7 Blaser Mag, EOL 195, & 1st Elk

[GoosePilot]

I will have to run the 175, 180, 184 each to pressure. The 195 is the only one i have been to pressure with. 2" more barrel should get what 50-75fps more than my speeds? 175 might be 3100 in 26"?

 

[Majopikeras]

Congrats on your elk!!

Would you please let me know the neck diameter of a loaded round? Guessing about neck thickness on Norma Blaser magnum brass...

 

[Wild Monkey]

Probably not with a 24" barrel. 2925 fps is common with a 26" and 195gr. EOL. The 7mm Blaser Imp. has achieved 3125-3140 fps with 26" barrel and a 180 gr. Hybrid, though. You won't get your best velocity with H1000, but consistency of velocity and accuracy is more important. Velocity standard for the base 7mm Blaser Magnum is 3050-3080 fps with RL-26 and 180 gr. Hybrids in a 26" barrel without high pressure. Try getting that velocity out of a 7mm RUM without 12-15 extra grains of powder ?

Could you clarify which Reamer Print your Improved is based on? My print here lists Rogue *37 @ .5219" width. Hence my Virgin 300 RUM Norma Brass measures .5245" @ 1.893"? Therefore I would be seeking an Improved of at minimum .525 - .530 inches shoulder width.

 

[GoosePilot]

Congrats on your elk!!

Would you please let me know the neck diameter of a loaded round? Guessing about neck thickness on Norma Blaser magnum brass...

It is norma blaser brass, it's just blown out to 37 deg and less taper. 0.3095 loaded neck diameter.

 

[GoosePilot]

This is original ptg print that bigngreen used. My T/S built using these specs and jgs reamer