If you're loading max loads, generally the slower burning powder will push the bullet faster, and will accept a larger powder charge, so you'll have higher velocity AND greater powder weight.
@noylj was way off of of the mark, momentum = mass of the bullet * bullet velocity + mass of powder * propellant gas velocity. Results by different groups, including SAAMI, have shown, for handguns, the velocity of the propellant gas is 1.5 times that of the bullet velocity, so then the formula simplifies down to read:
momentum = bullet velocity * ( bullet mass + mass of powder * 1.5)
So if you load to the same velocity, the heavier powder charge will have SLIGHTLY more recoil. If you load to the same PRESSURE, more often, the slower powder will yield higher velocity, so you'll have more recoil both from heavier powder charge AND from higher bullet velocity.
If you load to the same velocity, you'll never be able to tell the difference from the powder charge difference, however. You're talking about 115grns at 1100fps, which is ~18 lbm ft/sec, whereas you're only talking about 6grn powder at 1650fps, which yields ~1.4 lbm ft/sec, so you only have less than 8% of the recoil contributed by the powder vs. the bullet. Swapping for a faster powder and only running 4.0grn, you'd be talking about 0.9 lbm ft/sec instead of 1.4... So 18.9 net instead of 19.4... Just not enough to feel yourself.