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Seating Depth Berger 230 Hybrid OTM

 
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  #8  
Old 05-09-2012, 10:12 PM
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Re: Seating Depth Berger 230 Hybrid OTM

It looks as though I've hijacked the OP's thread. My apologies to the OP. As to the seating depth question in the OP. Yes IMO the posted seating depth to allow for magazine feeding will in all likelihood exihibit a couple problems for the OP that will be contrary to a reasonable level of accuracy. First the bullet will intrude IMO too far into the otherwise available powder space and compromise otherwise available velocity. Second, the bullets excessive, IMO, jump to the rifling will present a great opportunity for the bullet to yaw as it enters the rifling inconsistently from shot to shot. Again sorry for the miss-direction of the thread gentlemen. YMMV
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  #9  
Old 05-10-2012, 04:37 PM
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Re: Seating Depth Berger 230 Hybrid OTM

I am watching this post with interest. I am loading for a 300 RUM with the Berger 230 gr Hybrid target bullets and am wondering how others handle the calibers long freebore. I am seating .030" of the lands for my first loads with a COAL of 3.914. A max load of Retumbo as recommended by Berger is giving tidy 3 shot 100 yard groups of 1". Rifle is a Remington SPS stainless factory bedded in a boyds stock with timney trigger.
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  #10  
Old 05-12-2012, 10:03 AM
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Join Date: May 2012
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Re: Seating Depth Berger 230 Hybrid OTM

So I have a WBY MK5 with freebore and what is the minimum amount of bullet to leave in the case?
Also I have some 230 gn hybrids and some H1000 what load have you found the best as I have booked a 1200 yard rang for Wednesday and would really appreciate any help you can offer to tighten up my group

Christian
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  #11  
Old 05-12-2012, 11:43 AM
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Re: Seating Depth Berger 230 Hybrid OTM

Are you hoping to magazine feed or are you thinking in absolute terms? In a single loaded bench only setup you can seat the bullet out to within a .1" of the boattail on the bearing surface or until you get to the rifling. Only useful for load and shoot with no intention of carrying the gun as there is not sufficient neck tension to hold the bullet long term. You could end up with an action full of powder if you need to remove a loaded round as well. In my use of the 230 tactical OTM I've not found it necessary to get to carried away chasing the lands. That being said I am exceeding magazine length mostly because the shape of the bullet forward of the ogive being so much longer than "regular" bullets. YMMV
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  #12  
Old 05-13-2012, 03:54 PM
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Re: Seating Depth Berger 230 Hybrid OTM

So with the 230s what length are you using
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  #13  
Old 05-13-2012, 05:55 PM
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Re: Seating Depth Berger 230 Hybrid OTM

Quote:
Originally Posted by viola2572 View Post
So with the 230s what length are you using
In my 03a3 action 30/338 win mag I settled at 2.610" OAL.
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