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How dependable are 223 loads in Hornady's 7th edition?

 
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  #8  
Old 12-23-2012, 06:05 PM
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Re: How dependable are 223 loads in Hornady's 7th edition?

Where are you getting 500 fps difference? You state one lists at 2800 and the other is 2805. Isnt that just 5 fps different?
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  #9  
Old 12-23-2012, 07:18 PM
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Re: How dependable are 223 loads in Hornady's 7th edition?

I am chronographing 2300 fps with 20.8 gr. Hornady shows 2800.
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  #10  
Old 12-23-2012, 07:21 PM
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Re: How dependable are 223 loads in Hornady's 7th edition?

I see what your saying now. How was the conditions when you used your chrono. I had two days this summer it gave me low readings but not that low.
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  #11  
Old 12-23-2012, 08:01 PM
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Re: How dependable are 223 loads in Hornady's 7th edition?

The sun was starting to hide behind th mountain, but the sky was still bright and mostly no clouds. My readings with my other load, 70 gr Berger at about 2860, so I'd say that's not the issue.
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  #12  
Old 12-24-2012, 03:19 PM
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Re: How dependable are 223 loads in Hornady's 7th edition?

h335 sometimes seems to be "that way" when it comes to charge wieght in some rifles. Their barrel simply hit max. pressure a lot sooner than your barrel will.
We had that happen with hodgdon h335 data years ago with 30-06 rifles using h335 and 150 grain pills. We(sister, Dad, Dad's buddies) killed a mess of deer with the doad until my Dad built a chrono and we found out the dang load was 400 fps short of projected and has 100 fps x's. Switch powders and the load data was correct for vel. and the x was a bunch better. Funny thing, when I got old enough to load my own rounds, I used up the last bottle of h335 with 165's at a higher charge weight than we were using with the 150's in the '06.
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  #13  
Old 12-24-2012, 07:15 PM
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Re: How dependable are 223 loads in Hornady's 7th edition?

Quote:
Originally Posted by Lefty7mmstw View Post
h335 sometimes seems to be "that way" when it comes to charge wieght in some rifles. Their barrel simply hit max. pressure a lot sooner than your barrel will.
We had that happen with hodgdon h335 data years ago with 30-06 rifles using h335 and 150 grain pills. We(sister, Dad, Dad's buddies) killed a mess of deer with the doad until my Dad built a chrono and we found out the dang load was 400 fps short of projected and has 100 fps x's. Switch powders and the load data was correct for vel. and the x was a bunch better. Funny thing, when I got old enough to load my own rounds, I used up the last bottle of h335 with 165's at a higher charge weight than we were using with the 150's in the '06.

I find myself using BLC2 and 2015BR in that family of cases far more than anything else. I try other powders, but in the end always come back to these two.
gary
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  #14  
Old 12-24-2012, 08:36 PM
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Re: How dependable are 223 loads in Hornady's 7th edition?

Quote:
Originally Posted by Trickymissfit View Post
I find myself using BLC2 and 2015BR in that family of cases far more than anything else. I try other powders, but in the end always come back to these two.
gary
if the bullet weight is up to 75 grains or so a 223 will like 4895 a lot. Tac is a strong second.
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