately 39 grains of water (H₂O).