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Long Range Hunting & Shooting
Someone talk me out of a 6.5mm STW
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<blockquote data-quote="Wookie316" data-source="post: 343151" data-attributes="member: 18820"><p>Many ask me about the scope height issue. If you met me in person you would understand. The stock is a 14 1/2" LOP & for the scope to give me instant visual when I shoulder it needs to be high. I had low mounts, but they were too unnatural for me. You have to use what works, & this works for me. Oh my cheek does touch the comb too!</p><p></p><p>This rifle started life as a 26" 264 Win Mag. For some reason I was getting hard extractions on once fired brass whether it was neck sized or F/L sized? I dropped my load way down. I started at 74gr H870 which was @ 3220 FPS, right where I wanted to be. But with tight extractions, that wasn't going to work. I dropped back all the way to 70gr H870 which put me in the 3000 FPS range & was still having problems? Didn't build a 264 WM to shoot 3000 FPS with a 140gr. My as well be shooting a 30/06 at that point. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite11" alt=":rolleyes:" title="Roll Eyes :rolleyes:" loading="lazy" data-shortname=":rolleyes:" /></p><p>Took it back to the gunsmith, he figured it was brass, but I tried 3 different kinds of brass. Rem, Win & Nosler, results all very similar. He pulled the barrel & found a very tiny little burr on the belt but figured that shouldn't cause the problem.</p><p>Not wanting to waste any more time with it & chance thet burr as the problem, I explored my options. He had a 6.5mm STW reamer & this 6.5mm - 300 Win Mag reamer. Wanting to seat my bullet out decent & with a goal of 3250 FPS with a 140gr, I figured a 6.5mm - 300 Win Mag would do the trick. </p><p>Just guessing at where to start, I tried 79gr H870. This gave me 3274 FPS. The 1 trip I have made it to the range since completion I shot this group. Keep in mind it was -31 that day, so I am super pumped about what it should do when I can get to the range & concentrate. This group was hurried for obvious reasons <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /> The last 3 shots were the lower left ones.</p><p></p><p><img src="http://i566.photobucket.com/albums/ss108/jhowdle/_JAY6010.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>From the short time I have had this rifle it looks to me you can edge the 26" 264 Win Mags performance by around 50-60 FPS in a barrel that is 2" shorter.</p><p></p><p>It does have a wicked muzzle flash though <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="Wookie316, post: 343151, member: 18820"] Many ask me about the scope height issue. If you met me in person you would understand. The stock is a 14 1/2" LOP & for the scope to give me instant visual when I shoulder it needs to be high. I had low mounts, but they were too unnatural for me. You have to use what works, & this works for me. Oh my cheek does touch the comb too! This rifle started life as a 26" 264 Win Mag. For some reason I was getting hard extractions on once fired brass whether it was neck sized or F/L sized? I dropped my load way down. I started at 74gr H870 which was @ 3220 FPS, right where I wanted to be. But with tight extractions, that wasn't going to work. I dropped back all the way to 70gr H870 which put me in the 3000 FPS range & was still having problems? Didn't build a 264 WM to shoot 3000 FPS with a 140gr. My as well be shooting a 30/06 at that point. :rolleyes: Took it back to the gunsmith, he figured it was brass, but I tried 3 different kinds of brass. Rem, Win & Nosler, results all very similar. He pulled the barrel & found a very tiny little burr on the belt but figured that shouldn't cause the problem. Not wanting to waste any more time with it & chance thet burr as the problem, I explored my options. He had a 6.5mm STW reamer & this 6.5mm - 300 Win Mag reamer. Wanting to seat my bullet out decent & with a goal of 3250 FPS with a 140gr, I figured a 6.5mm - 300 Win Mag would do the trick. Just guessing at where to start, I tried 79gr H870. This gave me 3274 FPS. The 1 trip I have made it to the range since completion I shot this group. Keep in mind it was -31 that day, so I am super pumped about what it should do when I can get to the range & concentrate. This group was hurried for obvious reasons :D The last 3 shots were the lower left ones. [IMG]http://i566.photobucket.com/albums/ss108/jhowdle/_JAY6010.jpg[/IMG] From the short time I have had this rifle it looks to me you can edge the 26" 264 Win Mags performance by around 50-60 FPS in a barrel that is 2" shorter. It does have a wicked muzzle flash though :D [/QUOTE]
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Someone talk me out of a 6.5mm STW
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