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  1. Hedge

    How do you calculate power factor?

    Re: How do you calculate power factor? Ooops! Tnx Jim. Brain activity didn't find it's way to the keyboard.
  2. Hedge

    Rifle Scopes Vortex Viper PST with EBR2?

    Re: Vortex Viper PST with EBR2? Drew - The more I look at it, the more I like the EBR-2. Same as the EBR-1 in the PST FFP except for the additional etching on the lower half. Might just have to get another rifle if they come out with EBR-2 for the PST.
  3. Hedge

    Rifle Scopes Vortex Viper PST with EBR2?

    Re: Vortex Viper PST with EBR2? PST FFP 4-16x50 EBR-1 is also different from the SFP. +/- 8 mils wind & elev, with .06 mil cross hair subtension. L,R & Top scale in .2 mil graduations for last 3 mils.
  4. Hedge

    How do you calculate power factor?

    Re: How do you calculate power factor? Major is 165 or greater.
  5. Hedge

    Seating depth variations

    Re: Seating depth variationso Yeah, chase the lands, but only with Hornadys because of the secant ogive. They're kinda touchy about seating depth. +/- .003 doesn't seem to affect my groups much, but .005" really does. Go figure. Sierras I quit using. For whatever reason, my rifle spits 'em...
  6. Hedge

    How do you calculate power factor?

    Re: How do you calculate power factor? PF = bullet weight x velocity PF/bullet weight = velocity PF/velocity = bullet weight That help?
  7. Hedge

    Which charge for this OCW?

    Re: Which charge for this OCW? Yup, sub MOA. It looks like you're a trigger man capable of what your system can do. Once you find your load you just have to tweak the seating depth and you should be making bug holes. Looks like the 208 Amax has a secant ogive. If that's the case, it will be...
  8. Hedge

    Seating depth variations

    Re: Seating depth variationso +1 what Ballistic308 said.
  9. Hedge

    Which charge for this OCW?

    Re: Which charge for this OCW? Kinda what I thought he'd say regarding the high end. He's good at what he does. With the way you're shooting, that little extra velocity at the high end may just give you the edge to give those .308 shooters a good run.
  10. Hedge

    Which charge for this OCW?

    Re: Which charge for this OCW? Looking good. I knew there was some variation in POI albeit small. I'm thinking that your 51.5 gr load is your accuracy load. It seems to start to open up at 52 gr. Dan says there are 2 nodes to look for. 1 about mid range and another towards the high end...
  11. Hedge

    Which charge for this OCW?

    Re: Which charge for this OCW? On that last target, they're not really hitting the same point. Connect the center each shot in a group to form a triangle. The center of the triangle will be your group center. You'll see how that center moves from group to group. There's a free program called...
  12. Hedge

    Seating depth variations

    Re: Seating depth variationso For what it's worth, I measure my bullets from base to ogive with a comparator and sort by length. I've found Sierras to run +/- .005 from mean. Noslers, on the other hand, have never varied more than +/- .001".
  13. Hedge

    Rifle Scopes vortex shadowing issue when dialled to 100 yard

    Re: vortex shadowing issue when dialled to 100 yard Have you considered using a set of rings or a base that will put some pitch in your scope? Burris makes Signature Zee rings that have inserts to adjust your pitch. You could then zero at a longer range and still have plenty of elevation for...
  14. Hedge

    Which charge for this OCW?

    Re: Which charge for this OCW? Correct, you're looking for 3 consecutive groups that have the same POI and not necessarily the tightest groups. That you can tighten with seating depth. Trailrider is right about setting it back to lower the pressure. Seating against the lands doesn't always...
  15. Hedge

    Which charge for this OCW?

    Re: Which charge for this OCW? Tough call for me, too. I'd pop over to the Practical Riflery forum and ask Dan.
  16. Hedge

    DIY Chamber Length Gauge

    Re: DIY Chamber Length Gauge If you want to know exactly what your chamber dimensions are, Cerrocast the chamber.
  17. Hedge

    Quick question on OCW testing

    Re: Quick question on OCW testing Consistency in your test. Basically, you're doing an experiment where you do your best to minimize your variables. Barrel heat plays a significant part. By giving your barrel the same amount of cool down time between shots, you're minimizing the effect of...
  18. Hedge

    Quick question on OCW testing

    Re: Quick question on OCW testing Consecutive. You're looking for a load band that will give you the same POI +/- your load increment. That would be the middle group of the three consecutive groups.
  19. Hedge

    Primer Selection for 5.56 Accuracy Load

    Re: Primer Selection for 5.56 Accuracy Load <span style="font-weight: bold">2clicks -</span> I noticed you said you used CCI400s. I started using them and was running into primer cratering with mild loads. Understand that 'mild' loads in a .204 still run 40k psi. Did some research and found...
  20. Hedge

    Rifle Scopes Burris Signature Zee rings 30mm

    Re: Burris Signature Zee rings 30mm <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ohmosy</div><div class="ubbcode-body">i just picked up a set of 30mm mediums at the Sportsmans Den in Shelby, Ohio this afternoon. i believe they had others in stock. maybe they...
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