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Hunting
Long Range Hunting & Shooting
Resizing 30.378 weatherby down to 7mm or 8mm
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<blockquote data-quote="DUCKMAN11" data-source="post: 2603828" data-attributes="member: 122313"><p>I'm out on the 7mm-378. If a 30-378 is a "Cadillac" then a 7mm-378 is something with the word NASA painted on the doors! Too much to go wrong. Meaning that.... in my experience..... cartridges that are overbore and extremely overbore tend to have very narrow accuracy nodes. I have a 25-06 that prints ragged 1 hole groups at 45° and opens up to 3/4moa at 90° with retumbo and 115vld's. Meanwhile one of my friends has a 6.5x47 that shoots one hole groups with powder charges that span 1.5gr of powder and 125fps. He can literally load sub moa rounds with a scoop, Meanwhile I'm counting kernels. There are not a lot of 8mm bullets out there but there are a few good ones. If it were me I'd be looking at 375" projectiles if you don't already have a 338x378wby. If you don't have a 338x378wby rifle then it would be my first choice.</p><p></p><p>As far as dies go to neck up or down.... just get a set of FL bushing dies from redding and an expander mandrel and get ready to neck turn.</p></blockquote><p></p>
[QUOTE="DUCKMAN11, post: 2603828, member: 122313"] I'm out on the 7mm-378. If a 30-378 is a "Cadillac" then a 7mm-378 is something with the word NASA painted on the doors! Too much to go wrong. Meaning that.... in my experience..... cartridges that are overbore and extremely overbore tend to have very narrow accuracy nodes. I have a 25-06 that prints ragged 1 hole groups at 45° and opens up to 3/4moa at 90° with retumbo and 115vld's. Meanwhile one of my friends has a 6.5x47 that shoots one hole groups with powder charges that span 1.5gr of powder and 125fps. He can literally load sub moa rounds with a scoop, Meanwhile I'm counting kernels. There are not a lot of 8mm bullets out there but there are a few good ones. If it were me I'd be looking at 375" projectiles if you don't already have a 338x378wby. If you don't have a 338x378wby rifle then it would be my first choice. As far as dies go to neck up or down.... just get a set of FL bushing dies from redding and an expander mandrel and get ready to neck turn. [/QUOTE]
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Long Range Hunting & Shooting
Resizing 30.378 weatherby down to 7mm or 8mm
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