Bullet: 350 gr DCSP  (Speer)

Diameter: 0.500"

 

Powder: No. 9 (Accurate)

Starting Powder: 34.0 gr

Max Powder: 38.0 gr

 

Primer: FED 215

 

Case: Starline Brass

Trim Length: 1.615"

 

Cartridge Overall Length: 2.070"

 

Starting Velocity: 1,441

Starting Pressure:  

Max Velocity: 1,643

Max Pressure:  

 

WARNING: Never load less than the minimum charges shown in the loading data as the small charge of propellant may not be sufficient to push the bullet completely down the barrel. <br />Although 50 Action Express bullets are the correct diameter, they are too lightly constructed for use in the 500 S&W Magnum even with reduced loads. In addition, they have no crimp cannelure to hold them in place. <br />The 500 S&W Magnum cartridge case was designed for LARGE RIFLE PRIMERS such as the CCI no. 250 and Federal 215Magnum. Do not use Large Pistol primers.

 

Source: https://reloadingdata.speer.com/Downloads/speer/ReloadingPdfs/500-sw-magnum-with-500-dcsppdf.pdf