Wound’t magnetospeed readings be usually a tiny bit highter, since it measures the relative speed among exiting bullet and recoiling rifle, rather than the relative velocity amongst bullet and “earth”?
IMR 7828 SSC is usually a magnum rifle powder with the exact same melt away rate as standard IMR 7828 and makes use of precisely the same knowledge. On the other hand, mainly because of the Tremendous shorter kernels, metering is just about pretty much as good for a spherical powder.
Loading density is ideal for magnums, nicely filling the situation at highest costs, contributing to outstanding uniformity and accuracy.
They haven't taken them off their web site and possess no mention of them being discontinued on site? In which you hear this? I googled it and only thing that will come up is this publish?
Actually, every so often Now we have witnessed an inversion of the powder temperature – muzzle velocity romantic relationship for a particular great deal of powder where the muzzle velocity in fact lessened since the powder temperature greater.
Probably they can not even do this now. It could reveal why locating a large amount of those powders is exceptionally hard the previous few months while others coming from Australia and Europe are still showing up listed here and there.
Hi. I uncover all of your posts quite usuful and applicable. Can you give us an improved indicator of how the Magneto Velocity chronograph calculated up on the doppler radar?
Many thanks, R700. Sounds like nearly as good of an explanation as I’ve heard. Certainly matches my working experience. On a aspect Observe, I do use H4350 in my 22″ six.5 Creedmoor and I love the final results I’m finding. But I don’t doubt that I'd have the capacity to squeeze a little more muzzle velocity from A different powder. I know a great deal of fellas chase that final small bit of muzzle velocity, but Those people 25 or fifty fps bumps have virtually no influence on hit chance when it comes imr 7977 in stock to extensive variety targets.
2grain costs . Conversely the brass they use is totally worked over and downselected ,they might use only 10 scenarios from the 100case box and operate the same 10 instances till the barrel is toast.
I am aware there are some type of recoil calculators, that would calculate recoil drive and pace (I believe), but I in no way played all-around with a person to view if it’s truly inside a magnitude range to bring about a variation, also they don’t choose recoil administration and muzzle units into consideration.
No matter whether which was due to temperature improve or Jim's shooting, we cannot IMR 7977 say. Whatever the bring about, from the hunter's point of view, accuracy was basically unchanged.
Undecided why yet, as it was just introduced, but Hodgdon will no more offer you any in the IMR Enduron merchandise line of powders.
I shot The full string imr enduron powders of cold at the same time. All of the scorching. All the ambient. I waited ten minutes among the strings. I had the timer established on my mobile phone so it was fairly exact in my view
Terrific get the job done Cal. Could you explain to me should you experienced one hundred% powder burn up in the 22″ barrel? Also was the pace determined by the Lab radar and confirmed with Magnedo, or ordinary of both.