2209 batch speed?

[BATattack]

Well just cracked my second 4kg of 2209 in about 5yrs (6.5x47 doesn't eat much!)

The new batch is MEM5273 and just curious whether people think it's a relatively fast or slow batch compared to others? Just wondering if I should load my normal charge or approach it with a bit of caution and do a work up with a chronograph?

[RDavies]

I have been using lot #5010 for the last 3-4 years or so and just switched to MEM5273. I found I had to load about .3gns less in a 284 to get the same speed, so it is marginally faster than my old lot of powder but from what I have heard is not as fast as some other recent extra fast batches.

[BATattack]

So it may be somewhere in the middle. My last batch was 4714 so even earlier than yours Rod!

[Brad Y]

Im onto 5331 as my next lot but still have a few kg's of an older lot. A few people here have apparently had pierced primers with this lot. My small amount of testing in the dasher has shown its a little faster but nothing to be worried about. 0.2gr less and its probably going to be the same velocity. Cant hurt to drop a grain and work up with the aid of the chrony again mate.