Federal Power-Shok or Remington Core-Lokt 300gr are reliable, widely available options that provide effective energy transfer for medium-sized game. Ballistics & Range Performance
Ammo selection depends heavily on the intended target and the strength of the rifle's action (e.g., an antique Trapdoor Springfield versus a modern Ruger No. 1). 45-70-ammo
HSM Cowboy Action 405gr HCFN or standard lead round nose loads mimic original low pressures. These are enjoyable for recreational shooting and are generally safe for antique Trapdoor rifles. 45-70-ammo