Owner of Buffalo Bore Tim Sundles on Heavy 45 Colt Ammunition:
This load (item 3H) is STANDARD PRESSURE and is safe for use in ANY/ALL firearms chambered in 45 Colt and/or 454 Casull. The over-all-length is 1.572 inch and is short enough to be fired in and fed through ANY/ALL 45 Colt firearms.
We test fire our published velocities from real world over-the-counter firearms, so the customer will have an idea what this ammunition is doing in the real world, where it matters and not in a laboratory. We feel that publishing velocities fired from very long laboratory test barrels, gives false high velocity readings and is misleading to the customer. See our below velocities for this load.