GetReel
Well-Known Member
ok, so I loaded up 14 rounds to check for pressure signs in my rifle. (Rem 700 6.5CM, 1-8.5, 24", 147ELDM, IMR 4955, Lapua SR primer, CCI 450 primers.
Book max is 39gr. (Book is listed with LR primers too). I loaded 1 shot each @, 37.4 going up to 40 in .2gr increments. I shot all 14 shots and no pressure signs at all.
I'm assuming the book is on the side of caution.
Looking at a powder burn rate chart, Hodgdon Superformance is right next to IMR 4955 but in the book, they list Superformance at almost 4gr higher load than 4955.
My question…. Would you load up more and keep looking for pressure signs based on that info? Or just start with testing?
Since 4955 is listed at one of the slower velocity powders in this instance, I'd like to get the most out of it as possible. This powder is what I could get my hands on for this project. I'm putting this together to hopefully shoot a PRS match next summer.
Sorry, did not have my chronograph with me testing the pressure sign loads.
I'd like to hear some thoughts.
Thanks,
Book max is 39gr. (Book is listed with LR primers too). I loaded 1 shot each @, 37.4 going up to 40 in .2gr increments. I shot all 14 shots and no pressure signs at all.
I'm assuming the book is on the side of caution.
Looking at a powder burn rate chart, Hodgdon Superformance is right next to IMR 4955 but in the book, they list Superformance at almost 4gr higher load than 4955.
My question…. Would you load up more and keep looking for pressure signs based on that info? Or just start with testing?
Since 4955 is listed at one of the slower velocity powders in this instance, I'd like to get the most out of it as possible. This powder is what I could get my hands on for this project. I'm putting this together to hopefully shoot a PRS match next summer.
Sorry, did not have my chronograph with me testing the pressure sign loads.
I'd like to hear some thoughts.
Thanks,