Written by Ballistic Technician Robert Treece
No specific data has been compiled as of yet – expect the 125 grainer (stock #2121) to be “lumped” in with the other 125 grain data and just play with your oal; around 2.800″.
For the 135 grainer (stock #2123)-can use 150 grain data and expect to be able to bump max up from 1 to 1.5 grains for the lighter bullet, just work it up; oal with it having a boat tail, around 2.650″.
Hope this helps-good shooting and thanks for using our products!
If you don’t have the latest Sierra reloading manual but are interested in trying either or both projectiles-give us a call (800) 223-8799; we’ll try to give you a place to start, even for another cartridge if feasible!