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Webby

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Posts posted by Webby

  1. It didn't require anywhere near as much adjustment with the heavier bullets. However the bullets I used were not in the quick load database so I used a Berger equivalent and altered the length. (Not very scientific). So I guess that something else is going on in QL with these powders. TBH I hardly use QL anymore as RS52 is my choice powder. I just head to the range with a large spread of weights in test tubes and my lab radar. Load single rounds looking at velocity and primer condition to start with. Then when I am somewhere close I load for group testing. I always hoped that QL would stop me having to load at the range but no such luck! As an aside I am pleased with the muroms even the std kv223 have not given me cratering at very stiff loads however this is prob due to my boldface having a nice small firing pin hole. However at the final F class match last W/E (cold&wet) my 1st cold barrel shot on both days produced a very noticeable click/bang delay. It didn't occur again after that and my overall result of 7th with a 3rd place in one of the 1000yrd comps was very respectable!

     

  2. TBH Laurie I don't think I ever got it right! Good scores at 800 but at 900&1000 the vertical came in big time! Launching it at @3060fps my ballistic calculator(shooter) said it would be above transonic just at 1000. However I always needed @2MOA more elevation than the calculator predicted so either the velocity(labradar) or the BC (using litz G7)or something else not quite right.

    A little scared to push it any harder so going to try some heavies!

  3. Just to back up Laurie's findings: I have used RS52 with 155 hybrids extensively in FTR comps. Having meticulously programmed all case/cartridge data I find that to make QL results tally with my findings I need to increase the burning rate of RS52 to 0.5500. Which is @10%. This is with the Lap palma case and small murom primer. MV measured with Labradar. Now trying heavier projectiles and being v cautious! When using Varget with the above combo I needed to reduce the burning rate by @5% when using the small primer.

    Edit: So in my case with my rifle the difference was @15% if you use QL std powder data! Please be careful everybody!

  4. Jeez I wish I had seen this before buying my Gem-Pro/Omega combo a few weeks back!!

    Gem-Pro seems steady if left on all the time and omega just doesn't flow steadily! needs a thump every so often!

    Still have doubts about gem pro accuracy. Maybe I should move on to this!

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