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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Wildcats on a .375 Ruger case?
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<blockquote data-quote="moombaskier" data-source="post: 520431" data-attributes="member: 7841"><p>OK guy's here are some pics. All groups shot at 200yds. 1rst group shot through rifle was 73.0grs and .578". Then the group opened up to an inch or so at 73.3 and also shifted POI. I would call that a "scatter group" where the bullets are exiting the barrel when the shock wave is at the tip of the barrel too. I always find the best group about 1-1/2% higher powder charge. The 73.6 shows the group coming back together at .351" and should finish at about 73.9grs. That should give me a load that shoots within MOA with 73.6, 73.9,74.2grs. and around 3175fps.</p><p>Rifle specs:</p><p>Stiller TAC 300 Rep./ 20MOA rail</p><p>Broughton 5C, 5.75, 9twist, fluted and finished at 28" + brake</p><p>Jewell Trigger</p><p>GreyBull Precision stock bedded with DEVCON</p><p>PTG Orb. style bottom metal</p><p>Chambered in 7LRM 7mm-375 Ruger and Cerakoted by GunWerks</p><p>Seekins Precision 30mm rings</p></blockquote><p></p>
[QUOTE="moombaskier, post: 520431, member: 7841"] OK guy's here are some pics. All groups shot at 200yds. 1rst group shot through rifle was 73.0grs and .578". Then the group opened up to an inch or so at 73.3 and also shifted POI. I would call that a "scatter group" where the bullets are exiting the barrel when the shock wave is at the tip of the barrel too. I always find the best group about 1-1/2% higher powder charge. The 73.6 shows the group coming back together at .351" and should finish at about 73.9grs. That should give me a load that shoots within MOA with 73.6, 73.9,74.2grs. and around 3175fps. Rifle specs: Stiller TAC 300 Rep./ 20MOA rail Broughton 5C, 5.75, 9twist, fluted and finished at 28" + brake Jewell Trigger GreyBull Precision stock bedded with DEVCON PTG Orb. style bottom metal Chambered in 7LRM 7mm-375 Ruger and Cerakoted by GunWerks Seekins Precision 30mm rings [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Wildcats on a .375 Ruger case?
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