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Thread: Interesting results with seating depths

  1. #16
    Member Brian's Avatar
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    Tried the seating depths in the berger artical with norma bullets in a 308.
    Groups got a lot better at 120 thou jump.

  2. #17
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    I don't load smokeless powder but jump is important as without it you can get a pressure problem, is this correct?
    Boom, cough,cough,cough

  3. #18
    Almost literate. veitnamcam's Avatar
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    You can load with no jump perfectly safely. Just work up as normal don't jump in at 5gr over book max and jam them into the lands

    Sent from my GT-S5360T using Tapatalk 2
    Maca49 likes this.
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

    308Win One chambering to rule them all.

  4. #19
    ebf
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    Quote Originally Posted by veitnamcam View Post
    You can load with no jump perfectly safely. Just work up as normal don't jump in at 5gr over book max and jam them into the lands
    Don't be a killjoy VC, you aren't a real reloader unless you've flash burnt your eyebrows off at least once in your life
    Viva la Howa ! R.I.P. Toby | Black rifles matter... | #illegitimate_ute

  5. #20
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    Brian's group shrunk considerably as the jump got larger it was very apparent, my .243 is shooting cold bore exactly right then the next 2 will group very close but 3 inches low and 2 inches left, seems to get better with shorter jump anyone have any ideas?

    Thanks

  6. #21
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    Quote Originally Posted by nor-west View Post
    Brian's group shrunk considerably as the jump got larger it was very apparent, my .243 is shooting cold bore exactly right then the next 2 will group very close but 3 inches low and 2 inches left, seems to get better with shorter jump anyone have any idea

    Thanks
    Is the barrel just cold or have you removed the copper fouling too? ie clean barrel.

  7. #22
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    Clean and cold

  8. #23
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    Quote Originally Posted by Brenick View Post
    Is the barrel just cold or have you removed the copper fouling too? ie clean barrel.
    Bedding?

  9. #24
    Almost literate. veitnamcam's Avatar
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    Try just putting one oiled patch down it before putting it in the safe instead of cleaning it fully.

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    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

    308Win One chambering to rule them all.

  10. #25
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    Ok it was full of copper when I got it wouldn't shoot into 3 inches, thoroughly cleaned it shot under an inch and now it's shooting as above.

    Cheers.

  11. #26
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    Quote Originally Posted by veitnamcam View Post
    Try just putting one oiled patch down it before putting it in the safe instead of cleaning it fully.

    Sent from my GT-S5360T using Tapatalk 2
    +1. Don't remove the copper fouling. Just the powder residue and then shoot it again and see what happens. The totally clean bore could be your problem. A bit of copper build up can be a good thing for consistency.

 

 

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