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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Ballistics Problem
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<blockquote data-quote="Broz" data-source="post: 669998" data-attributes="member: 7503"><p>Riley, I wish I had a solid answr for you on that, but it could be like this. I use to line 3 Shooting Chrony's on a 2x6 and shoot through 2 or 3 of them. They were all different on the same bullet. One was 40 to 60 fps faster no matter where you placed it (first or last) one was pretty consistant but slower and one would bounce around either side of the other two...<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite11" alt=":rolleyes:" title="Roll Eyes :rolleyes:" loading="lazy" data-shortname=":rolleyes:" /><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" />.. But hey here is what I can tell you for sure. If you use the suggested BC from the bullet mfg. And do actual field drops to 1000 yards. Then using those drops change the muzzle velocity to match the actual dial ups needed to center the groups you shot at a given distance. You will be pretty darn good to 1000 or 1200 yards. </p><p>After that you may have to go in and play with BC's.</p><p> </p><p>It is like this. It's all math, and just numbers. I don't care if it says my muzzle velocity is - 250 fps as long as I hit center target. (the -250 is a joke to make my point) This is why you hear me always talking about "Actual Field Tests Rule!!" A guy (and I see this all the time) sets at home on his PC and runs all these bogus numbers and convinces himself that velocity is king. Albeit velocity is important, but if you don't really have it, all those wanna be velocity, drift and drop numbers are just a batch of over sweetened "coolaid". Just shoot your rifle all you can my friend and then make that ballistic program match the rifle. You will then make plenty of your share of one shot kills.</p><p> </p><p>Jeff</p></blockquote><p></p>
[QUOTE="Broz, post: 669998, member: 7503"] Riley, I wish I had a solid answr for you on that, but it could be like this. I use to line 3 Shooting Chrony's on a 2x6 and shoot through 2 or 3 of them. They were all different on the same bullet. One was 40 to 60 fps faster no matter where you placed it (first or last) one was pretty consistant but slower and one would bounce around either side of the other two...:rolleyes::D.. But hey here is what I can tell you for sure. If you use the suggested BC from the bullet mfg. And do actual field drops to 1000 yards. Then using those drops change the muzzle velocity to match the actual dial ups needed to center the groups you shot at a given distance. You will be pretty darn good to 1000 or 1200 yards. After that you may have to go in and play with BC's. It is like this. It's all math, and just numbers. I don't care if it says my muzzle velocity is - 250 fps as long as I hit center target. (the -250 is a joke to make my point) This is why you hear me always talking about "Actual Field Tests Rule!!" A guy (and I see this all the time) sets at home on his PC and runs all these bogus numbers and convinces himself that velocity is king. Albeit velocity is important, but if you don't really have it, all those wanna be velocity, drift and drop numbers are just a batch of over sweetened "coolaid". Just shoot your rifle all you can my friend and then make that ballistic program match the rifle. You will then make plenty of your share of one shot kills. Jeff [/QUOTE]
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Ballistics Problem
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