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Rifles, Reloading, Optics, Equipment
Reloading
300 RUM Issues...
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<blockquote data-quote="Lrt307" data-source="post: 810164" data-attributes="member: 57068"><p>Hey Dave whats up? Its Randy here from Worland. Anyways I do a bit of long range shooting / hunting also. I shoot a 300 rum and 7mag. I have been reading the thread on how possible velocities are off from Chrono readings. I have a bit of news that all of you probably are familiar with but thought I would drop a line anyway. When shooting @ long range and your clicks do not correlate to what drop charts portray them to be the actual B.C. of the bullet varies. I know a couple of summers ago I was shooting 7mm bergers and different lot #'s of ammo would have different B.C. from what is advertised on boxes. The 7mm Berger 168's were shooting around .580-.590 B.C. versus what was advertised on the box .617. With a different lot # they would shoot a tad over .600. Very seldom have I seen Bergers shoot their actual B.C. The Berger 180's seem to be close in the 7mm and come in around .650 and advertised is .659. Jlk bullets have a bit higher B.C. with the same j4 jacket.</p><p></p><p>I have been shooting the .300 rum for some time on factory barrel and used to shoot 185 bergers with 98.7 grains of retumbo @ 3475 fps. This was also shooting around a .750 group @ 100 yds. I since have made the gun into a Semi Custom and is now getting a Brux Barrel, Wyatt box, HS Stock, Muzzle Break, Cerakote, Timney Trigger, Blue Printed, Flute cut bolt, and Huskemaw scope. My buddy has the same gun that was built so we will both be running 185's trying to get them dialed in as above.... Sorry for the slight derail of the thread but overall I think all of our goals are to share information and help everyone to shoot & reload as good as we can! Have a great day everyone!<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="Lrt307, post: 810164, member: 57068"] Hey Dave whats up? Its Randy here from Worland. Anyways I do a bit of long range shooting / hunting also. I shoot a 300 rum and 7mag. I have been reading the thread on how possible velocities are off from Chrono readings. I have a bit of news that all of you probably are familiar with but thought I would drop a line anyway. When shooting @ long range and your clicks do not correlate to what drop charts portray them to be the actual B.C. of the bullet varies. I know a couple of summers ago I was shooting 7mm bergers and different lot #'s of ammo would have different B.C. from what is advertised on boxes. The 7mm Berger 168's were shooting around .580-.590 B.C. versus what was advertised on the box .617. With a different lot # they would shoot a tad over .600. Very seldom have I seen Bergers shoot their actual B.C. The Berger 180's seem to be close in the 7mm and come in around .650 and advertised is .659. Jlk bullets have a bit higher B.C. with the same j4 jacket. I have been shooting the .300 rum for some time on factory barrel and used to shoot 185 bergers with 98.7 grains of retumbo @ 3475 fps. This was also shooting around a .750 group @ 100 yds. I since have made the gun into a Semi Custom and is now getting a Brux Barrel, Wyatt box, HS Stock, Muzzle Break, Cerakote, Timney Trigger, Blue Printed, Flute cut bolt, and Huskemaw scope. My buddy has the same gun that was built so we will both be running 185's trying to get them dialed in as above.... Sorry for the slight derail of the thread but overall I think all of our goals are to share information and help everyone to shoot & reload as good as we can! Have a great day everyone!:D [/QUOTE]
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300 RUM Issues...
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