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I bought a slightly used stainless Remington 700 bdl in 7mm SAUM last winter, I've got a habit of liking odd or less popular cartridges. I load my .260 Rem with 120gr TTSX for deer and my .35 Whelen with 225gr TSX for moose so I figure my 7 SAUM will be my "in between, do it all" rifle. My plan is to load it with 150gr TTSX. I have a bunch of 154gr Hornady IL on hand so I used those to give me an idea of which powder to use with the 150gr TTSX. So here are my results using RL19, RL22, H414, H4350 and H4831sc. I think RL22 is going to be the winner. RL19 60gr.......2964fps 60.5gr....2994fps 61gr.......3046fps 61.5gr....3052fps 62gr.......3073fps RL22 61gr.......3010fps 61.5gr....3059fps 62gr.......3071fps 62.5gr....Could not chamber!?! 63gr......3096fps H414 55.5gr.......2982fps 56gr..........2956fps 56.5gr.......2967fps 57gr..........2994fps 57.5gr.......2996fps H4350 54.5gr.......2809fps 55gr..........2828fps 55.5gr.......2858fps 56gr.........2902fps 56.5gr.......2943fps H4831sc 60.5gr.......2908fps 61gr.........2943fps 61.5gr......2961fps *pressure signs* 62gr.........2966fps *pressure signs* 62.5gr...... Not fired
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BCSteve
Your experience mirrors mine. 62gr R-22 BUT with the 140 Accubond or the 145 Speer.
WN
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Very nice, I'm a fellow SAUM lover and I have a Model 7 Magnum Stainless in 300 SAUM which I love dearly, I also have a Ruger M77 MKII All Weather chambered in 7MM SAUM. Unfortunately I can't afford a scope for that badboy yet so I haven't done any load development for it but I will share with you as soon as I do.
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nice, i keep looking at used M7s in 7mm RSAUM... Wish I had a chrony and a place to use it...
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just used 160 accubonds with rl17 56grns and shot 5 groups in a row under .600 " at one hundred yds fps is 2785. 3 shot groups .
trying 150 grn nosler partitions next week i had them at 3000 fps with rl17 but did not get the accuracy i was after .
i will let you know what load works best when i find out .
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I think you can get any of those powders to shoot well. I am assuming that is a ladder test?
NRA Life Member
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I think you can get any of those powders to shoot well. I am assuming that is a ladder test? Somewhat of an abbreviated ladder test. I have lots of powders that are suitable for this cartridge so I wanted to narrow it down for velocity and accuracy potential. Looks like RL22 is the choice on both counts.
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I have a model 7 that I had rebarreled because the factory barrel had a lot of rough spots in it and the chamber had a flaw that made marks in the brass. I now have a Lilja barrel on it. Regardless, it shoots the 140 Sierra boattail very well with 60 grains of IMR 4831 and Federal 210M primers.
Bob257 7mm fan!
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By the way, the rifle I'm holding in the picture is the 7 SAUM. Restocked, rebarreled, coated by Mark Bansner.
Bob257 7mm fan!
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My 7 SAUM loves Re 22 under a 160 Partition but H4350 under a 140 Partition.
Good speeds BTW on the 154.
Adversity doesn't build character, it reveals it.
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I'll have to look into messing around with RL22, but man do I have a rockin' load with 150 BT's and H4831.
I replace valve cover gaskets every 50K, if they don't need them sooner...
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How much H4831?
With the 140 H4831 was a really accurate but slow as heck. I'm going to chrono the 160 H 4831 load soon. It was fairly accurate as well.
Adversity doesn't build character, it reveals it.
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With a 150 gr. core lokt and 66 grs. of H-1000 I got 2966 f.p.s. out of my 700. 67 grs. of the same powder gave me a little over 3000 f.p.s. with a 150 gr. nosler. 58 grs. of H-4350 with a 140 gr. accubond gave almost 3200 f.p.s. All of these loads shot really well too.
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Campfire Ranger
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How much H4831?
With the 140 H4831 was a really accurate but slow as heck. I'm going to chrono the 160 H 4831 load soon. It was fairly accurate as well. 62 grs. gets me 2935 fps out of my 22" barrel. I can mash the pedal a bit more, but why?
I replace valve cover gaskets every 50K, if they don't need them sooner...
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Very Nice!
You mean you're leaving 27 ft/sec on the table!?
Watch you'll lose your Looney Card......
Adversity doesn't build character, it reveals it.
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anyone tried rl25 with 150 gn partitions h1000 did not show acceptable results so i bought rl25 and was wandering if anyone had any data they have worked up aliant only lists it at 160grn
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I too am using H4350,under 140TTSX in my 7SAUM.Excellent groups so far,I'm still tinkering a bit! Monashee
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i got 160grn accubonds going 2800fps with RL17 and groups are 1/2 moa I would just like a little more speed so I'm going to see what Rl25 and hybrid100 will do
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I get 2800 with a 160 Nozler with R22 as well, oh wait that's with my .270... Dober
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