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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Accuracy Issues / New 7mm Mag Win Model 70 Ultimate Shadow
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<blockquote data-quote="Shortmagman" data-source="post: 1258101" data-attributes="member: 10723"><p>My thought is the barrel is not broken in yet. The barrel is still very rough so I would start over and shoot one shot and clean until you do not get the copper that you are seeing.</p><p></p><p>I bought a Wichester Model 70 Coyote in 300WSM a number of year ago and my first three shot groups were in the 21/2 to 3 inch range. I kept shooting the gun but the thing I think got the gun to shoot was J-B bore paste. I followed the directions and ran a patch covered with the paste through the barrel about 75 times. I loaded some 165 Nosler Partitions and RL-19 powder and I could not believe how well that gun shot. I also loaded some Sierra match bullets and this gun shot lights out.</p><p> That gun is one of the best shooting factory guns that I have seen. My son-in-law loved this gun. He shot a five shot group that measured about a quarter of an inch at 100yd using Sierra Match bullets.</p><p></p><p>This is his 5 shot group at 100 yards using Norma brass, 155 Sierra Match bullets, and RL-19 powder. We could not match his group, but it will shot a good load into 3/4 of and inch or less. So you can still get the gun to shoot if there is nothing major wrong with it.</p></blockquote><p></p>
[QUOTE="Shortmagman, post: 1258101, member: 10723"] My thought is the barrel is not broken in yet. The barrel is still very rough so I would start over and shoot one shot and clean until you do not get the copper that you are seeing. I bought a Wichester Model 70 Coyote in 300WSM a number of year ago and my first three shot groups were in the 21/2 to 3 inch range. I kept shooting the gun but the thing I think got the gun to shoot was J-B bore paste. I followed the directions and ran a patch covered with the paste through the barrel about 75 times. I loaded some 165 Nosler Partitions and RL-19 powder and I could not believe how well that gun shot. I also loaded some Sierra match bullets and this gun shot lights out. That gun is one of the best shooting factory guns that I have seen. My son-in-law loved this gun. He shot a five shot group that measured about a quarter of an inch at 100yd using Sierra Match bullets. This is his 5 shot group at 100 yards using Norma brass, 155 Sierra Match bullets, and RL-19 powder. We could not match his group, but it will shot a good load into 3/4 of and inch or less. So you can still get the gun to shoot if there is nothing major wrong with it. [/QUOTE]
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Accuracy Issues / New 7mm Mag Win Model 70 Ultimate Shadow
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