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Post by encoreguy on Feb 16, 2009 8:17:50 GMT -5
I know that people have had luck with both powders. Can anyone give me a comparision of advantages of one over the other. For example which one should be the least temp. sensitive, which one would give me 2350 + velocity with 300 grain bullets very safely, which one would be easier to ignite, which one would work best for both 250 and 300 grain bullets, etc? I have great luck with H4198 and have had no problems with it at all, I just want to tinker around a little yet this winter. I saw yesterday that my local store had both and I really don't want to lay out the money for both right now. Thanks!
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Post by dougedwards on Feb 16, 2009 9:13:43 GMT -5
I have used both extensively in the Savage 10ML and have never had an ignition problem with either. However I am usually not hunting in sub freezing temps. 68gr Reloder7 under 300 BO and crushed rib sabot got me to 2400 fps while 75gr 10x pushed me over 2450 but the recoil is brutal although neither push the pressure limits to an unsafe measure. Never have had good accuracy using H4198 so the Alliant powders were the way to go for me.
Doug
Doug
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Post by KerryB on Feb 16, 2009 9:20:43 GMT -5
I know that people have had luck with both powders. Can anyone give me a comparision of advantages of one over the other. For example which one should be the least temp. sensitive, which one would give me 2350 + velocity with 300 grain bullets very safely, which one would be easier to ignite, which one would work best for both 250 and 300 grain bullets, etc? I have great luck with H4198 and have had no problems with it at all, I just want to tinker around a little yet this winter. I saw yesterday that my local store had both and I really don't want to lay out the money for both right now. Thanks! You can use both 10X and RL-7 with both 250gr and 300gr bullets. You will get higher velocities with the 10X...........i would say in the 100-200fps range more velocity than RL-7. You will be using probably about 10gr more of the 10X than RL-7 to achieve these higher velocities, so your 10X won't last quite as long as the RL-7 would. I don't have a whole lot of range time with the RL-7, but i have shot quite a bit of 10X, and i haven't had any ignition problems with either of these powders although i haven't shot them in the extreme cold. I really like 10X with a 300gr bullet and feel that it is greatly overlooked in this application. Hopefully somebody with more RL-7 experience will step up soon................ |
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Post by Dave W on Feb 16, 2009 16:05:20 GMT -5
I would go with Rel 7 if you plan on using 250's. I was shooting 10X in cold weather a couple years ago and the load lost 250fps going from something like 40*-20* with the 250TMZ, 10X shoots better with 300's though for me.
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Post by rbinar on Feb 16, 2009 20:15:14 GMT -5
8-)There was a time when i could add a few comments. Here I can't seem to add a thing to the knowledgeable and well stated items already written.
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Post by encoreguy on Feb 16, 2009 21:59:56 GMT -5
Thanks guys! I am going to be testing some Lehigh bullets soon and I wanted another powder to try also with them. He sent me some 250, 275 and 305 grain bullets. I have never tried anything less than 275 grain in my gun. So I might just go ahead and get both R7 and 10X and try them both with my H4198. The bullets he sent me are beautiful and I look forward to testing them.
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Post by dougedwards on Feb 17, 2009 6:51:26 GMT -5
One more thing.........there was noticeable muzzle flash when shooting 75 grains of 10x under 300 grain projectiles. In our short barrels I am thinking that Reloder7 is just about perfect for 300 grainers. Anything heavier than that a reduced amount of 10x would work fine.
Doug
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Post by rrbou on Feb 17, 2009 7:37:20 GMT -5
I found 10X to be one of the most accurate powders for me with 300 gr bullets.
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Post by KerryB on Feb 17, 2009 8:52:04 GMT -5
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