Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Photography > Gun Photos


Reply

My Dad's 30/375 S.I. by Straight Shot Gunsmithing

 
LinkBack Thread Tools Display Modes
  #71  
Old 03-14-2014, 06:46 PM
Platinum Member
 
Join Date: Mar 2012
Location: ND
Posts: 2,767
Re: My Dad's 30/375 S.I. by Straight Shot Gunsmithing

Sure do, BTW 80 grains showed NO signs of the slightest bit of over pressure, i could likely go to 81-81.5 and be safe.
__________________

I'm 16
"Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth."
~George Washington

"The only advantage a light rifle has is weight, all other advantages go to the heavy rifle."
~ JE Custom

Biggest fail of 2014 so far... http://www.longrangehunting.com/foru...ea-ftf-128972/

My guess on W3P .308 230 Grain Bullet: G1 .740-.755
Reply With Quote
  #72  
Old 03-14-2014, 07:38 PM
Platinum Member
 
Join Date: Dec 2008
Location: Grantsville Utah
Posts: 3,473
Re: My Dad's 30/375 S.I. by Straight Shot Gunsmithing

Quote:
Originally Posted by barnesuser28 View Post
Sure do, BTW 80 grains showed NO signs of the slightest bit of over pressure, i could likely go to 81-81.5 and be safe.
Very nice Riley! I figure 81 grains is around max in mine. You can get more velocity with Retumbo, and may get as good of accuracy too. You will just have to try it. You can load about 83 grains of Retumbo for 3100'....Rich
Reply With Quote
  #73  
Old 03-14-2014, 07:42 PM
Platinum Member
 
Join Date: Dec 2008
Location: Grantsville Utah
Posts: 3,473
Re: My Dad's 30/375 S.I. by Straight Shot Gunsmithing

Quote:
Originally Posted by barnesuser28 View Post
Sure do, BTW 80 grains showed NO signs of the slightest bit of over pressure, i could likely go to 81-81.5 and be safe.
79 grains is around 2970' in my rifle......Rich
Reply With Quote
  #74  
Old 03-14-2014, 07:54 PM
Platinum Member
 
Join Date: Feb 2007
Location: Townsend, Montana.
Posts: 7,934
Re: My Dad's 30/375 S.I. by Straight Shot Gunsmithing

I will guess from a Magneto speed 79 gr and .042" OL from a 26" tube to be right at or either side of 3K.

From there I would definitely load for accuracy not velocity if sticking with the 215's. I draw that conclusions from what I have seen from my 300 win with them at 3035 fps average. Although I have never seen any entrance over .308" in the hide, they were fragmenting pretty violently at 300 < and we didn't start getting exits on elk until 500 +. The closest bull was at 200 yards and we got 26" of penetration entering in the crease and passing through the far shoulder but it was in the last inch or so of meat just under the hide. 1 1/4" wound channel with a pile of fragmented lead and a largely expanded jacket. Think of them as a swarm and killer bee's traveling in a swarm of death. LOL

Jeff
__________________
Reply With Quote
  #75  
Old 03-14-2014, 07:55 PM
Platinum Member
 
Join Date: Mar 2012
Location: ND
Posts: 2,767
Re: My Dad's 30/375 S.I. by Straight Shot Gunsmithing

I just ran three of the 79 grain over the magnetospeed from a clean cold bore. 2895, 2896, 2908, avg 2900, es 13. I think i can explain the higher one, when i was seating the bullets, one of them seated with almost no resistance, i had to do a double check to make sure i put a bullet in the case. 2895 should make one heck of a deer/elk rifle.
__________________

I'm 16
"Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth."
~George Washington

"The only advantage a light rifle has is weight, all other advantages go to the heavy rifle."
~ JE Custom

Biggest fail of 2014 so far... http://www.longrangehunting.com/foru...ea-ftf-128972/

My guess on W3P .308 230 Grain Bullet: G1 .740-.755
Reply With Quote
  #76  
Old 03-14-2014, 07:59 PM
Platinum Member
 
Join Date: Feb 2007
Location: Townsend, Montana.
Posts: 7,934
Re: My Dad's 30/375 S.I. by Straight Shot Gunsmithing

Hmmm much lower than I expected from what I have seen with them in a few 26" 300 wins. But by no means a slouch. It might be just the ticket to 1000.

Jeff
__________________
Reply With Quote
  #77  
Old 03-14-2014, 08:04 PM
Platinum Member
 
Join Date: Mar 2012
Location: ND
Posts: 2,767
Re: My Dad's 30/375 S.I. by Straight Shot Gunsmithing

I think the 30/375 S.I. Has more capacity than the 300 win so a little less pressure with the same amount of powder. I am perfectly happy with 2895 fps, anything past the capabilities of this round it will be time to pull out the 338.
__________________

I'm 16
"Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth."
~George Washington

"The only advantage a light rifle has is weight, all other advantages go to the heavy rifle."
~ JE Custom

Biggest fail of 2014 so far... http://www.longrangehunting.com/foru...ea-ftf-128972/

My guess on W3P .308 230 Grain Bullet: G1 .740-.755
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes



All times are GMT -5. The time now is 12:35 AM.


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