Reeder Custom Guns - The .255 Banshee does that easily, about same powder charge.

WB
The .255 Banshee does that easily, about same powder charge.
Saturday, February 04, 2017, 20:06

There is a bigger jump in the .25 bore from single shot 10" to 7.5" revolver, more so than say a .429. But you can't make it a cannon anyway. It's fast than a .22 WMR easily with twice the bullet.

The 80 gr. FNGC is my favorite bullet but the Speer 75 gr. JSP is a close second when I can find it. Like GNR said the more weight the more efficient the burn. I have a mould for the 65 gr. Lyman FNGC and the late 60 gr. Jackrabbit mould, but have not made the latter yet.

My .22 WMR SA will launch a 40 gr. at 1375 fps, the .255 Banshee will beat that easily with a 80 gr. from my 7.5". Many loads about 1600 fps. From a 10" TC it's closer to 2,000 fps.

Huey 250GNR FPS from 5" Hellcat - Blake, 2017-02-04, 14:11
- It will definitely ventilate a hog. (nm) - Puffy, 2017-02-04, 20:13
- Blake, great information. Thanks much!... (nm) - Huey, 2017-02-04, 14:33
  - I think longer barrels and sealed breach add a bunch - WB, 2017-02-04, 14:57
    - the heavier bullets have a longer barrel dwell time - Gary Reeder, 2017-02-04, 15:22
      - My experience similar to WBs. I suspect the 250 GNR... - Huey, 2017-02-04, 18:02
        The .255 Banshee does that easily, about same powder charge. - WB, 2017-02-04, 20:06