Load Data for .505 Magnum Gibbs

 
Bullet: 525 gr Banded Solids  (Barnes)
Diameter: 0.504"
 
Powder: MagPro (Accurate)
Starting Powder: 142.5 gr
Max Powder: 152.5 gr
 
Primer: FED 215m
 
Case: Jamison Brass & Ammunition
Trim Length: 3.140"
 
Cartridge Overall Length: 3.830"
 
Starting Velocity: 2,193
Starting Pressure:  
Max Velocity: 2,359
Max Pressure:  
 
Compressed
*Recommend crimping case mouth into front cannelure groove.
Barrel: 23" with 1:16" twist.
 
Source: https://www.barnesbullets.com/wp-content/uploads/2021/05/505-Gibbs.pdf
 
Printed from Shooter's Reference on 02/22/2025:
https://www.shootersreference.com/reloadingdata/505-magnum-gibbs/