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Big question……… A few excerpts from my notes. The energy of smokeless powder is determined by the formulation of the powder; the morphology (particle geometry or shape and size of granules) of smokeless powder adds specific burn rates qualities. Surface area of a powder grain is determined by...

Good Design Keith When I look at the big picture I don’t see much room for improvement of the Benchrest Rifle as used today and feel the weakest link is the still powder temperature sensitivity. Any thoughts on how we can achieve the consistent burning you mention? Ken

Sorry Charles for getting so far off track. Gene Thank you for your response. You could be right but this is what I am seeing. Two major factors of tune : Powder temperature sensitivity; primarily a Arrhenius function where by the rate of energy created is increased with increasing...

Gene Would you please explain to me how this primary function works? Not sure if your altimeter is adjustable for temperature and may be more representative of Density Altitude ISA than for air density that varies with temperature or humidity. Thanks Ken

I still consider myself new to this sport. I shot my first Registered match in 05 (D Bay) with a borrowed rifle and then again in 06 with another borrowed rifle. The gentlemen that lent me these rifles have mentored me since day one. (It must have been hard for them) Right from the start I...

Hey Vince, Thanks for the offer. I did a search in some old threads and have found a lot of different options. Looks like STP, Mobil 1 Synthetic grease and a few others are common. I’ve got something to look at this winter….. Thanks All Ken

What kind of grease is bolt grease and can it be bought over the counter. My supplier is not able to send it to me anymore (CANNOT BE SHIPPED OUT OF THE U.S.). and I am looking for alternatives. Thanks Ken

Moisture and Anti Static coatings Anecdotal and values unknown but, I believe static concerns are two fold. First: Powder charges up readily through production, transportation and handling (Triboelectrically and Contact). Even before it reaches the powder measure and quite likely as it is...

Al Does the ground work? Boyd A couple of examples of Static build up. Pouring powder from one plastic bottle into another plastic bottle. Rubbing of powder over each other and over measure and components. Contact - with residual ES charged surfaces. A couple examples of factors...

Pete Thanks and the same to you. Enjoy…………. Don’t forget to think about all your friends up north. This winter when I get my first static shock I’ll be thinking of you in that hot humid south. :) Ken

In Quebec Unfortunately it is cold and damp but, no snow as of yet. I haven’t shot since St. J in October and can feel cabin fever setting in. I’ve been trying to talk myself into making the driving down to Camillus or Canastota but so far I am not there yet. Come on Dunham’s Bay…….. This...

Resistance-to-ground Sorry but; I do not know anyone that loads with one and I was wondering if the concerns were - static charge develop, static discharges or is it purely load development? Ken

How inferior our program is. I agree 100% that the best of equipment will most definitely give you a certain edge however; when some of these Top shooters have their head in the right place they can - within limits - use whatever is there and still win. Pete W. gives mention to this in...

Bob From Varmint Al’s web site under Conclusion: - it appears that even an "out of tune" tuner is better than no tuner at all. http://varmintal.com/aeste.htm Ken

I do not get out as much as I would like to but I have noticed more tuners being used all the time and was wondering if they shouldn’t be logged on the equipment list. For what its worth I like to check, what others are doing especially if they are at the top of the list. Ken

Mr. Collins I’m neither of those two professions but I do have a basic understanding of Temperature. Air Pressure and Humidity and their connection to Nitrocellulose. I was just curious as to what you were looking at and why? Ken

Water Content A very interesting post and in my quest for knowledge on humidity it has me asking a couple of questions. I noticed your reference to: Water content expressed in grams per meter; I’m more used to reading about atmospheric water content expressed using measures such as relative...

Arrhenius and Humidity My current thinking is that the Burn Rate Temperature dependence is not always linear with temperature and, its moisture in combination with temperature that defines how easily the flame front propagates (catalytically-driven process of powder elongation) through the...

Calvin No one is allowed past firing line except target crew once flags are set. What you may not be seeing is that there is usually a single designated person handling flags for your bench rotation. Ex: Smiley, Borden etc. You would help that person set flags (one set per bench) the night...

Direct measurement, which may be difficult. No doubt and as I was recently reminded, performance will be defined at target. Tuner or not. There is no shortage of variables and no single “Holy Grail” answer. NC is recalcitrant in the environment (Weather). Weather occurs primarily due to...