300 win mag chamber length

Discussion in 'Reloading' started by tbrice23, Mar 4, 2013.

  1. tbrice23

    tbrice23 Well-Known Member

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    Hello this is my first post. My savage LRH 300 wm chamber is 2.653 id like to trim to. 010 less. I know 65k is a lot of pressure. Will this be advisesble? My longer neck calibers all have less runnout ive tried .303 mandrel with lee neck die im just not satisfied with 1 moa. 800 rounds down tube. Im running 75.3 rl22 win brass(ALL PREP WORK) 178 amax WLRM primers( next week gm210m) @ 3050fps. Also thinking about HS stock probably my last accustock ill ever buy.
     

  2. Lefty7mmstw

    Lefty7mmstw Well-Known Member

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    Huh??? take it easy and be concise but wordy enough that we can get your drift without seeing what you are talking about.

    Are you having an accuracy issue with your savage 300 win??
     

  3. tbrice23

    tbrice23 Well-Known Member

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  4. Greyfox

    Greyfox Well-Known Member

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    My experience has been that the 300WM is very capable of achieving runout measurements of .002" or less using the standard case. If your run outs are high I would look to your sizing and, or, your seating dye as the source of the high runout first. I'd be very cautious about extending your neck length with a standard chamber. IMHO
     
  5. Lefty7mmstw

    Lefty7mmstw Well-Known Member

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    What he said- I'd be worried that the front of the chamber would have at least a bit of taper....
     
  6. tbrice23

    tbrice23 Well-Known Member

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    My runnout with the hornady guage is >.002. What do u guys think of those accustocks I have both
    kinds regular and 10ba accu-WEDGE and I seem to always have better luck with bedding b&c or h-s stocks. I heve reserched and it doesnt sound like a good idea to try to experiment with accustocks besides action torque values. Would you recommend any tricks for accustocks or try re-stocking it?

    Before I go through all that Im going to try gm210m or cci250 primers.