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Rifles, Reloading, Optics, Equipment
Reloading
load data for 7mm LRM
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<blockquote data-quote="AZShooter" data-source="post: 919385" data-attributes="member: 5219"><p>While my chambering is not a true 7 LRM the 7/375 has finally shown what it likes. I have chambered a total of three different rifles all with 7 Rem mag takeoffs learning this chambering's likes and dislikes. </p><p></p><p>I had established a OAL with the first rifle I tried, a Mark X, and didn't bother to change it for the Rem action. I had mentioned that the jump to the rifling was .156". I was looking into buying a Wyatt's mag box so I could get the 180 closer to the rifling. When reading the specs I realized that I wasn't using the full space in the the Remington! I was able to adjust the OAL significantly!!! I was actually able to have the bullet engage the lands. </p><p></p><p></p><p>Yesterday I shot several groups with starting with the bullet touching the lands and other loads with the bullet seated deeper in .005" increments. The bullet performed its best .015" from lands. I still need to test a few more times. Here is the load: </p><p></p><p>180 Berger match target hybrid .015 off lands, fed 215 match, 88 gr of US 869, vel 3090 fps</p><p></p><p>When I consider Alliant's and Hodgdon's load data for the 7 RUM shooting a 175 gr bullet with top velocities of 3059 fps (alliant) or 3075 fps (Hodgdon) I feel pretty good with the velocities obtained with the 7/375. </p><p></p><p>I will be interested in any loads that 7 LRM owners end up using with their rifles. </p><p></p><p>Ross</p><p> Hope this information will help any 7 LRM owners.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 919385, member: 5219"] While my chambering is not a true 7 LRM the 7/375 has finally shown what it likes. I have chambered a total of three different rifles all with 7 Rem mag takeoffs learning this chambering's likes and dislikes. I had established a OAL with the first rifle I tried, a Mark X, and didn't bother to change it for the Rem action. I had mentioned that the jump to the rifling was .156". I was looking into buying a Wyatt's mag box so I could get the 180 closer to the rifling. When reading the specs I realized that I wasn't using the full space in the the Remington! I was able to adjust the OAL significantly!!! I was actually able to have the bullet engage the lands. Yesterday I shot several groups with starting with the bullet touching the lands and other loads with the bullet seated deeper in .005" increments. The bullet performed its best .015" from lands. I still need to test a few more times. Here is the load: 180 Berger match target hybrid .015 off lands, fed 215 match, 88 gr of US 869, vel 3090 fps When I consider Alliant's and Hodgdon's load data for the 7 RUM shooting a 175 gr bullet with top velocities of 3059 fps (alliant) or 3075 fps (Hodgdon) I feel pretty good with the velocities obtained with the 7/375. I will be interested in any loads that 7 LRM owners end up using with their rifles. Ross Hope this information will help any 7 LRM owners. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
load data for 7mm LRM
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