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Joined: Nov 2009
Posts: 6,897 Likes: 9
Campfire Tracker
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Campfire Tracker
Joined: Nov 2009
Posts: 6,897 Likes: 9 |
When your using 103gr 105gr 107-08 gr. H-4350 is good but if you have a 1 x 8 twist Retumbo will amaze you. Rio7
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Joined: Mar 2005
Posts: 26,332 Likes: 11
Campfire Ranger
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Campfire Ranger
Joined: Mar 2005
Posts: 26,332 Likes: 11 |
My 243AI/243's are M700's with the factory 9 1/8 twist 22" bbl. The two I have tried 103g ELDX's in stabilized the bullets fine. This is at about 6000 ft and 2990 fps for the 243, 3030 for the 243AI. Both with RL-26. XXL has pressure data for the 243, RL-26 with a 23.6" bbl at 3143 fps. I could probably go faster (and will probably try some stiffer charges) but I doubt I could achieve XXL's published velocity even accounting for my shorter bbls. My ES is 35-40 fps so I'm pretty sure I'm getting a good burn.
For the 100g Partitions either H4831 or RL-26. For 90 and 95g bullets H4831.
243s with the heavies are one of the big beneficiaries of RL-26. I know, I know, RL-26 is currently a unicorn, and I'm being careful about burning through mine. But I have a ton of H4831, so I probably wont even try RL-26 in my other 243s.
Casey
Not being married to any particular political party sure makes it a lot easier to look at the world more objectively...
Having said that, MAGA.
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Joined: Nov 2006
Posts: 1,352
Campfire Regular
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Campfire Regular
Joined: Nov 2006
Posts: 1,352 |
IMR 4831. Only use 90 or 95 grain bullets though.
GreggH
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Joined: Nov 2015
Posts: 19,277 Likes: 3
Campfire Ranger
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Campfire Ranger
Joined: Nov 2015
Posts: 19,277 Likes: 3 |
For bullets from 58 to 85 grains I have yet to find a powder that comes to close to W760....and that's in a bunch of different 243's. For heavier bullets, I use IMR4350.
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Joined: Nov 2022
Posts: 518 Likes: 4
Campfire Regular
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Campfire Regular
Joined: Nov 2022
Posts: 518 Likes: 4 |
For a 22-24" barrel I like H4350.
In my 26" barreled 6mmSLR (modified .243 with shoulder pushed back) I use H4831 with 105 Hybrids.
“Might does not make right but it sure makes what is.”
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Joined: Jan 2020
Posts: 5,214 Likes: 5
Campfire Tracker
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Campfire Tracker
Joined: Jan 2020
Posts: 5,214 Likes: 5 |
Is there a bad powder to use in a .243? I've pretty much settled in on using Hunter powder for the heavier bullets. StaBall, Super Performance, Power Pro will yield excellent velocity but you might to have to work to find the load your rifles like. And when using 4350, Varget or 4831 it won't take long for you to find a load that'll work.
Life is good live it while you can.
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Joined: Dec 2015
Posts: 8,346 Likes: 2
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2015
Posts: 8,346 Likes: 2 |
another vote for H414 or RL. 17
LIFE NRA , we vote Red up here, Norseman
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Joined: Aug 2021
Posts: 212 Likes: 1
Campfire Member
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Campfire Member
Joined: Aug 2021
Posts: 212 Likes: 1 |
Purchased a special run Talo Ruger No.1 Varminter with a 1:7.7 barrel twist. Currently loading either the Berger 108 grain Elite Hunter or Boat Tail Target. Shoots fine with H4350 but better with N165.
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Joined: Apr 2003
Posts: 6,857 Likes: 3
Campfire Tracker
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Campfire Tracker
Joined: Apr 2003
Posts: 6,857 Likes: 3 |
My 243 is apre64 bought by dad for Mom in ‘57. It was very picky until I tried 4320 with 100gr Nosler Solid Bases on about 1990. It shoots clover leafs with this load and has dropped numerous white tails since then. I’ve stocked up on both 100gr SBs and 4320!
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