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Rifles, Reloading, Optics, Equipment
Reloading
220 Swift loads--opinions
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<blockquote data-quote="Mike Matteson" data-source="post: 2012855" data-attributes="member: 101791"><p>I have a 220 Swift from early 70's. 1-14 twist rate 24 1/2"barrel. I used Sierra 55gr Spitzer, IMR 4060 39 grs with Rem 9 1/2 primers. Group at .3 or just a little under that @ 100yds. This load is from the first Sierra Reloading manual put out. New manual is showing a 1-10 twist rate. I didn't do anything special work to the cases. The rifle is Mauser 98 action with a 24 1/2" bow barrel. The new Sierra Manual is showing a 1-10 twist rate, using IMR 4060 35grs, WLR primers. I don't know if this the reason they reduce the powder load with IMR 4064 because if the twist rate is changed. For years with reloading manual after the 22-250 and others come out. They have reduce the loads in the 220 swift slowing it down. I kind of feel they were promoting there new cartridge, trying to show it was faster than the 220 swift. I used this rifle on ground squirrels from 200yds to 400yds. It wasn't fair to shot the ground squirrel under 200yds. For ever a 220 swift man. </p><p>P.S. Started down the road with Snowy MT Rifles for my 6mm/06 A.I. build. Rem. 700 action. Bartelin 400 H.P. 30" in a 1-7 straight twist.</p></blockquote><p></p>
[QUOTE="Mike Matteson, post: 2012855, member: 101791"] I have a 220 Swift from early 70's. 1-14 twist rate 24 1/2"barrel. I used Sierra 55gr Spitzer, IMR 4060 39 grs with Rem 9 1/2 primers. Group at .3 or just a little under that @ 100yds. This load is from the first Sierra Reloading manual put out. New manual is showing a 1-10 twist rate. I didn't do anything special work to the cases. The rifle is Mauser 98 action with a 24 1/2" bow barrel. The new Sierra Manual is showing a 1-10 twist rate, using IMR 4060 35grs, WLR primers. I don't know if this the reason they reduce the powder load with IMR 4064 because if the twist rate is changed. For years with reloading manual after the 22-250 and others come out. They have reduce the loads in the 220 swift slowing it down. I kind of feel they were promoting there new cartridge, trying to show it was faster than the 220 swift. I used this rifle on ground squirrels from 200yds to 400yds. It wasn't fair to shot the ground squirrel under 200yds. For ever a 220 swift man. P.S. Started down the road with Snowy MT Rifles for my 6mm/06 A.I. build. Rem. 700 action. Bartelin 400 H.P. 30" in a 1-7 straight twist. [/QUOTE]
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Reloading
220 Swift loads--opinions
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