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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338/375 Ruger or 375 Ruger with high BC bullets?
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<blockquote data-quote="AZShooter" data-source="post: 850688" data-attributes="member: 5219"><p>IMO no hijack.</p><p></p><p>The 30" 7mm Rem mag would still be that chambering but I was mislead into getting a 1 in 7 twist 3 groove. It shot the 180 Berger hunting VLDs excellently with the accuracy velocity of 2975 or so. Got up to 3050 fps but not as consistent. Unfortunately this barrel configuration go to round count 225 or so and began to occasionally throw the VLDs away from POI.</p><p></p><p>I first discovered the diverging bullets when I went to shoot my coues wt at 400 yds! It wounded the animal instead of the easy hit it should have been. I shot another four with some off by FIVE feet! I grabbed my other rifle my friend was using and finished it off with next shot. </p><p></p><p>I tried 180 Target VLDs and 75 rounds later THEY also had issues with the worn barrel. Finally used 140 accubonds till I was disenchanted by ho hum wind drift numbers and pulled the barrel. </p><p></p><p>I sent that #7 SS lilja to Dan Pederson in Prescott and he rebored/rifled the barrel to 338 dia. I gave him my 338 RCM reamer and had him long throat it for the 300 gr Berger hybrid. I shot it for several years. </p><p></p><p>Just this past spring I FINALLY got around to making a 7mm/375 Ruger on that platform. It is not the LRM version but simply necked down to 7mm. My friend sold me a 7 STW with 400 rounds through it for $200. It was 30" #5 fluted 6 groove lilja 1 in 9 twist. I chopped off the threaded shank and rethreaded for the Mark X action myself. Then chambered it to 7mm/375. It shoots the 180 Berger match target hybrid @ 3200 fps with RL-33. </p><p></p><p>It has a Near Mfg picatinny rail and a Joel Russo stock. Factory trigger set at 1 lb. It IS unusual to use a Mark X for a F class style rifle but it works, feels great and gets some interesting comments. I'd say put your action to use!</p><p></p><p>So that platform has two barrels 338 RCM and 7mm/375 and looks like this:</p><p></p><p><a href="http://s206.photobucket.com/user/RossLeggett/media/Heavy7RemMag003_zps524e5b81.jpg.html" target="_blank"><img src="http://i206.photobucket.com/albums/bb4/RossLeggett/Heavy7RemMag003_zps524e5b81.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p></blockquote><p></p>
[QUOTE="AZShooter, post: 850688, member: 5219"] IMO no hijack. The 30" 7mm Rem mag would still be that chambering but I was mislead into getting a 1 in 7 twist 3 groove. It shot the 180 Berger hunting VLDs excellently with the accuracy velocity of 2975 or so. Got up to 3050 fps but not as consistent. Unfortunately this barrel configuration go to round count 225 or so and began to occasionally throw the VLDs away from POI. I first discovered the diverging bullets when I went to shoot my coues wt at 400 yds! It wounded the animal instead of the easy hit it should have been. I shot another four with some off by FIVE feet! I grabbed my other rifle my friend was using and finished it off with next shot. I tried 180 Target VLDs and 75 rounds later THEY also had issues with the worn barrel. Finally used 140 accubonds till I was disenchanted by ho hum wind drift numbers and pulled the barrel. I sent that #7 SS lilja to Dan Pederson in Prescott and he rebored/rifled the barrel to 338 dia. I gave him my 338 RCM reamer and had him long throat it for the 300 gr Berger hybrid. I shot it for several years. Just this past spring I FINALLY got around to making a 7mm/375 Ruger on that platform. It is not the LRM version but simply necked down to 7mm. My friend sold me a 7 STW with 400 rounds through it for $200. It was 30" #5 fluted 6 groove lilja 1 in 9 twist. I chopped off the threaded shank and rethreaded for the Mark X action myself. Then chambered it to 7mm/375. It shoots the 180 Berger match target hybrid @ 3200 fps with RL-33. It has a Near Mfg picatinny rail and a Joel Russo stock. Factory trigger set at 1 lb. It IS unusual to use a Mark X for a F class style rifle but it works, feels great and gets some interesting comments. I'd say put your action to use! So that platform has two barrels 338 RCM and 7mm/375 and looks like this: [URL=http://s206.photobucket.com/user/RossLeggett/media/Heavy7RemMag003_zps524e5b81.jpg.html][IMG]http://i206.photobucket.com/albums/bb4/RossLeggett/Heavy7RemMag003_zps524e5b81.jpg[/IMG][/URL] [/QUOTE]
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338/375 Ruger or 375 Ruger with high BC bullets?
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