Full charge wadcutters in .38 Special

I've previously mentioned the use of "full charge" wadcutters in .38 Special. As with much of the stuff I do, I got the idea from C.E. Harris. Read his article here.

Today I ran 10 such loads over my Garmin Xero C1 Pro chronograph with the following results:

Full specs for my handloads:

• .358 powder coated 148 grain double end wadcutters from Missouri Bullet Company
• 3.5 grains of Alliant Bullseye powder
• Winchester WSP small pistol primer
• Mixed .38 brass

I fired them from a Ruger Police Service Six chambered for .357 Magnum, with a 4" barrel.

Substituting 3.5 grains of Hodgdon Titegroup for the Bullseye should give similar results but be cleaner burning.