Long Range Hunting Online Magazine


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


Reply

Preping to Play with 300gr Berger Hybrids

 
LinkBack Thread Tools Display Modes
  #1  
Old 06-03-2010, 07:30 PM
Platinum Member
 
Join Date: Jan 2004
Location: Blackfoot, Idaho
Posts: 8,064
Preping to Play with 300gr Berger Hybrids

The Berger 338 Hybrids came from 3rd Gen the other day an all I've done is oogle at them.

They look to have spent a bunch of time in the polisher. Don't don't know if that's good or bad. Though I don't like to see jackets any thinner than they need to be.

Cosmetically they win the beauty contest with the SMK. However, from the many SMKs that have penetrated my 8" very fine sand backstop the Bergers will have perform pretty well to keep up. If the sand contains any moisture at all, the second shot out of the RUM always completes penetration. I have to wack the backstop with a sledge hammer between shots to keep bullets contained. (I've since piled lava rocks behind the backstop to contain things)

The Hybrids are definitely long. About 0.090" longer than the SMK with a bearing surface that is about 0.009 shorter. Diameter of the Hybrid is slightly less than that of the SMK.

When seating both bullets on the lands (for the first setting for the Hybrids) the cartridge base to ogive measurement is an average of 3.052 for the SMK and 3.125 for the Hybrid. I'm a little confused by the difference in these numbers as I let the chamber seat both bullets in a dummy case.

The attached pic shows the Bergers produce a longer overall cartridge length. The appearance is exaggerated a bit by the angle of the camera and placement of the SMKs in the next row back of the loading block. The overall length of the Hybrids is 3.9 inches (just barely long enough to prevent fully extracting a loaded round with out releasing the bolt. The SMKs overall length is is 3.8" a full 0.10" shorter.

As the bearing surface and diameter of the Hybrid is a bit smaller than that of the SMK I figure I'm safe in using the powder charge that has been developed for the SMK.

I'll shoot these six shots tomorrow in a round robin fashion and see what happens.


Last edited by royinidaho; 06-03-2010 at 11:20 PM.
Reply With Quote
  #2  
Old 06-03-2010, 08:14 PM
Platinum Member
 
Join Date: Nov 2003
Location: Washington State
Posts: 2,455
Re: Preping to Play with 300gr Berger Hybrids

It'll be very interesting to see how these compare in your sand penetration tests...

-----------

Roy--haven't heard that you received your 375AM yet...? Figured we'd all know if you did! Kirby says my 338AX will be ready today or tomorrow and then he'll get out for range testing...it's been nearly a year and a half since I started gathering parts for this thing...

--------------------

On another note (don't want to hijack here, Roy) but, has anybody used LoadBase and gone between using velocity banded G1 and G7 data and compared the drop output of the program vs. actual drop at 1k+, for instance...??
__________________
In the beginning God created the heavens and the earth. Genesis 1:1

"And can the liberties of a nation be thought secure when we have removed their only firm basis, a conviction in the minds of the people that these liberties are the gift of God?" Thomas Jefferson - Notes on the State of Virginia

www.wildsidesystems.com - Shelter for Your WildSide - http://www.youtube.com/watch?v=tYwgo...&feature=g-upl

Last edited by jmden; 06-03-2010 at 08:19 PM.
Reply With Quote
  #3  
Old 06-03-2010, 08:30 PM
Platinum Member
 
Join Date: Dec 2009
Location: Redmond Or.
Posts: 2,527
Re: Preping to Play with 300gr Berger Hybrids

[QUOTE=royinidaho;396496]

The attached pic shows the Bergers produce a longer overall cartridge length.

Wheres the attached pic Roy? Sounds like your gonna have fun. Cant wait to see the results.
Does this mean your putting the testing of your''woof-whackers'' on hold?
__________________
"Its not Rocket Surgery.....'
GOD,GUNS,&GUTTS MADE AMERICA, LETS KEEP ALL 3!winmag

"I have No idea why that cop made me ride in the back seat, when I Clearly called Shotgun!"
Reply With Quote
  #4  
Old 06-03-2010, 08:38 PM
Platinum Member
 
Join Date: Feb 2008
Location: IOWA
Posts: 1,864
Re: Preping to Play with 300gr Berger Hybrids

pics ?
Reply With Quote
  #5  
Old 06-03-2010, 11:25 PM
Platinum Member
 
Join Date: Jan 2004
Location: Blackfoot, Idaho
Posts: 8,064
Re: Preping to Play with 300gr Berger Hybrids

oops!! Senior moment...... Pic is there .......now

jmden,

Kirby has had all the parts for quite awhile maybe a year. Including scope mounts, scope, trigger, A-5, action, barrel and level. I'm just standing by with aggressive patience.

It should be soon. I'm going to email him to see how long of a hard case is needed to fit that sucker....
Reply With Quote
  #6  
Old 06-04-2010, 12:31 PM
Platinum Member
 
Join Date: Dec 2009
Location: Redmond Or.
Posts: 2,527
Re: Preping to Play with 300gr Berger Hybrids

Nice pic Roy. They both look neat, now its time to see if they shoot as good as they look. Awaiting results.
__________________
"Its not Rocket Surgery.....'
GOD,GUNS,&GUTTS MADE AMERICA, LETS KEEP ALL 3!winmag

"I have No idea why that cop made me ride in the back seat, when I Clearly called Shotgun!"
Reply With Quote
  #7  
Old 06-04-2010, 06:45 PM
Platinum Member
 
Join Date: Jan 2004
Location: Blackfoot, Idaho
Posts: 8,064
Re: Preping to Play with 300gr Berger Hybrids

Darned rain. Wanted to get some shots in today. No such luck. Rain!! Every time I started dragging stuff to the range behind the house it began to rain like a cow peeing on a flat rock!!

So, helped son on the theater room remodel. Gonna watch LRH vids between sun shine moments.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Preping to Play with 300gr Berger Hybrids
Thread Thread Starter Forum Replies Last Post
Berger 30cal hybrids? wanna-be-sniper Rifles, Bullets, Barrels and Ballistics 10 01-30-2011 09:55 PM
Need load info 338 wm for berger 300 hybrids ScooterDad Reloading 0 10-04-2010 12:03 AM
WTT 300gr SMKs for 300 br Hybrids royinidaho Reloading Equipment and Components 3 07-07-2010 08:35 PM
338 Berger Hybrids canderson Reloading Equipment and Components 3 06-27-2010 07:35 PM
7mm Berger hybrids Jumpalot Rifles, Bullets, Barrels and Ballistics 2 06-24-2010 08:07 PM

Current Poll
In the last 12 months, what was your longest rifle kill on big game?
0 to 200 yards - 26.00%
1,546 Vote
201 to 400 yards - 32.16%
1,912 Vote
401 to 600 yards - 23.02%
1,369 Vote
601 to 800 yards - 10.02%
596 Votes
801 to 1,000 yards - 3.90%
232 Votes
Over 1,000 yards - 4.89%
291 Votes
Total Votes: 5,946
You may not vote on this poll.

All times are GMT -5. The time now is 11:43 PM.


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