You have entered the home of data for the Terminator family of cartridges. Like all loading data this is just a guideline to help you and not absolute information. This is simply what worked for us in just one or two rifles with our lot of powder, bullets primers etc. It is still your responsibility to follow safe loading practices and make your own safety decisions. It is not a safe loading practice to take your rifle chambered in one of these rounds even though we built it and simply start with the max load. It is still a required practice that you safely work up to a safe pressure and load. Load date can change from lot to lot with components, ambient temperature or any other number of factors. Please be safe and use this info as a guideline. Have fun and good shooting.
Shawn
375 Terminator
Case body similar to a 375 CheTac
Rebated rim to Super Magnum / Lapua (.585″ head)
Capacity is in the 168.6 gr H2O range
Appears to want to push the Cutting Edge 400 gr. Lazer bullet at 3050-3100 fps out of a 34″ barrel
We have already “proofed” this round in our Terminator action at 170,000 psi without any metal failure.
Test Load – CEB 375 Lazer
Case: Peterson
Primer: CCI 250
Bullet: CEB Laser 375 gr. / 375 cal.
Powder: VV N570
OAL: 3.755” (-.000”) with 338 #2 comp
I shot a 3 shot group @ 100 yards: .295”
Average velocity including fouling shot: 3031 fps
3030, 3030, 3028,3031, 3035 fps shots 1-4
Extreme Velocity Spread: 7 fps
30″ Barrel Test Loads
Case: Peterson / DE 375 Terminator
Bullet: 375 gr. CEB
Max OAL: 4.608” / with # 2 .338” comp 3.755”
Test OAL: -.000”
Primer: WW –WLRM
Powder: Retumbo
Max Charge: 128.0 gr.
Velocity: 2978 fps ave
ES: 16 fps
Accuracy: sub .5 moa
Case: Peterson / DE 375 Terminator
Bullet: 350 gr. CEB
Max OAL: 4.514” / with # 2 338 comp 3.654”
Test OAL: -.000”
Primer: WW –WLRM
Powder: Retumbo
Max Charge: 131.0 gr.
Velocity: 3080 fps ave, shot for pressure only
Case: Peterson / DE 375 Terminator
Bullet: 325 gr. CEB
Max OAL 4.382” / with # 2 .338” comp 3.524”
Test OAL: -.000”
Primer: WW –WLRM
Powder: Retumbo
Max Charge: 135.0 gr
Velocity: 3198 fps pressure series only
34″ Barrel Test Loads
Case: Peterson / DE 375 Terminator
Bullet: 375 gr. CEB
Max OAL: 4.608” / with # 2 .338” comp 3.755”
Test OAL: -.000”
Primer: CCI 250
Powder: VV N570
Max Charge: 130.0 gr.
Velocity: 3030 fps ave
ES: 7fps
Accuracy: .112”- .295”
Case: Peterson / DE 375 Terminator
Bullet: 375 gr. CEB
Max OAL: 4.608” / with # 2 .338” comp 3.755”
Test OAL: -.000”
Primer: WW –WLRM
Powder: VV N570
Max Charge: 132.0 gr.
Velocity: 3080 fps ave, Pressure only
Case: Peterson / DE 375 Terminator
Bullet: 400 gr. CEB
Max OAL: 4.716” / with # 2 3.859”
Test OAL: -.010” (need to adjust and test -.000”)
Primer: WW –WLRM
Powder: VV N570
Max Charge: 129.0 gr
Velocity: 2981 fps pressure series only