Here is some info that was published by Mr Wilson himself.
30 Bullets That Are Suitable for the 300 HAM’R and Recommended OAL
95gr Lehigh CC 2.255” OAL *
110gr Hornady SP #3010, 2.220” OAL, BC .256 **
110gr Hornady V-MAX #23010, 2.255” OAL, BC .290 *
110gr Lehigh CC #05-308-110-CUSP, 2.255” OAL, BC .253 *
110gr Barnes TSX #30341 or TAC-X #30336, 2.255” OAL
110gr Nosler Varmageddon #34057, 2.255” OAL, BC .293 *
110gr Sierra HP-V #2110, 2.175” OAL, BC .177 *
125gr Sierra SBT PH #2120, 2.250” OAL, BC .279 **
125gr Speer TNT #1986/#4725, 2.255” OAL, BC .341 **
125gr Sierra FNHP #2020, 2.110”OAL, BC .119
130gr Speer HP #2005, 2.170” OAL, BC .244 *
130gr Speer FNHC #2007, 1.170” OAL, BC .248 *
130gr Speer HAM’R RNHC #20041125, 2.175” OAL, BC .248 ** (WC exclusive bullet)
130gr Hornady SP #3020, 2.215” OAL, BC .295
135gr Sierra HP-V #2124, 2.230” OAL, BC .275
150gr Hornady SST #30303, 2.255” OAL, BC .370 **
150gr Speer FNHC #2011, 2.155” OAL, BC .255 **
150gr Speer SPHC #2023, 2.255” OAL, BC .377
150gr Speer HAM’R Bonded 2.255” OAL BC 387 ** (WC exclusive bullet)
150gr Speer Gold Dot #308150GDB, 2.255” OAL, BC .503
150gr Speer Gold Dot (Blackout) #308150BLKGDB 2.255” OAL, BC .463 **
150gr Speer Grand Slam #2026, 2.255” OAL, BC .295 *
150gr Nosler Partition #16329, 2.255” OAL, BC .387
150gr Federal Fusion BSP #FB308F1, 2.255” OAL, BC .387 **
150gr Sierra FNPH #2000, 2.155” OAL, BC .185
150gr Sierra RNPH #2135, 2.175” OAL, BC .200
150gr Remington RN CoreLokt, 2.175” OAL
150gr Berry FMJ #70631, 2.250” OAL
150gr Speer TMJ #308150TMJ, 2.250” OAL
150gr Winchester PP #WB30PP150, 2.255” OAL
* denotes a very good bullet choice, ** denotes my personal GO TO bullets