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Joined: Jan 2001
Posts: 59,153
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2001
Posts: 59,153 |
What would be your opinion of this bullet from the 7.5 inch barrel of the 454 on Whitetail with max load of Lil'Gun? I've loaded a bunch but never shot a deer with them. One thing I can tell you though - do not substitute the standard 300 XTP for the XTP Mag! I made that mistake, had some decent mi-range loads worked up with the 300 XTP Mag bullet in my 454, and loaded some regular XTP bullets without realizing they were different - result was really high pressure, no Kaboom but there were definite pressure signs. Thanks for this post.. I have a box of each and, like you, didn't notice the difference.. But why did the 'regular' ones give you higher pressure? They're both .452" Diam..
Last edited by Redneck; 12/05/16.
Ex- USN (SS) '66-'69
Pro-Constitution.
LET'S GO BRANDON!!!
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Joined: Oct 2014
Posts: 4,755
Campfire Tracker
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Campfire Tracker
Joined: Oct 2014
Posts: 4,755 |
What would be your opinion of this bullet from the 7.5 inch barrel of the 454 on Whitetail with max load of Lil'Gun? I've loaded a bunch but never shot a deer with them. One thing I can tell you though - do not substitute the standard 300 XTP for the XTP Mag! I made that mistake, had some decent mi-range loads worked up with the 300 XTP Mag bullet in my 454, and loaded some regular XTP bullets without realizing they were different - result was really high pressure, no Kaboom but there were definite pressure signs. Thanks for this post.. I have a box of each and, like you, didn't notice the difference.. But why did the 'regular' ones give you higher pressure? They're both .452" Diam.. The Mag version is a bit harder, either with a thicker jacket or harder core, not sure which (or both?). I guess at high enough pressure, the softer regular XTP swells out into the rifling more, causing higher bore friction. I don't have any proof of "how", that's my guess, just proof of the end result. IIRC, back when I was using them ~15 years ago Hornady had a warning not to interchange them, not sure if that's still in their newest manuals?
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Joined: Jan 2001
Posts: 59,153
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2001
Posts: 59,153 |
The Mag version is a bit harder, either with a thicker jacket or harder core, not sure which (or both?). I guess at high enough pressure, the softer regular XTP swells out into the rifling more, causing higher bore friction. I don't have any proof of "how", that's my guess, just proof of the end result. Not a bad 'guess', IYAM. IIRC, back when I was using them ~15 years ago Hornady had a warning not to interchange them, not sure if that's still in their newest manuals? I'm thinking I need to update my Hornady manual - it doesn't even mention the magnum 300 gr. bullet.. 
Ex- USN (SS) '66-'69
Pro-Constitution.
LET'S GO BRANDON!!!
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