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  1. T

    Load work up?

    The method looks for a node(s) at which barrel harmonics allow bullets to exit the barrel on the same trajectory to the same POI even with small variations in powder charge. The full logic and instructions are here: OCW Overview - Dan Newberry's OCW Load Development System
  2. T

    Load work up?

    Another vote for OCW here. And a reminder that Federal Gold Medal Match 175gr ammo uses 41.75gr IMR4064. You're using Lapua brass, so the charge to duplicate may vary a bit from that number.
  3. T

    How many rounds through a chronograph for best results?

    Just guessing here, but I suspect - like me - you can't wait for the Labradar :)
  4. T

    Which OCW spread for .308

    I don't like 0.5gr increments in 308, IME 44.0gr is about all depending on what case you are using, and FGMM 175gr ammo uses 41.75gr of IMR4064. So I like your second set to which I would add 41.6gr. I would probably just make all my sighters/foulers at 41.2gr to get more info on that end...
  5. T

    Wobbly pilot in case trimmer

    Yes, you will be fine. Most of those tools have historically been chucked in a drill, and there's really no need to invest a lot of money in concentricity there. The RCBS 3-way cutters are compatible with the trimmer on the Universal Case Prep Center. I have two . . . 223 and 30-06. Here's my...
  6. T

    Wobbly pilot in case trimmer

    I have the same unit, and I know what you are talking about. There *is* "runout" in the tool bit section, but it should be minimal to non-existent when the more important tools - chamfer/deburr/reamer - are installed flat to the base to prevent wobble. This can be hard to do because tool's...
  7. T

    How many rounds through a chronograph for best results?

    Depends on how many rounds it takes you to knock it off the tripod :) If I am using a standard chrono (my CED M2), I'll shoot everything through it because sometimes the velocity explains something about the shot that the hole in the paper can't tell you. If I'm using a MagnetoSpeed, since...
  8. T

    .308 vs 30-06

    I reload both and find that process itself is the same for both, as you would expect. Ballistically the 30-06 is of course more capable but the 308 finds a way to keep pace for everything I do. Same powders, same bullets, though i have gone heavier with the '06 . . . just because it can. Hard...
  9. T

    .308 bolt difficult to close

    A full length resizing die will get the shape back into SAAMI spec, but the neck length (must be trimmed as/if necessary) and shoulder height are exceptions. The shoulder height (and therefore its "bump back") depends on how deep that die is set in your press. But in your original post...
  10. T

    Digital scale...

    My understanding is that scales using "magnetic force restoration" are more consistent than those using "strain gauge". So the major gain from, say, a GemPro 250 is to move to one using magnetic force restoration. I don't know what method the AWS uses but AFAIK the A&D FX120I is about the...
  11. T

    Digital scale...

    Doesn't look anything like the $200 model the OP posted.
  12. T

    Digital scale...

    If you want to move up from the Gempro, the A&D FX120i is a good bet. It replaced my Gempro 250. Cambridge is a Canadian outfit, so prices are in $Canadian. Shipment will come from a US outfit across the border, so no customs issues.
  13. T

    What .308 brass would be best to get max accuracy and why? New to loading rifles

    Case volume is the "important" measurement. Weigh, fill with water, weigh, calc the difference (water weight). Case weight is used by some as a surrogate for case volume, making the assumption that heavier cases of the same external dimensions have less case volume. This is likely correct for...
  14. T

    OCW - Rifle seems to always hit same spot regardless

    Deleted: another reading comprehension error :(
  15. T

    Virus Problem?

    Tonight going directly to the Reloading Forum's front page via IE's Favorites Bar, Norton blocked an attack. Couldn't get a screen shot. Since that page contains no posters' links, the malware (in my case) is likely from an advertisement, no? FWIW, a second attempt to reach that page via IE's...
  16. T

    OAL - Does this seem right?

    Please let us know what the outcome is :)
  17. T

    What tool do you use to measure if your case neck is getting too long?

    Deleted: Reading comprehension error :(
  18. T

    OAL - Does this seem right?

    LOL - doesn't change the issue you raised, which is the difference and its direction - but it did allow me to compare your measurements to my own 308. I measured my "168gr FGMM" (Sierra 168 in a Lapua case) at 2.800 COL, 2.226 to the ogive. Given our tools and normal variation, that's certainly...
  19. T

    OCW which one?

    Your 42.8 and 43.6 don't have similar POIs, they are your best groups. Need to look at groups immediately around them for direction. Your 42.4 and 42.8 have similar POIs, but it shifts and opens up by 43.2. I'm thinking 42.6-42.7 for that node. Assuming you shot 44.0 and 44.4 at the diamond...
  20. T

    Working up a load with IMR4064---Check my math.

    IMO, your 175s' spread is too wide to give you any info - the rest look OK though the 0.4gr intervals and some 0.5gr tics aren't my preference. That's a lot of shooting from one barrel - remember Dan's advice about cooling and cleaning intervals. Good luck!!
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