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HELP!! Ruger 77, 7mm Remington Mag
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<blockquote data-quote="deadeye2" data-source="post: 6965" data-attributes="member: 1222"><p>O. K. guys, first let me say that I do not claim to be a gunsmith, but I have always been able to get all the rifles that I shoot or have worked on to shoot a three shot group at 100 yds that was one inch or under. A friend brought his Ruger 77, 7 mm Remington Mag to me last fall. He wanted me to work up load for it and tune it as needed. I messed with that Ruger off and on for a LONG month. I could not get it to stop throwing the second or third shot! I was to the point that I wanted to break it over the shooting bench!!! Below you can find listed the things that I have tried. Oh yea, he wants me to try again this fall, I had hoped he would trade it off! I am out of ideas !</p><p></p><p>1.) Bedding tried: Bedded action floated barrel, then full bedded it. I could see little or no improvement between these two methods. I then tried a little pressure between the forearm and the barrel. When I did this the groups did go wild ! </p><p></p><p>2.) Trigger: Crisp 32 oz.</p><p></p><p>3.) Scope and mounts: The bases are tight and loctite was used. The scope is a Redfield 3x9. I wondered if it was the problem so I sent it to OBS and it checked out O.K. I also have tried this rifle using my Leupold VXIII, 4 1/2X14, the problem was still there using the Leupold. The scope is level to the rifle for sure.</p><p></p><p>Ammo, I used hand loads only.</p><p></p><p>1.) Powders tried: H4350, IMR4350, H4831, IMR4831, R22 and R19.</p><p></p><p>2.) Primers tried: Winchester WLR, Remington 9 ½, Federal 215, Federal 215 match, and CCI 250.</p><p></p><p>3.) Brass tried: All brass was full length sized and trimmed to 4.490" before loading. Remington, Hornady, Federal, and Winchester.</p><p></p><p>4.) Bullets tried: He wanted to shoot 160 gr bullets, so I have not tried any lighter weights. Both Nosler Ballistic tip, and Partition 160 gr. Hornady Interlock and SST 160 gr. Barnes X 160 gr. </p><p></p><p>5.) C.O.L.: I first seated the bullets .10/1000 off the lands. I tried moving the depth of seating up and back.</p><p></p><p>I need advice. I must be missing something!!!</p><p><a href="http://www.deadeye2.com" target="_blank">web page</a></p><p></p><p>[ 09-07-2003: Message edited by: deadeye2 ]</p></blockquote><p></p>
[QUOTE="deadeye2, post: 6965, member: 1222"] O. K. guys, first let me say that I do not claim to be a gunsmith, but I have always been able to get all the rifles that I shoot or have worked on to shoot a three shot group at 100 yds that was one inch or under. A friend brought his Ruger 77, 7 mm Remington Mag to me last fall. He wanted me to work up load for it and tune it as needed. I messed with that Ruger off and on for a LONG month. I could not get it to stop throwing the second or third shot! I was to the point that I wanted to break it over the shooting bench!!! Below you can find listed the things that I have tried. Oh yea, he wants me to try again this fall, I had hoped he would trade it off! I am out of ideas ! 1.) Bedding tried: Bedded action floated barrel, then full bedded it. I could see little or no improvement between these two methods. I then tried a little pressure between the forearm and the barrel. When I did this the groups did go wild ! 2.) Trigger: Crisp 32 oz. 3.) Scope and mounts: The bases are tight and loctite was used. The scope is a Redfield 3x9. I wondered if it was the problem so I sent it to OBS and it checked out O.K. I also have tried this rifle using my Leupold VXIII, 4 1/2X14, the problem was still there using the Leupold. The scope is level to the rifle for sure. Ammo, I used hand loads only. 1.) Powders tried: H4350, IMR4350, H4831, IMR4831, R22 and R19. 2.) Primers tried: Winchester WLR, Remington 9 ½, Federal 215, Federal 215 match, and CCI 250. 3.) Brass tried: All brass was full length sized and trimmed to 4.490” before loading. Remington, Hornady, Federal, and Winchester. 4.) Bullets tried: He wanted to shoot 160 gr bullets, so I have not tried any lighter weights. Both Nosler Ballistic tip, and Partition 160 gr. Hornady Interlock and SST 160 gr. Barnes X 160 gr. 5.) C.O.L.: I first seated the bullets .10/1000 off the lands. I tried moving the depth of seating up and back. I need advice. I must be missing something!!! [url="http://www.deadeye2.com"]web page[/url] [ 09-07-2003: Message edited by: deadeye2 ] [/QUOTE]
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HELP!! Ruger 77, 7mm Remington Mag
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