I have some IMR, and it's shorter and smaller than the H4895, but it's not current production. As far as velocity, I know several shooters that have used H4895 (Larry Baggett, Bro.D, Brian Turnbull, Steve) all of which shoot registered matches. They shoot around 30 gr, and have chronographed velocities around 3250 fps. Now I know the powder is a little slow since I have seen velocities up to 3500 with faster burning powders. The main reason for this thread is to determine if the IMR version is faster since the burn rate of the H is borderlined on being to slow. It is also to determine which one of the to is truley smaller grained. Remember I only am curious about the latest manufactured. I personally have some IMR surplus, and it is definetly hotter and smaller grained than the new extreme H4895. As most of you know, the IMR line of powders were most always a little hotter than the H series. I'm looking for hard facts, not opinions. Does anyone have both of the newly manufactured? If not, the only way for me to find the facts are to buy a pound of each and get out the chronograph. A lot of these guys are using Chargemasters, or another method of weighing charges, so it's getting to the point where burn rate is the key, not how it flows through a measure, but I still like to see a powder that will throw consistent.
Now below is two pictures of what I was referring to before. I thought all Hodgdon powders were made in Australia and packaged in USA, but notice what my H4198 says at the bottom. This was purchased from PV in 2008. Where in the USA was this made?
Michael