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Old 02-01-2008 | 08:45 PM
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sabotloader
Boone & Crockett
 
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From: Idaho
Default RE: throw our 777 away, look for this new powder

txhunter58

I know about the moisture absorbtion of T7 but frankly I have never had a problem with that particular aspect of the powder. Maybe I am just lucky where I live here in northern Idaho. I have had bottles opened for months used them at the range during rain and snowstorms with the caps off and the reloader spout on. I have shot these bottles through the chrono from the day they were new until the last grainual and really never showed a marked difference in velocity. I am one of those guys that leaves the ML loaded for months at time during huntin season - which is often very bad weather and never had a problem with ignition or velocity, using a 25 ACP or a Remington 209-4.

I am know expert for certain, but I do believe there is some sort coating material covering each granual of T7 that does help "resist" moisture. I have and would encourage you or anyone else to try this expreriment. Fill a small can, like a tuna fish can near full of water - pour 30/40 grains of T7 into a single pile in the center of the can. It will sink to the bottom immediately and form an inverted cone.As long as the water is not agitated it remain in granular form (appearance)in that inverted cone as long as you want to leave it that way. It does not swell up and disolved with out agitation. If you try this same experiment with real BP or any of the Pyro's or any of the other subs - the powder begins to dissolve immediate when it hits the water - in fact it is not long and the water will be black. Not so with the T7 - it retains its granular form and it's inverted cone until disturbed by movement or agitation. I further believe it is this film/thin cover that also increases the need for a hotter flame to ignite it. The last part of my experiment was then to draw of as much water as I could with a syringe (sp) without disturbing the cone. Again the cone retains it's shape in the bottom of the can. From there I have placed it in a heated area and allowed it to dry. Several days later the cone will be a solid again. You do have to wait until completely dry-but then youcan break up the pile load it and shoot it. I have never shot that across a chrono but it will shoot.

So in a lot of ways I think T7 gets some what of a bum rap when it comes to incedental moisture abortion. I have never had it clump up like APP of BM3.

Just my observations - nothing scientific but it has not let me down at all.

The real truth for me will be number of shots of equal velocity per 10 oz can to a comparable $20 bottle (retail) or $10 bottle (wal-mart close out) of T7.

The other thing that I do like is the decreased barrel pressures associated with B209 - that really interests me. As I have said I do have a couple of cans on order and really want to do some chrono exprimenting myself, but all still hinges on $/shot.


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