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The Basics, Starting Out
I'm Stumped and need help
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<blockquote data-quote="Bravo 4" data-source="post: 1097246" data-attributes="member: 8873"><p>The 9.5 twist in your 7mag Sako should stabilize the 168 class bullets, but if they are not stable and leaving oblong holes (keyholing) on the target there is something wrong. It sounds like the bullets are stable, or they more than likely wouldn't be grouping so well for a couple/few shots at 200 yards and then sending fliers. Sounds like the groups are opening up due to the barrel heating. Now if the rounds were just not grouping or the zero keeps wandering I would suspect the scope first (or the rings/mounts slipping or such).</p><p>Sometimes rifles are just freaking picky. I was shooting an old sporterized 1903 Springfield 30-06 yesterday. This thing hasn't had a box of rounds put through it in 30 years so I don't know what it likes. I cleaned the barrel and proceeded to put an untold number of rounds with different powder, primer and seating depths for four different premium bullets of different weights. It was grouping 5-6" with one bullet, 3-4" with another and the best any of them did was 2". But not consistently. I had given up and was putting everything away and found half a box of cheap 180 grain Federal classics. I thought what could it hurt at this point, a three shot group printed well under an inch @ 100. I thought it was a fluke, so I make a quick scope adjustment and hit the small dot sticker I was using for an aiming point three times in a row.</p><p>Point is sometimes they just like what they like and not what you want. Keep trying, you never know.</p></blockquote><p></p>
[QUOTE="Bravo 4, post: 1097246, member: 8873"] The 9.5 twist in your 7mag Sako should stabilize the 168 class bullets, but if they are not stable and leaving oblong holes (keyholing) on the target there is something wrong. It sounds like the bullets are stable, or they more than likely wouldn't be grouping so well for a couple/few shots at 200 yards and then sending fliers. Sounds like the groups are opening up due to the barrel heating. Now if the rounds were just not grouping or the zero keeps wandering I would suspect the scope first (or the rings/mounts slipping or such). Sometimes rifles are just freaking picky. I was shooting an old sporterized 1903 Springfield 30-06 yesterday. This thing hasn't had a box of rounds put through it in 30 years so I don't know what it likes. I cleaned the barrel and proceeded to put an untold number of rounds with different powder, primer and seating depths for four different premium bullets of different weights. It was grouping 5-6" with one bullet, 3-4" with another and the best any of them did was 2". But not consistently. I had given up and was putting everything away and found half a box of cheap 180 grain Federal classics. I thought what could it hurt at this point, a three shot group printed well under an inch @ 100. I thought it was a fluke, so I make a quick scope adjustment and hit the small dot sticker I was using for an aiming point three times in a row. Point is sometimes they just like what they like and not what you want. Keep trying, you never know. [/QUOTE]
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