7mm-300 win

[rickiesrevenge]

Thinking about building a 7-300 win mag for hunting. Plan on shooting the 180 class bullets. Anyone here ever built one?

Aaron

 

[fourpower]

have one that is a killer. 28in bbl h-1000 or retumbo 180 bergers 3150fps shoots lights out!

 

[rickiesrevenge]

Do either of you have a reamer print or reamer for it?

Aaron

 

[kev77]

I just ordered a 7-300win mag reamer from JGSTOOLS. No turn neck .200 free bore for the 180hybird

 

[rickiesrevenge]

What brass are you using and whats the neck diameter for a no turn neck? I'm thinking about using RWS brass.

Aaron

 

[kev77]

Norma brass ,dont know what the neck will be. I will skim them anyway

 

[tclaunch]

I`ve been using one for several years. I wanted a wildcat to be easy to form compared to moving the shoulder and changing angles. Simply run your brass through a 7mm Rem mag die backed out, also use a 300 WM body die and your set. Seat with a standard 7mm Rem Mag die. Mine has a 26" barrel and top end loads will run 3350 with 140 class bullets. 31 to 3150 with 160`s. I use Lapua brass and do have the reamer!

 

[rickiesrevenge]

Tim,
Would you by chance have a reamer print you'd share with me? This is my first belted mag reamer and I'm not really sure what the dimensions should be down at the base. Don't want to have clickers!

Aaron

 

[tclaunch]

I`ll see if I can find it. Mine is an older Henriksen and no clickers. Its been used on 5 chambers. I`ll see if I can find it.

 

[tclaunch]

Here is the print

 

[rickiesrevenge]

Thanks Tim.

Aaron