Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Reloading

Reloading Techniques For Reloading


Reply

Getting weird flyers with Berger 300gr OTMs

 
LinkBack Thread Tools Display Modes
  #1  
Old 06-09-2013, 08:04 PM
Platinum Member
 
Join Date: Dec 2011
Location: Michigan
Posts: 1,078
Getting weird flyers with Berger 300gr OTMs

This is an abridged version of my issue taken from a review I posted in the R,B,B,B forum earlier. Short story:

Got a new 338LM. Shot 6 groups (3 rd, 100yd) using 300gr Scenars doing a ladder test for OAL. Results were very good, and only one of the groups had what I considered to be a flyer (1" from his friends). Overall average <0.5". Shoots great.

I switched to Berger 300gr OTMs, same test. The mag length loads were a horrible catastrophe and I won't count them here. The 4 groups I shot (two 40thou off and two touching the lands) were maddeningly inconsistent. Worth noting that the flyers showed up randomly (either of the 3 shots, one low, one high/right, one left)

Two groups had 2 shots touching and then a major flyer (1.5 to 2.5")

One group had two shots within 0.5" and a major flyer

The final group was one hole. Not even ragged. Damn near perfect.

So: did I get sloppy and basically suck it up to where I started mixing flyers in to every group, or is it possible for these pills to shoot almost perfect and randomly fly way off course?

Let me know your experience, and feel free to blame the operator.

Thanks
Reply With Quote
  #2  
Old 06-09-2013, 08:09 PM
Platinum Member
 
Join Date: Feb 2007
Location: Townsend, Montana.
Posts: 7,807
Re: Getting weird flyers with Berger 300gr OTMs

May I suggest you try a group with them at 200?

They have shot great in every 338 I loaded them in. But sometimes shoot the same size group at 200 or even tighter.

Jeff
__________________
Reply With Quote
  #3  
Old 06-09-2013, 08:30 PM
Gold Member
 
Join Date: Apr 2012
Location: California Central Cost
Posts: 853
Re: Getting weird flyers with Berger 300gr OTMs

weight sorted bullets?
weight sorted brass?
annealed necks?
turned necks?
neck sized?
tip (meplat) trimmed bullets?
pointed bullets?
regular match primers?

With my 300WSM, 260 and 223 I had already been weight sorting, the biggest thing that helped was regular match primers and neck turning. Annealing helped too but my first 200 yard cloverleaf was after switching to regular match primers and neck turning.

BTW: 338 is in the build phase.
__________________
Fred Seaman
“Ask, Listen, Learn, Grow”
Reply With Quote
  #4  
Old 06-09-2013, 09:19 PM
Platinum Member
 
Join Date: Dec 2011
Location: Michigan
Posts: 1,078
Re: Getting weird flyers with Berger 300gr OTMs

Broz: thanks for the response. I will definitely load up some more and move back. The groups are just so non-uniform. 3 of the 4 looked like the group at the top. Looking at just the one I would think shooter error - but 3 out of 4 with one big flyer (in different directions) is suspect. Stranger things have happened.



JFSeaman: I am weight sorting bullets and brass, brass is new Lapua trimmed and neck sized, federal 215M primers. I do not neck turn. The main point of my question is that the Lapua Scenars (same brass, charge, powder, etc) had no flyers whatsoever. Switched to testing the OTMs and it was like I flipped a switch -BUT- the fact that the groups are two-thirds tight has me questioning myself.
Attached Thumbnails - Click to View Larger
Getting weird flyers with Berger 300gr OTMs-image.jpg  
Reply With Quote
  #5  
Old 06-09-2013, 09:28 PM
Platinum Member
 
Join Date: Feb 2007
Location: Townsend, Montana.
Posts: 7,807
Re: Getting weird flyers with Berger 300gr OTMs

What scope and what rail?

This does not look like a bullet issue, at this point I am guessing rifle problem, scope or mount and shooter.

Jeff
__________________
Reply With Quote
  #6  
Old 06-09-2013, 09:29 PM
Platinum Member
 
Join Date: Mar 2012
Location: ND
Posts: 2,712
Re: Getting weird flyers with Berger 300gr OTMs

Scope mounts tight? I would give them another test to confirm, maybe you were fatigued?
__________________

I'm 15
"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/
Reply With Quote
  #7  
Old 06-09-2013, 10:04 PM
Platinum Member
 
Join Date: Dec 2009
Location: NW MT
Posts: 2,587
Re: Getting weird flyers with Berger 300gr OTMs

I have fought the Bergers in other rifles. My 257 weatherby would shoot 4-6 '' at 100 and a Barnes tsx would bug hole same load. But I got the otms to shoot in my 338 Norma. I guy I now that shoot in 1000 bench shot crazy tight groups with Scenars 250 Gr, in a Trg and could never get the Bergers to touch them. He spent alot of time and has posted 100 score targets at 1000 bench.I doubt your scope when onegroups and another doesnt
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Current Poll
Do you archery hunt for elk?
YES - 33.08%
44 Votes
NO - 51.13%
68 Votes
Not yet, but I plan to. - 15.79%
21 Votes
Total Votes: 133
You may not vote on this poll.

All times are GMT -5. The time now is 09:35 PM.


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