RoninPhx,

Yes, those are the hornady 240gr swage swc. They have no groove but checkering designed as you mention. These are soft lead with horndady reloading manual saying to keep them 1,000 fps or slow.

Using titegroup with these bullets the hornady manual starts at 5.2grains and goes up to 6.6 grains.

I used 5.6 grains. I did not get real aggressive with the crimp.

I checked by turning the loaded ammo upside down and tried pushing the bullet on the benchtop and it didn't budge.

I can increase the charge on the next batch and put tighter crimp this time.

I'm enjoying shooting a revolver as I get to keep ALL my brass to reload!!! laugh