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300 win mag 190 grain matchking load

 
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  #1  
Old 12-07-2010, 07:21 PM
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Join Date: Feb 2009
Posts: 2
300 win mag 190 grain matchking load

Hey guys, i read the forum often, but this is my first time posting. I am looking to work up a load using rl22. I have an older sierra manual and it does not list rl 22 for the 190 grain matchking. Could someone help me out with the starting and max loads? Also, someone had told me that it is a good idea to load to around 2950 fps. If anyone is shooting 2950, what is your load. I am not new to reloading, just looking for some insight. I appreciate any help. Also, does anyone have any experience with Kenton Industries? As far as sending them the data to have a scope knob made and how accurate the results are?

Winchester post 65 model 70 hart heavy varmint taper barrel chambered in .300 win mag
glass bedded in a fajen laminate thumbhole stock
Super Sniper 20x scope
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  #2  
Old 12-08-2010, 10:43 PM
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Join Date: Dec 2001
Location: Winterville, NC
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Re: 300 win mag 190 grain matchking load

jdn,
Nosler's latest (#6) manual list 72.5gn RL22 for the 200gn bullet and 75.5gn for the 180gn. What I normally do is add these two up then divide by 2 to get the 190gn max load of RL22 (i.e. 72.5 + 75.5 = 148. Take 148.0 divide by 2 = 74.0gn). Works for me.
I haven't tried RL22 with the 190gn SMK. I did try RL25 but nothing really impressed me and I laid the 190's down for a while. I picked them back up a couple months ago and used them with some H1000 and CCI 250's and found 79.0gn shot great in my rifle. 3078fps @ .142" (100yds). JohnnyK.
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  #3  
Old 12-09-2010, 04:03 AM
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Join Date: Apr 2009
Location: D11
Posts: 56
Re: 300 win mag 190 grain matchking load

RL22 start load 65.8 max load 72.7
sierras accuracy load RL22 70.4gr. 2900fps
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  #4  
Old 12-09-2010, 07:40 PM
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Join Date: Feb 2009
Posts: 2
Re: 300 win mag 190 grain matchking load

Thanks for the replies.

I have considered giving H1000 a try, it seems a lot of guys are using it with success. I think I may have to give it a try.
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