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With all due respect this thread was about What works for antelope out to 600 yds, weighs less than 8.5 lbs and cost less than $1200
Honestly is 600 yds even considered long-range. I've shot game at over 400 yds and the only requirement needed to accomplish the task was a lot of shooting at 500 with a fixed 6 Leopold with dotz. I'm assuming the added 100 yds isn't going to be much different.
As far as Kinetic Energy is concerned a 357 pistol has an average of around 600 ft lbs and is considered to be a reputable deer cartridge. Don't see why a rifle would be any different given a bullet of proper construction.
Trystan If you already shoot game at 400 why the hell did you start this thread?
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That load has worked well for me using the IMR variety in a Rem 700 with the factory twist for both AMAXs and HPBTs
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Campfire 'Bwana
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Campfire 'Bwana
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Would anyone care to offer up a good, accurate load using a Hornady 105 hpbt in 243?
Powder, charge, cases, primer? I've been using Lapua brass, Fed 210s, and a top-end charge of H-1000 with 105s.
A wise man is frequently humbled.
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What is a good twist rate for the Hornady 105 HPBT?
"Never miss the opportunity to shut the f$%K up." Colonel Hopewell.
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10" or faster. Preferably faster.
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What is a good twist rate for the Hornady 105 HPBT? Most competitors shooting the 6mm 105gr class of bullets are going with an 8" twist. The .243 might get away with 9" but depending on the barrel could be on the edge. 8" works, no-brainer.
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Joined: Feb 2014
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Campfire Regular
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What is a good twist rate for the Hornady 105 HPBT? Most competitors shooting the 6mm 105gr class of bullets are going with an 8" twist. The .243 might get away with 9" but depending on the barrel could be on the edge. 8" works, no-brainer. Ok. I'm noticing most factory rifles have a 10 twist.
"Never miss the opportunity to shut the f$%K up." Colonel Hopewell.
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Joined: Jun 2004
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Campfire 'Bwana
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Campfire 'Bwana
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What is a good twist rate for the Hornady 105 HPBT? Most competitors shooting the 6mm 105gr class of bullets are going with an 8" twist. The .243 might get away with 9" but depending on the barrel could be on the edge. 8" works, no-brainer. Ok. I'm noticing most factory rifles have a 10 twist. Ignore the factory stuff.
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Campfire Tracker
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Campfire Tracker
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What is a good twist rate for the Hornady 105 HPBT? Most competitors shooting the 6mm 105gr class of bullets are going with an 8" twist. The .243 might get away with 9" but depending on the barrel could be on the edge. 8" works, no-brainer. I had the 105 HPBT shoot like a champ here at 5000'... then shoot horribly at 500' out of a 1-10" twist Tikka .243.... 1-9.125" Factory Remingtons have always shot them well IME.
You better pray to the God of Skinny Punks that this wind doesn't pick up......
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Joined: Mar 2006
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Campfire Outfitter
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Campfire Outfitter
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What is a good twist rate for the Hornady 105 HPBT? Most competitors shooting the 6mm 105gr class of bullets are going with an 8" twist. The .243 might get away with 9" but depending on the barrel could be on the edge. 8" works, no-brainer. I had the 105 HPBT shoot like a champ here at 5000'... then shoot horribly at 500' out of a 1-10" twist Tikka .243.... 1-9.125" Factory Remingtons have always shot them well IME. Keyholing, or just poor groups? Marginally stable bullets can still shoot very well, they just have a bit more drag. Nice round holes in the paper suggest that stability isn't the issue. Could be some other factor introduced by the change in locale/shooting conditions. While the 105 AM is marginal and a bit of a gamble in a 10" twist, the HPBT is a bit shorter and has been stellar in every 10" twist barrel I've shot them out of. This doesn't include any sea level shooting, but does include 2000-5000' ASL in dense, cold air down to about -30F.
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Joined: Feb 2014
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I'm asking about the twist as I'd like to run a Tikka.
"Never miss the opportunity to shut the f$%K up." Colonel Hopewell.
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Joined: Mar 2006
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I'm asking about the twist as I'd like to run a Tikka. I've shot them out of Tikka's and Sako's without issue.
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Joined: Feb 2001
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Campfire Tracker
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Campfire Tracker
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What is a good twist rate for the Hornady 105 HPBT? Most competitors shooting the 6mm 105gr class of bullets are going with an 8" twist. The .243 might get away with 9" but depending on the barrel could be on the edge. 8" works, no-brainer. I had the 105 HPBT shoot like a champ here at 5000'... then shoot horribly at 500' out of a 1-10" twist Tikka .243.... 1-9.125" Factory Remingtons have always shot them well IME. Keyholing, or just poor groups? Marginally stable bullets can still shoot very well, they just have a bit more drag. Nice round holes in the paper suggest that stability isn't the issue. Could be some other factor introduced by the change in locale/shooting conditions. While the 105 AM is marginal and a bit of a gamble in a 10" twist, the HPBT is a bit shorter and has been stellar in every 10" twist barrel I've shot them out of. This doesn't include any sea level shooting, but does include 2000-5000' ASL in dense, cold air down to about -30F. It went from sub-MOA at 600 in CO.... to keyholes at 100 in CA. It happened with not one.... but three Tikka .243s. Developed a good load for them in Colorado... and all three went tits-up when they got home to Cali.
You better pray to the God of Skinny Punks that this wind doesn't pick up......
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Keyholes, got it. Thanks for the explanation.
As I mentioned above, 10" twist at a minimum, and depending on air density it can be a gamble. Faster is better.
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Appreciate the info, guys!
Exquisitely turdlike in all of his many manifestations!!
Resist much - obey little. Hayduke lives!
"30-06 guys don't worry about schit 'cause 30-06 guys don't worry....." 16bore
~Molɔ̀ːn Labé Skýla~
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