Charles also experimented with wildcats based on the .30-06 Springfield case, most notably creating a forerunner of the .25-06 Remington.

Newton's premise was to use a large case for each caliber he developed in order for the larger powder charge to propel the bullet at high velocity resulting in effective terminal ballistics.

From 1914 until the late 1920s, he entered into various endeavors to promote and sell rifles in his proprietary calibers.

[3] To promote his proprietary cartridges and ensure a supply of high-quality rifles capable of safely withstanding the high chamber pressure developed by them, Charles incorporated the Newton Arms Co. Inc. in 1914.

The outbreak of World War I led Charles to manufacture his own rifles.

With the employment of noted barrel-maker and gunsmith Harry Pope, Newton assured his rifles would be of the highest quality.

Due to financial difficulties and the inability to make ammunition because of the war efforts, the company produced rifles under Newton for 16 months.

They were also in business for about 16 months, were sued by Newton, and sold the remaining rifles to Kirkland Bros. Hardware.

Only prototypes were made, because Martin required 500 secured orders to start limited production, which Newton couldn't find.