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100g NBT IMR-4350

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  #1  
Unread 02-12-2007, 01:02 AM
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100g NBT IMR-4350

Went out the other day and worked around a load I thought would be ok. I have been getting somewhat unsatisfactory results with IMR-4350 and the 100g NBT. I think I worked it out with seating depth. And on top of that, what more can I expect from a factory rifle. Its hard for me to grasp that concept at times. I was originally loading my rounds with an OAL of 3.240" which was around .010" off the lands, I went back and loaded up some new rounds at 3.250", which is where I shoulda started in teh first place. I loaded up 3 rounds each at 51.9g, 52.3g, and 52.7g, W-W, CCI BR-2. I shot them at 200 yards. The wind was blowing around 10 mph as well. Not the best conditions for load testing, but I was going yote hunting in the morning and needed to get it done. I did not crono these exact loads, but previous testing was 3300fps, I figure with the extra .3g or powder and extra .010" length would add 25fps or so, so I'm just gonna say around 3325fps. I shot it at 500 when I was out yote hunting at a small dirt clod. Clicks seem to be dead on, or close enough to hit a yote. Heres the results.

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  •   #2  
    Unread 02-12-2007, 03:00 PM
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    Re: 100g NBT IMR-4350

    R---man 25-06 ,

    Pretty good for load testing and 10 mph wind.

    I -to get carried away w/group shooting and expectations from a factory barrel.
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      #3  
    Unread 02-12-2007, 04:21 PM
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    Re: 100g NBT IMR-4350

    Thanks Mike. Ya I been messin with this combo for the better part of a month now. Seems like I would get something decent, load up a couple to double check and they wouldn't be very good. I was wanting to take it yote hunting more this year, but got to carried away trying to find a load for it. Dang it anyways. I got my winter load down, now I'll need to start on the summer load soon...
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      #4  
    Unread 02-12-2007, 05:01 PM
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    Re: 100g NBT IMR-4350

    That's some pretty good groups, however you should be able to cut them in half using Win primers and IMR-4831. Try it, you might like the results.

    Tim
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      #5  
    Unread 02-12-2007, 08:02 PM
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    Re: 100g NBT IMR-4350

    Whats your load with IMR-4831 Tim?? Around how many grains anyways? Win primer make that much difference?? Whats the velocity like with your load?? Just curious, I dont have any IMR-4831 on hand at the moment, but might in the future...
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      #6  
    Unread 02-12-2007, 08:27 PM
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    Re: 100g NBT IMR-4350

    I'll have to dig it up, I know they were going high 33's and touching 3400fps. Got away from it cause the porkers I shot with them would soke up the hit and keep on going. Went to the Partitions and they done better but still not to satisfy me. Yes, the primers made a-lot of difference.

    I tellya, my partner ol Mikie/Tx is a 25 head. He has done more tinkering with this caliber than me but I will dig up what I had going and get back to ya.

    Tim
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      #7  
    Unread 02-12-2007, 09:56 PM
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    Re: 100g NBT IMR-4350

    I'm just curious as to what makes the big difference in primers?? Just a little bit different burn rate? Well if you find your loads, let me know, I"m interested for sure.
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