My AIM 124 Load workup:
Bullet Manufacturer :AIM Bullet Weight: 124 grains
Powder Type : 231 Powder Weight: 3.8 grains
Primer: CCI C.0.L. 1.100
Average Velocity : 912.4 Power Factor: 113
Bullet Manufacturer : AIM Bullet Weight: 124 grains
Powder Type : 231 Powder Weight: 4.0 grains
Primer: CCI C.0.L. 1.100
Average Velocity : 953.0 Power Factor: 118
Bullet Manufacturer : AIM Bullet Weight: 124 grains
Powder Type : 231 Powder Weight: 4.2 grains
Primer: CCI C.0.L. 1.100
Average Velocity : 1006.2 Power Factor: 125
Bullet Manufacturer : AIM Bullet Weight: 124 grains
Powder Type : 231 Powder Weight: 4.4 grains
Primer: CCI C.0.L. 1.100
Average Velocity : 1022.0 Power Factor: 127
Bullet Manufacturer : AIM Bullet Weight: 124 grains
Powder Type : 231 Powder Weight: 4.6 grains
Primer: CCI C.0.L. 1.100
Average Velocity : 1063.5 Power Factor: 132
Going to run up a few hundred of the 4.6 grain load to give a try.