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Long Range Hunting & Shooting
What caliber 7mm Rem Mag or 300 Win Mag
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<blockquote data-quote="NZ Longranger" data-source="post: 501831" data-attributes="member: 14"><p>MR,</p><p> Just a couple of corrections to keep the debate honest. Rather than quote the velocities we personally may or may not get with these cartridges, just pick up a couple of loading manuals and do a comparison. The 7mmRM can push the 180gn Berger, not the 168 Berger, at the same speed the 300WM pushes the 210 Berger. The 180 Berger has a higher BC than the 210 Berger .659 G1 verses .631. And the new Hybrid 180gn is .674. The ballistic edge as far as hitting your long range target is with the 7mmRM. Terminally the 300 has the theoretical edge in this example due to a slightly larger diameter and 30 grains more weight.</p><p> The 300WM certainly cannot push the 180gn 200 – 300 fps faster than the 7mmRM can push the 170gn. Again, check some manuals and you'll see about 100 fps difference between them. Now I cannot comment on the actual BC for the GS 177gn as I haven't shot them personally. But trying to compare apples with apples, with the CE's the BC is a little better in the 7mm 170gn over the 30 cal 180gn. Swings and roundabouts, the 7mm loses on velocity but picks up on BC. No significant difference as far as hitting your target, but the 180 or 177gn in the 300WM has the slight edge terminally due to 10 gns more weight and 24 thou larger diameter.</p><p> And now on with the debate!<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><p> Greg</p></blockquote><p></p>
[QUOTE="NZ Longranger, post: 501831, member: 14"] MR, Just a couple of corrections to keep the debate honest. Rather than quote the velocities we personally may or may not get with these cartridges, just pick up a couple of loading manuals and do a comparison. The 7mmRM can push the 180gn Berger, not the 168 Berger, at the same speed the 300WM pushes the 210 Berger. The 180 Berger has a higher BC than the 210 Berger .659 G1 verses .631. And the new Hybrid 180gn is .674. The ballistic edge as far as hitting your long range target is with the 7mmRM. Terminally the 300 has the theoretical edge in this example due to a slightly larger diameter and 30 grains more weight. The 300WM certainly cannot push the 180gn 200 – 300 fps faster than the 7mmRM can push the 170gn. Again, check some manuals and you’ll see about 100 fps difference between them. Now I cannot comment on the actual BC for the GS 177gn as I haven’t shot them personally. But trying to compare apples with apples, with the CE’s the BC is a little better in the 7mm 170gn over the 30 cal 180gn. Swings and roundabouts, the 7mm loses on velocity but picks up on BC. No significant difference as far as hitting your target, but the 180 or 177gn in the 300WM has the slight edge terminally due to 10 gns more weight and 24 thou larger diameter. And now on with the debate!:D Greg [/QUOTE]
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What caliber 7mm Rem Mag or 300 Win Mag
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