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Long Range Hunting & Shooting
.270Wby Conversion to .270WSM
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<blockquote data-quote="Guest" data-source="post: 11377"><p>I reload for a buddies 270Wby , he shoots the 140gr Nosler Ballistic Tip , the load is 73.5gr of H4831sc , fire formed brass that only has about 3/4 of the neck resized , bullet is seated .07 off the lands</p><p>He gets great accuracy and the velocity out of a 26" barrel is just over 3100fps , not smokin fast but it is very accurate.</p><p> at 500yds this combo is still holding over 1300lbs of energy , which should be all a mule deer can stand.</p><p></p><p> As far as rechambering to 270wsm , I believe that you'ld be better off just rebarreling to that chamber. OR rechambering to a wildcat in the 270 family that is bigger cased than the 270Wby</p><p> But first off , I'd rty having the barrel set back a bit and rechamber to the 270Wby again but have the throat cut so it doesen't have the "free bore" that Wby puts in their guns , this will help find an accurate load as you can seat the bullets out to closer to the lands.</p><p> The Belt on a magnum case is not a bad thing and it realy isin't a problem to reload for you just have to learn to work around it , buy only neck sizing your cases you make your case headspace off the shouler instead of the belt and by only neck sizing 3/4 of the neck this helps hold the case in perfect alignment with you chamber. Look at all the 1000yd BR shooters that are shooitng 300 Ackly and such , they have belted cases.</p></blockquote><p></p>
[QUOTE="Guest, post: 11377"] I reload for a buddies 270Wby , he shoots the 140gr Nosler Ballistic Tip , the load is 73.5gr of H4831sc , fire formed brass that only has about 3/4 of the neck resized , bullet is seated .07 off the lands He gets great accuracy and the velocity out of a 26" barrel is just over 3100fps , not smokin fast but it is very accurate. at 500yds this combo is still holding over 1300lbs of energy , which should be all a mule deer can stand. As far as rechambering to 270wsm , I believe that you'ld be better off just rebarreling to that chamber. OR rechambering to a wildcat in the 270 family that is bigger cased than the 270Wby But first off , I'd rty having the barrel set back a bit and rechamber to the 270Wby again but have the throat cut so it doesen't have the "free bore" that Wby puts in their guns , this will help find an accurate load as you can seat the bullets out to closer to the lands. The Belt on a magnum case is not a bad thing and it realy isin't a problem to reload for you just have to learn to work around it , buy only neck sizing your cases you make your case headspace off the shouler instead of the belt and by only neck sizing 3/4 of the neck this helps hold the case in perfect alignment with you chamber. Look at all the 1000yd BR shooters that are shooitng 300 Ackly and such , they have belted cases. [/QUOTE]
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.270Wby Conversion to .270WSM
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