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Joined: Feb 2010
Posts: 17,816
Campfire Ranger
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OP
Campfire Ranger
Joined: Feb 2010
Posts: 17,816 |
Anyone using IMR 4350 and Sierra 117gr. Game King bullets in .257 Roberts ? Can you suggest a load for this combination ? Thanks.
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Joined: Jul 2001
Posts: 60,125
Campfire Kahuna
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Campfire Kahuna
Joined: Jul 2001
Posts: 60,125 |
I generally use around 45-46 grains of IMR4350 with 115-120 grain bullets, which tends to group well in most .257s.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck
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Joined: Oct 2017
Posts: 994
Campfire Regular
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Campfire Regular
Joined: Oct 2017
Posts: 994 |
My son has a 257 Roberts built on a 98 action.
It was rather picky about what it would shoot.
I tried several bullets from 100 to 120 grains but I got it to consistently group under MOA with IMR-4350 and the Sierra 117 gr. Gameking you speak of.
I don’t remember the exact charge off the top of my head but when I get home I’ll look at my load book and see what it is.
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Joined: Nov 2003
Posts: 1,930
Campfire Regular
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Campfire Regular
Joined: Nov 2003
Posts: 1,930 |
I've had good luck with H4350 also, with Hornady and Nosler 115 to 120 grain bullets, but the velocity was a fuzz better with the IMR version.
Bring enough gun and know how to use it.
Know that it is not the knowing, nor the talking, nor the reading man, but the doing man, that at last will be found the happiest man. - Thomas Brooks (1608-1680)
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Joined: Oct 2017
Posts: 994
Campfire Regular
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Campfire Regular
Joined: Oct 2017
Posts: 994 |
Wizard,
I loaded those 117’s for my son’s 257 with 35.2 grains of IMR-4350.
Probably a little anemic but it’s accurate in his rifle.
That came out of Sierra’s 5th edition manual.
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Joined: Jan 2023
Posts: 75
Campfire Greenhorn
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Campfire Greenhorn
Joined: Jan 2023
Posts: 75 |
Lilja barrel on a Mexican Mauser here. 42g and the 117. Any higher and my brass shows pressure signs.
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Joined: Jul 2001
Posts: 60,125
Campfire Kahuna
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Campfire Kahuna
Joined: Jul 2001
Posts: 60,125 |
What's the velocity? And what are the pressure signs?
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck
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Joined: Feb 2021
Posts: 298
Campfire Member
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Campfire Member
Joined: Feb 2021
Posts: 298 |
I have some 117gr. Sierras---both Game Kings and Pro Hunters that I am going to list in the Classifieds soon!
Hip
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