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Joined: Sep 2006
Posts: 218
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OP
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Joined: Sep 2006
Posts: 218 |
Using IMR-4895 and Mule Deers' advice I formulated some reduced loads for my .280 Rem. An old Sierra manual showed a load of 46.9 of I-4895 with a 140gr at 2800fps. Using the Hodgon formula I multiplied 46.9 by .60 (60%) to arrive at my reduced load of roughly 28grs. This load is easy to shoot, and didn't require a ton of holdover at 200 yards. I havn't clocked it yet, but I wouldn't be surprised if it would work on deer out to the 200 yard mark. This will be just a practice load for me, but would be a great starting point for a new shooter. Good luck with your loads!
"Waidmannsheil"
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Joined: Apr 2004
Posts: 42,878 Likes: 8
Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2004
Posts: 42,878 Likes: 8 |
Welcome to the club....
too bad not many guys discovered that they don't need a 500 yd load to take a deer at 100 to 200 yds...
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Joined: Jun 2004
Posts: 44,882 Likes: 10
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2004
Posts: 44,882 Likes: 10 |
I'd clock that load before I launched it at a game animal.
I just ran a linear regression through a bunch of IMR4895 data for a 140 in the 280. Extrapolating down to 28 grains shows a predicted speed of approximately 1870 fps. So you're starting the bullets out near a typical minimum recommended impact speed.
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Joined: Aug 2003
Posts: 17,491
Campfire Ranger
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Campfire Ranger
Joined: Aug 2003
Posts: 17,491 |
I'd clock that load before I launched it at a game animal.
I just ran a linear regression through a bunch of IMR4895 data for a 140 in the 280. Extrapolating down to 28 grains shows a predicted speed of approximately 1870 fps. So you're starting the bullets out near a typical minimum recommended impact speed. So an Interlock is sometimes known as a "poor man's Partition" at normal velocity; why not allow a reduced velocity Sierra to be called the "poor man's TSX" ?
Sometimes, the air you 'let in'matters less than the air you 'let out'.
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Joined: Apr 2004
Posts: 42,878 Likes: 8
Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2004
Posts: 42,878 Likes: 8 |
I'd clock that load before I launched it at a game animal.
I just ran a linear regression through a bunch of IMR4895 data for a 140 in the 280. Extrapolating down to 28 grains shows a predicted speed of approximately 1870 fps. So you're starting the bullets out near a typical minimum recommended impact speed. Well then, put out some media to test it in, and see how it does...a ballistic tip will open up reliably down to 1300 fps or less...
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Joined: Sep 2006
Posts: 218
Campfire Member
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OP
Campfire Member
Joined: Sep 2006
Posts: 218 |
Thanks to all. Mathman-linear regression, geeze! I will clock this load and post it out of curiosity. I don't plan to hunt with it, but it makes for a great practice load. Now if I can figure out a reduced load for my .338 Win.
"Waidmannsheil"
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Joined: Aug 2006
Posts: 983
Campfire Regular
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Campfire Regular
Joined: Aug 2006
Posts: 983 |
Big bear, Look in a Speer manual it has them for 200, 250 and 275's w/ 4759
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Joined: Nov 2011
Posts: 31,075 Likes: 4
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2011
Posts: 31,075 Likes: 4 |
Thanks to all. Mathman-linear regression, geeze! I will clock this load and post it out of curiosity. I don't plan to hunt with it, but it makes for a great practice load. Now if I can figure out a reduced load for my .338 Win. Open a new thread, and tell us what you are looking for. I have several that work well in a variety of rifles.
You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.
You cannot over estimate the unimportance of nearly everything. John Maxwell
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Joined: Mar 2014
Posts: 1,668
Campfire Regular
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Campfire Regular
Joined: Mar 2014
Posts: 1,668 |
I've used H4895, IMR 3031, Varget and even TAC for reduced recoil and velocity loads. They all work if one finds the sweet spot for accuracy. But, if you really want reduced recoil, try the faster rifle powders like 4227 or 4198. My old Dupont Guide says I can get 2100 fps. with 27.5 grs. of IMR 4227 or 2375 fps. with 34.5 grs. of IMR 4198 with a 150 gr. bullet in the .280. Or 2375 fps. (4227, 28.5 grs.) or 2680 fps. (36 grs. 4198) with a 125 gr. bullet. E
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