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  1. #1
    Ammocurious Rucker61's Avatar
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    Quote Originally Posted by Zombie Steve View Post
    I usually like to ladder up in 1% jumps in rifle (and usually less as I approach max). In this case, half grain increments. You might skip right over your sweet spot (or the threshold for overpressure). What cartridge are we talking about here? .30-06?

    Also - not trying to give you grief or anything, but you know the barnes all copper bullet is going to have a long bearing surface. What your gun likes for this probably won't be plug-and-play with a traditional fmj or amax of the same weight. No free lunch. Load development takes time and effort.


    Good luck on shooting the first rifle loads. Be safe.
    No grief taken. I shot the 150 gr last year in my .308 Tikka, and really didn't see much accuracy difference between 44 and 47 gr (one grain increments). I'd love to do more experimentation to really hone in on the best load, but with the scarcity of bullets, power and primers, I can't play around as much as I used to. I didn't see any pressure issues at 47 gr with the 150, so perhaps I should just start from there and load 3 at .2 gr increments. First time with the 168s, so I didn't want to jump into max load (45). I realize that the non-Barnes aren't drop in replacements, but as long as they group somewhere (and a known somewhere) I can at least stay shooting over the summer. I don't even have enough RL15 and Varget to load the bullets I do have. At least my arrows are reuseable.

  2. #2

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    Quote Originally Posted by Rucker61 View Post
    No grief taken. I shot the 150 gr last year in my .308 Tikka, and really didn't see much accuracy difference between 44 and 47 gr (one grain increments). I'd love to do more experimentation to really hone in on the best load, but with the scarcity of bullets, power and primers, I can't play around as much as I used to. I didn't see any pressure issues at 47 gr with the 150, so perhaps I should just start from there and load 3 at .2 gr increments. First time with the 168s, so I didn't want to jump into max load (45). I realize that the non-Barnes aren't drop in replacements, but as long as they group somewhere (and a known somewhere) I can at least stay shooting over the summer. I don't even have enough RL15 and Varget to load the bullets I do have. At least my arrows are reuseable.
    If you are not seeing a difference in group sizes from one test load to another, something is off. It could be many things. Most common is the OAL is too short and you are jumping the bullet too far to see where the rifle is really wanting the bullet at a certain velocity. Another can be the gun just doesn't like the bullet. Neither of my 308's shoot 150's for damn. They both shoot 175 SKMs in half inch groups. Barnes bullets are a PITA if you ask me. They are long and light, and this makes everything kind of a craps-shoot like Steve was mentioning earlier.
    Mom's comin' 'round to put it back the way it ought to be.

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  3. #3
    Ammocurious Rucker61's Avatar
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    Quote Originally Posted by SA Friday View Post
    If you are not seeing a difference in group sizes from one test load to another, something is off. It could be many things. Most common is the OAL is too short and you are jumping the bullet too far to see where the rifle is really wanting the bullet at a certain velocity.
    When we first set up the OAL, we backed off 0.05" from the lands, but the cartridge wouldn't feed from the detachable Tikka magazine. Right now I'm at 2.177" to the ogive, using the Hornady Comparator. Don't think I can get too much longer and still feed.

    Edit: and thanks very much for the advice. Given that the 150 will just be for goats and whitetails, I think I'll not worry about getting too hot. I'll just stick around 46 and play with .2 gr increments. My best three round group with 46 was 1.25" at 250 yards.
    Last edited by Rucker61; 02-11-2013 at 10:50.

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