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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
winchester model 70 coyote lite 7mm wsm
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<blockquote data-quote="bruce_ventura" data-source="post: 1052719" data-attributes="member: 34084"><p>Personally, I think 4831 is too fast for that round and caliber. I'm liking 7828-H1000 burn rates. </p><p></p><p>I have the same rifle in an HS Precision stock. I could not get Winchester factory e-tip ammo to shoot under 2" groups. Muzzle crown is good. I bedded the receiver and changed out trigger springs to get a 2-2.5 lb trigger pull. That didn't improve dispersion with factory ammo. </p><p></p><p>Initially I was getting 1-1.5" groups with handloads. I found a node at about 1 gr below max load with Nosler 168 gr CC. I was able to get them to shoot a ~0.5" 5-shot group with 69 gr H1000 and Fed 215 M. I haven't checked repeatability yet. Seating right on the lands seemed to help. </p><p></p><p>I'm not done with load development. I'll move on to 160 gr AB after I finish dialing in the CC bullets. It's a slow thoughtful process because I don't want to shoot out the barrel developing loads. </p><p></p><p>Good suggestion above to polish the bore. I will try that.</p></blockquote><p></p>
[QUOTE="bruce_ventura, post: 1052719, member: 34084"] Personally, I think 4831 is too fast for that round and caliber. I'm liking 7828-H1000 burn rates. I have the same rifle in an HS Precision stock. I could not get Winchester factory e-tip ammo to shoot under 2" groups. Muzzle crown is good. I bedded the receiver and changed out trigger springs to get a 2-2.5 lb trigger pull. That didn't improve dispersion with factory ammo. Initially I was getting 1-1.5" groups with handloads. I found a node at about 1 gr below max load with Nosler 168 gr CC. I was able to get them to shoot a ~0.5" 5-shot group with 69 gr H1000 and Fed 215 M. I haven't checked repeatability yet. Seating right on the lands seemed to help. I'm not done with load development. I'll move on to 160 gr AB after I finish dialing in the CC bullets. It's a slow thoughtful process because I don't want to shoot out the barrel developing loads. Good suggestion above to polish the bore. I will try that. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
winchester model 70 coyote lite 7mm wsm
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