Saubier.com  



Go Back   Saubier.com > Saubier.com Forums > Small Caliber Discussion Board

Reply
 
Thread Tools Display Modes
  #1  
Old 01-14-2020, 12:42 AM
DeadWoodDan DeadWoodDan is offline
Junior Member
 
Join Date: Jan 2018
Posts: 9
Default 20 Practical_39gr SBK

Trying to find the most accurate load, currently using IMR8208 and curious to know how deep everyone is seating the 39SBK? My barrel has a long throat and bullet just sits inside the neck when touching the rifling. Looks like I can seat the bullet just enough to get at least a .040" jump.

Savage M12 Action
Criterion 26" 1:11
Weaver T36
Reply With Quote
  #2  
Old 01-14-2020, 05:46 PM
GrocMax GrocMax is offline
Senior Member
 
Join Date: Oct 2012
Location: McKinney TX
Posts: 488
Default

Both the 40vmax and 39bk worked best for me around .010"-.020" off, but with a long throat you're just going to have to find the decent jump lengths. Don't be afraid to make it jump a bunch, if it works, who cares? Not the target.
Reply With Quote
  #3  
Old 01-15-2020, 04:21 PM
moorepower moorepower is offline
Senior Member
 
Join Date: Mar 2011
Posts: 1,549
Default

Have you loaded it to magazine length and pulled the trigger yet? You might be surprised.
Reply With Quote
  #4  
Old 01-15-2020, 05:15 PM
coyotespotter coyotespotter is offline
Senior Member
 
Join Date: Aug 2014
Posts: 329
Default

My 20p is an AR, so magazine length restrictions. Nosler 40@ 2.210 coal
Berger 35 @ 2.167 coal(these I have currently in ammo box for coyote)
My notes Sierra @ 2.150 was touching the lands but I don't have any loaded to check. Nosler I'm running, 0.025 off lands. So I would start 2.125 with the Sierra in my BHW barrel. I'm about 0.080 off with the Bergers.
Reply With Quote
  #5  
Old 01-15-2020, 07:27 PM
DeadWoodDan DeadWoodDan is offline
Junior Member
 
Join Date: Jan 2018
Posts: 9
Default

Quote:
Originally Posted by moorepower View Post
Have you loaded it to magazine length and pulled the trigger yet? You might be surprised.
No magazine in this build, single stack/blind mag.
Reply With Quote
  #6  
Old 01-15-2020, 07:32 PM
DeadWoodDan DeadWoodDan is offline
Junior Member
 
Join Date: Jan 2018
Posts: 9
Default

I have another load worked up just seating the bullet enough to maximize case neck and still have a little room left in the shoulder, not much. Neck length is about 0.210" give or take.
Reply With Quote
  #7  
Old 01-16-2020, 01:36 AM
Hog Patrol Hog Patrol is offline
Senior Member
 
Join Date: Sep 2011
Location: DE
Posts: 1,481
Default

I jump j.010 on the bolt gun, same as the AR version. My reamer has zero freebore. Who did the barrel job and why is there so much freebore?
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 07:36 AM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.