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caliber choice choice with reasoning

 
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  #8  
Old 09-25-2012, 07:19 PM
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Re: caliber choice choice with reasoning

I think your numbers are pretty good winmag. I picked 300win just cause. If 300 H&H was an option I like it best. I've never had much trouble getting 2900fps with 200gr bullets, and case capacity is very close to WSM. Velocity in similar actions and barrel lengths etc. they run fairly close with selected handloads.
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Old 09-26-2012, 07:17 AM
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Re: caliber choice choice with reasoning

300 win is about the only one I'd build of the list you have. But I already have a good 300 win, so I'm not in the market. I use a 165 hornady at 3280 fps in mine, but it will take a 180 to 3150 fps and a 200 to 2950-3000 fps depending on load.

Why don't you think of the 300 rum?? A savage LA will go to 3.6" won't it?? 3300 fps is easy for a 180 in a rum.
If you build a 7, think about the stw.
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Old 09-26-2012, 08:35 AM
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Re: caliber choice choice with reasoning

I like the long action short case idea, a 300 WSM set up for optimum performance with a bullet that can take advantage of the room like the 210 Berger or maybe the 215 Berger, I'm not a 7mm fan in any form BUT the 7SAUM really interests me and set up in a long action with a longish barrel and set up with a 180 Berger it would really be interesting. The WSM and SAUM cases are efficient cases and are beltless which is all things I personally like and then setting them up to maximize performance in a long action, how could a guy go wrong!
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Old 09-26-2012, 09:59 AM
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Re: caliber choice choice with reasoning

Quote:
Originally Posted by deathwobble View Post
.300 wsm is a sweet one too but it wont out run its big bro. .300WM should run a full 200 fps faster. Kinda like comparing the 30-06 to the .308. also the shorter fatter case makes it inherently more sensitive to minor changes in loads also may not feed as reliably due to the sharp profile of the case.... Also theres after market bottom metal available that should fit big heavy bullets seated long ...any way good luck with your build all the choices you listed are all very capable of doing what you want.
may be correct for factory loads but winmag has a good point. I have both and the only time the win mag has an edge over the wsm is with very heavy bullets and the edge is so small its not worth comparing.
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Old 09-26-2012, 10:08 AM
Edd Edd is offline
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Re: caliber choice choice with reasoning

Isn't it neat how those short fat cases come with a magic wand. Maybe someone could list the reasons, except by increasing pressure, how a case with less capacity can give equal or better velocity.
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Old 09-26-2012, 11:37 AM
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Re: caliber choice choice with reasoning

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Originally Posted by Lefty7mmstw View Post

Why don't you think of the 300 rum?? A savage LA will go to 3.6" won't it?? 3300 fps is easy for a 180 in a rum.
If you build a 7, think about the stw.
Not entirely sure just how long you can run as a single shot in the Savage LA but through the magazine you're limited to 3.6", lots of people build .300RUM's and .338 EDGE's on savages. I actually had considered building a .300 RUM as a single shot, but everything I've read has said they have horrible barrel life(under 1000rnds).

If I went .300 WSM i was looking at running the 208 A-Max, or the 215 berger hybrids to 2750-2800 if i can. Where if i go .300WM i'm looking to launch the 230's to 2700-2750. From the reading I've done either of these should be achievable with a 28" barrel.
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  #14  
Old 09-26-2012, 05:30 PM
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Re: caliber choice choice with reasoning

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Originally Posted by Edd View Post
Isn't it neat how those short fat cases come with a magic wand. Maybe someone could list the reasons, except by increasing pressure, how a case with less capacity can give equal or better velocity.
Could be because many of the larger cases were overhyped from the start. Factors like barrel length, actual case capacity with a bullet seated play into it. It's not too difficult to find loading manuals where looking at only top velocity the 300 H&H may come out ahead. Mild factory loadings can make the difference seem larger than it is. When loaded to similar pressures it takes a fair amount of capacity to equate into a meaningful change.
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