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257 Load with IMR 7828

257 Load with IMR 7828
« on: March 16, 2018, 01:37:28 PM »
Need help with working up a load for a 100 Grain Barnes TSX with IMR7828. All the data I can locate only shows a max charge (73 grains) recommendation with no minimum. Iím sure someone here knows why and can point me in the right direction. Thanks!

Re: 257 Load with IMR 7828
« Reply #1 on: March 16, 2018, 09:08:40 PM »
just drop down 5-10% from the max load and use that for your starting load. Personally, I would drop 5% to start.  8)

Rob
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Re: 257 Load with IMR 7828
« Reply #2 on: March 16, 2018, 09:20:25 PM »
I agree with Catskinner.Drop down 5-10 % and work up.If It doesn't work well for you I have found that H1000 and 100 tsx are a great combo in the 257.
« Last Edit: March 17, 2018, 02:48:36 AM by terminator »
Roger
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Re: 257 Load with IMR 7828
« Reply #3 on: March 18, 2018, 04:37:03 AM »
By increasing the load by .3 grains at a time vs .5 you will be closer to hitting the optimal charge for that bullet sooner. The TSXs in my 257 Wby are not picky about the powder (such as H-1000, RL-22 or H-4350) but I seat bullets to the maximum length the full magazine allows and still feed into the chamber.
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Re: 257 Load with IMR 7828
« Reply #4 on: March 20, 2018, 07:57:12 PM »
Thanks gentlemen. I'm also testing a load with H1000 as well.