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Bullet for a 1-12" twist 300 Weatherby?

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Bullet for a 1-12" twist 300 Weatherby?

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Old 06-10-2019, 07:34 PM
  #1  
Typical Buck
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Default Bullet for a 1-12" twist 300 Weatherby?

After fixing my late grandfather's 300 Weatherby, I decided I wanted to attempt to take a deer with it this upcoming season. I'm trying to decide on a bullet to use. The problem is, the old German-made Weatherby is a 1-12" twist. As I discovered while shooting various handloads, it doesn't shoot 180 grain bullets well at all, but it'll group 150 grain SST's in about an inch at 100 yards.

I'm looking for a bullet that will provide good terminal performance out to 300 yards or more, but will work in a 1-12" twist. Here's a few I've been looking at trying:

150 grain Hornady SST
130 or 150 grain Barnes TTSX
155 or 168 grain Berger VLD

Definitely open to other suggestions. I know, I know, I should go with the one that shoots best in my rifle. I'm just looking for a good place to start.
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Old 06-11-2019, 02:35 AM
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Any bullet in that weight class should work.
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Old 06-11-2019, 04:26 AM
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I've shot deer with both the sst a ttsx in both weights. All have performed well. Although not at .300 wby velocity. I've loaded those for .30-06 and .300 Savage. Rather slow in comparison.

I am glad you decided to take a deer with it. I have rifles from both my grandpa's and I try to get them out every few years and put them to work in the woods.

-Jake
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Old 06-11-2019, 04:55 AM
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https://bergerbullets.com/twist-rate-calculator/

https://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi

https://www.barnesbullets.com/bullets/tsx/#30347
the barnes 150 tsx works well in my experience,
deer are rather easy too kill if the shots placed well, and if you get decent penetration,
a 300 wby is at shorter ranges...a bit over-kill but at long range ,
its certainly a good option
your certainly not the first guy to find that the slower twist rate on some rifles prevents accurate use of some heavier bullet options
on deer its not a big handicap using the 150 grain bullets as rapid expansion is devastatingly effective on mid (B) or lower chest hits,(C) to heart/lungs


Last edited by hardcastonly; 06-13-2019 at 06:45 AM.
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Old 06-12-2019, 06:03 AM
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I would try the mid-weight (150-165) Accubond. If you go with a Barnes bullet the TTSX would be my choice - not the TSX. I have given up on the older TSX for 30 caliber and smaller cartridges.

Are you loading near the max velocity, or are you trying to find something just a bit slower?
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