45 Colt 315gr. Hard Cast RNFP- Ruger Only


In Stock

Only 7 left in stock

SKU: 45C315MB20 Categories: , , , Tags: ,


This 45 Colt load is for use only in strong actions such as the Ruger Blackhawk and Super Blackhawk, Ruger Bisley, Ruger Redhawk, TC Contender.  It is also safe in modern lever guns.  The overall length makes it suitable in all lever action rifles.

Note that the New Vaquero model (small frame, “New Vaquero”, 3-digit serial number prefix) are not built to withstand this load.  The Original Vaquero model (large frame, “Vaquero”, 2-digit serial number prefix) will handle these loads.  Pressure is approximately 28,000 PSI.

Recoil from this load is very stiff.


4 5/8″ = 1,220 FPS


New Starline brass

HEAVY “bottleneck” Crimp

Hard Cast 315gr Bullet (with gas check)

OAL: 1.575″ +/- .005″

This 45 Colt was developed for penetration and accuracy.


Developed, loaded, and inspected by Steinel Ammunition Co.

20 Rounds

If you are looking for a +P 44 Magnum click here

Additional information

Weight 1.4 lbs
Dimensions 2.9 × 2.3 × 1.9 in