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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Terminal Velocity Effects
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<blockquote data-quote="Brent" data-source="post: 30503" data-attributes="member: 99"><p>Reed,</p><p>I was reading an post of mine that Len brought up, (Ric has a great read there) one were I killed this bull at 50ft with the XLC, and I noticed the speed on that load back then was 2550 fps, not 2700. (Ric has another good read about a Grizzly too, maybe Len'll dig that up too <img src="http://images/icons/wink.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>2700 is a max load and it was reduced for best accuracy but runs about 2600 on average. I run the 400gr Swift handload at 2700 with about 112gr RL22, takes about 118gr with the XLC though. Factory Swift loads were 2650, but $$$$$$!!! <img src="http://images/icons/rolleyes.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p></p><p>If you ever use that 400gr XLC, don't get no grand illusion about it having a .545 BC like Barnes says, it's about .390-.410 at best!! I've checked it on the Oehler 43 using the acustic target three different times and it's always the same... <img src="http://images/icons/frown.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p></p><p>It's a thumper round, but I wish the bullets DID HAVE a .546 BC. A very generous friend of mine sent me some GS Custom 330gr HV bullets from South Africa. They say they have a BC of .550 or something high like that. I hope so, I could push this bullet to..... REAL FAST! <img src="http://images/icons/grin.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> The multiple driving bands on the GS are suppose to increase MV also. They're raised, not just grooves cut into the bullet, so they should work good to reduce friction a hell of a lot.</p></blockquote><p></p>
[QUOTE="Brent, post: 30503, member: 99"] Reed, I was reading an post of mine that Len brought up, (Ric has a great read there) one were I killed this bull at 50ft with the XLC, and I noticed the speed on that load back then was 2550 fps, not 2700. (Ric has another good read about a Grizzly too, maybe Len'll dig that up too [img]images/icons/wink.gif[/img] 2700 is a max load and it was reduced for best accuracy but runs about 2600 on average. I run the 400gr Swift handload at 2700 with about 112gr RL22, takes about 118gr with the XLC though. Factory Swift loads were 2650, but $$$$$$!!! [img]images/icons/rolleyes.gif[/img] If you ever use that 400gr XLC, don't get no grand illusion about it having a .545 BC like Barnes says, it's about .390-.410 at best!! I've checked it on the Oehler 43 using the acustic target three different times and it's always the same... [img]images/icons/frown.gif[/img] It's a thumper round, but I wish the bullets DID HAVE a .546 BC. A very generous friend of mine sent me some GS Custom 330gr HV bullets from South Africa. They say they have a BC of .550 or something high like that. I hope so, I could push this bullet to..... REAL FAST! [img]images/icons/grin.gif[/img] The multiple driving bands on the GS are suppose to increase MV also. They're raised, not just grooves cut into the bullet, so they should work good to reduce friction a hell of a lot. [/QUOTE]
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