Brent, I have never tried the Gould bullet. I do have an old Ideal mold that is a hollow point in the .45 government bullet. It works pretty good on hogs if you drive it fast, 1300fps+. I used it in my 45-100. Its an 11 pound rifle and too heavy for me to lug around day in and day out.
I don't know if I told you this or not, but before I started lining out for Africa I had Brooks cut me a stepped paper patch bullet for my 40-70ss. It is a flat base and with a .060" LDPE it shoots OK. Doesn't kill all that well. I took the same bullet and wad and drove it to 1750fps with H4895 and shot a couple of hogs with it. It was like those hogs got electrocuted. Those 40-1 paper patch bullets turn themselves inside out, almost like a little cup. It was a fun experiment, but when you start driving 375-400gr bullets in the 1800fps to 2100fps range in a 9lb rifle the recoil begins to play a part. In truth I am a little recoil sensitive. I need to keep recoil mild to shoot my best in the field.
SS
Josh