Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Rifles, Bullets, Barrels & Ballistics

Rifles, Bullets, Barrels & Ballistics Applied Ballistics


Reply

Anyone own a 7mm 300 Win Mag?

 
LinkBack Thread Tools Display Modes
  #393  
Old 08-28-2013, 09:50 AM
Silver Member
 
Join Date: Jul 2012
Posts: 430
Re: Anyone own a 7mm 300 Win Mag?

Is there any chance anybody would be willing to share their plans for the reamer for this caliber? I am wanting just a straight up 300 win mag with the same shoulder angle, just purely necked down to the 7mm. I am a little bit beginner and this wildcat stuff so I am trying to learn a little. I don't really want to have my reamer built for a specific bullet, as I would like to shoot the 180 berger, but then possibly shoot the 195 when it comes out. We'll see if I even have it built by then. hahaha Just curious if anybody would email me their spec sheet so I can try to learn a little. If so, PM me and I will give you my email address. Thanks
Reply With Quote
  #394  
Old 08-28-2013, 11:37 AM
Silver Member
 
Join Date: Apr 2007
Location: Lincoln Co., NV
Posts: 175
Re: Anyone own a 7mm 300 Win Mag?

Quote:
Originally Posted by mrb1982 View Post
Is there any chance anybody would be willing to share their plans for the reamer for this caliber? I am wanting just a straight up 300 win mag with the same shoulder angle, just purely necked down to the 7mm. I am a little bit beginner and this wildcat stuff so I am trying to learn a little. I don't really want to have my reamer built for a specific bullet, as I would like to shoot the 180 berger, but then possibly shoot the 195 when it comes out. We'll see if I even have it built by then. hahaha Just curious if anybody would email me their spec sheet so I can try to learn a little. If so, PM me and I will give you my email address. Thanks

Call PTG when you order and tell them that is what you want and they will fix you up - I imagine the freebore will be around .220. My reamer freebore is .180 and it shoots the 180 bergers well but they are seated a bit deeper in my case than I like.

Also, if you plan on the 195s later on I think the twist needs to be 1:8.

I do have an excel doc of the reamer print if you feel this will help.
Reply With Quote
  #395  
Old 08-28-2013, 11:51 AM
Silver Member
 
Join Date: Jul 2007
Location: Huntsville Tx
Posts: 119
Re: Anyone own a 7mm 300 Win Mag?

Fire formed 20 pcs of brass yesterday. Shot one round then cleaned for most of them then shot some 3 shot groups cleaning between groups. groups were about 3/8. Fire form load was a little hot, velocities ran from 3267 to 3341 with a 150 SMK. Used 69 gr of RJ 19 and RWS brass. Will drop down to 65 gr or lower for the next fire forming secession.
Going to load some 168 and 180 VLD's with H1000 in the formed cases and work up a load.
For my purposes I think I will hunt with the 168's, deer and hogs mainly.
Want to run the 180's to max and check velocity just for grins.
My PTG reamer print #39452 has .188 free bore and a .316 neck, 30 degree shoulder and described as 7mm Practical.
Recoil with the Harrels brake was mild to say the least. Rifle weighs 13-4 so its not a mountain rifle. Built for Texas stand hunting.
Barrel is 27.5 in to crown plus brake.
Will check back after loads are worked up with velocity info.
Attached Thumbnails - Click to View Larger
Anyone own a 7mm 300 Win Mag?-photo-15-.jpg   Anyone own a 7mm 300 Win Mag?-photo-16-.jpg  

Reply With Quote
  #396  
Old 08-28-2013, 12:18 PM
Silver Member
 
Join Date: Mar 2012
Location: NW Louisana
Posts: 318
Re: Anyone own a 7mm 300 Win Mag?

Quote:
Originally Posted by cockcroft View Post
Fire formed 20 pcs of brass yesterday. Shot one round then cleaned for most of them then shot some 3 shot groups cleaning between groups. groups were about 3/8. Fire form load was a little hot, velocities ran from 3267 to 3341 with a 150 SMK. Used 69 gr of RJ 19 and RWS brass. Will drop down to 65 gr or lower for the next fire forming secession.
Going to load some 168 and 180 VLD's with H1000 in the formed cases and work up a load.
For my purposes I think I will hunt with the 168's, deer and hogs mainly.
Want to run the 180's to max and check velocity just for grins.
My PTG reamer print #39452 has .188 free bore and a .316 neck, 30 degree shoulder and described as 7mm Practical.
Recoil with the Harrels brake was mild to say the least. Rifle weighs 13-4 so its not a mountain rifle. Built for Texas stand hunting.
Barrel is 27.5 in to crown plus brake.
Will check back after loads are worked up with velocity info.
Very impressive!!!! Glad to see that you are having good results! I've got a question though, I've heard ( to some existent ) both side of the SMK story about hunting with them. That being said, I'm setting my 7/300 up to shoot 180's! Is the 180SMK good for hunting? I'm really kinda parcel to Sierra, so I'm just asking! Thanks!!

DT
Reply With Quote
  #397  
Old 08-28-2013, 12:43 PM
Silver Member
 
Join Date: Jul 2007
Location: Huntsville Tx
Posts: 119
Re: Anyone own a 7mm 300 Win Mag?

I should have been more clear. I fire formed with SMK because they were laying around not being used for anything. My reamer has .188 free bore for Berger VLD's that I plan on hunting with. Also plan on trying AccuBond 160 gr in this rifle. My son has killed all kinds of deer and hogs with the accubond in his 7 ultra mag.
Really don't want to comment further and change this thread from the 7x300 to a bullet argument thread.
Mike
Reply With Quote
  #398  
Old 08-28-2013, 12:54 PM
Silver Member
 
Join Date: Mar 2012
Location: NW Louisana
Posts: 318
Re: Anyone own a 7mm 300 Win Mag?

Hey! I understand Mike! Thanks for the replie anyway! Guess I wasn't thinking straight! Anyway good shooting to ya! (I'll send ya a pm!)
Reply With Quote
  #399  
Old 08-28-2013, 01:15 PM
Silver Member
 
Join Date: Feb 2012
Location: eastern,wa
Posts: 453
Re: Anyone own a 7mm 300 Win Mag?

Nice groups. Lets hear about the 180's
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes



All times are GMT -5. The time now is 10:03 PM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC