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180gr 300WSM loads? favorites?

 
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  #22  
Old 02-12-2012, 10:51 AM
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Re: 180gr 300WSM loads? favorites?

I should have been more clear earlier. I was referring to the SSC version of 7828 as well. Sorry.
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  #23  
Old 02-26-2012, 04:22 PM
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Re: 180gr 300WSM loads? favorites?

Well, I shot mine some today...Looks like about 63.0 grains of H4350 is going to work in my rifle. Shot down in the 6's with low ES and rough average velocity of 2925 in my factory 23" barrel.
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  #24  
Old 02-26-2012, 04:26 PM
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Re: 180gr 300WSM loads? favorites?

Holy cow that's encouraging! Mines gonna be wearing a 26"pipe, so 3100 may be a realistic goal, as long as accuracy is still there.
Thanks for the update!
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  #25  
Old 02-26-2012, 06:13 PM
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Re: 180gr 300WSM loads? favorites?

H4350 got better until I stopped at 63.0. This is close enough to max for me for now as it was 31 degrees while I was shooting. I may bump it up a little this Spring. If you can run them in your mag any longer than 2.86, you will free up a lot of capacity in the case and 3100 should be very realistic. Keep me informed.
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  #26  
Old 02-26-2012, 06:57 PM
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Re: 180gr 300WSM loads? favorites?

Quote:
Originally Posted by 6.5Express View Post
H4350 got better until I stopped at 63.0. This is close enough to max for me for now as it was 31 degrees while I was shooting. I may bump it up a little this Spring. If you can run them in your mag any longer than 2.86, you will free up a lot of capacity in the case and 3100 should be very realistic. Keep me informed.
Thanks 6.5Express,
Winchesters have quite a bit of length in the mag, but mine will have more than usual.... It's being built on a long action!!
Ooooooo I can't wait!!!


Before anybody jumps my case, or starts in on the whole 230 Bergers thing, I am only running Bonded bullets in my hunting rifle. It's a personal choice. I have no experience with Bergers, & I'm not knocking them. I just like what I like, & I trust my Accubonds.
I KNOW I KNOW, I have tons of room for longer bullets, but I don't want to run 230 Bergers.
I may look a little closer at 200gr Accubonds, but I'm guessing that the reduced velocity would keep me in a very simmilar max range for proper bullet expansion, & kinetic energy as the 180.
Someday when I can afford it, Ill get an Edge built for anything longer range than the 300 running Accubonds can handle.
I like to keep my self in check, & operate within what I feel are mine, & my cartriges effective range. If I wanted to go longer, I'd have a different cartrige, not a different bullet.
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  #27  
Old 02-26-2012, 07:35 PM
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Re: 180gr 300WSM loads? favorites?

I load for 2 different 300 wms's (tikka and weatherby). both had excelent luck w/ 180 AB's and with H 4350. I achieve about 1/2" groups w/ the tikka and about 3/4" with the weatherby. both push 2950 at the muzzle. I've tried reloader 19 but didn't have that good of luck with it. I do load for a 325wsm and that is the load of choice (light load of 19).
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  #28  
Old 02-27-2012, 04:42 PM
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Re: 180gr 300WSM loads? favorites?

I highly doubt you'll reach 3100 with H4350 and a 180 even with a long tube. I don't see you hitting a true 3100 with anything but RL17.

H4350 will get you to 3000 or just above with the longer barrel.

Another thing you may consider is running a 165 AB with around 66 grains of RL17. In your barrel you'd probably be around 3225 fps pretty easily. Or, if you don't like RL17 you could run it with H4350 at 3075-3100 fps.

My personal choice would be to run the 200 Accubond at 2900 with H4831 or IMR 7828ssc and outperform the lighter 165-180 ABs by a significant margin.

The step from 165 to 180 isn't all that great considering you can drive the 165 faster, but the jump in BC from the 180 to 200 is significant enough to produce 200 ft lbs of extra energy at 500 yards. This is comparing a 180 AB at 3050 fps to a 200 AB at 2900 fps at sea level. Then, if you wanted to reach out a bit further the 200 will produce at least 1800 fps to 775 yards.

Last edited by brentc; 02-27-2012 at 05:19 PM.
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