12:1 shot 5 points higher than 16:1 at 800 meters yesterday.
first 2 sighters just over the top of the icfra target.
while this is still in the realms of atmospheric issues, the trend seems to be that 12:1 has less drop.
keep safe,
bruce.

10 to count, then 10 to count again.
we are allowed 2 convertible sighters per string.
conditions requires 6 to 9 points windage adjustments, so cut both sighters the second time around also due to low scores.
the odg had no sighters, so we must have a lot of respect for them!
keep safe,
bruce.

That's interesting stuff Bruce.  All of the information in Sellers book indicates hard alloys like this for the Creedmoor shooters.  I will have to re-read Perry's book to see what he said on the subject as it's more likely to be relevant than what's in Sellers. 

I think that the old bullets were not quite as pointy as what we shoot today as well.  When I shot with Orville in Phoenix this spring he gave me a bullet that he says is a very close copy of the original Sharps long range bullet and it's certainly less slender in the nose than most of the elliptical and money bullets being used today.

Chris.

I wonder if he was correct?  I can't remember seeing a Postel bullet in the equipment list for a top long range shooter for a long time.  Nowadays it's almost all Buffalo Arms Money bullets and a few people shooting bullets with an elliptical profile.   

Sometimes there is an element of fashion in the shooting sports though

I do know that the previously popular "Creedmoor" nosed bullets are less good than the modern ones for LR.  Those tend to top out with BC's well under 0.5.   

Chris.

The Money bullet has a fancy name, but it's really just a tangent ogive design with a small hemispherical tip, plus they often have smaller grease grooves for less drag.  Dan's original name for the bullet was basically that description

I know that Dan corresponded with Dr. Gunn regarding bullet designs and other things.  I wonder if they talked about that design?  From what I've heard, it's not too different from some of the very early target bullets.

Chris.

this book can be read online free .
look up archive.org, thr look for the title.
author is walsh j h.
check different formats for ease of reading.
keep safe,
bruce.

I've wondered about that Mercury in bullets. The stuff boils at a low temp, so wouldn't it just disappear from the pot?
Maybe whoever started that story misidentified what was in there? 
I'm from an area where mining used Mercury a lot in my youth, and have seen retorts used in assay and separation operations in gold mines. Bunsen burner would cook it away to a mist and up the tube to condense and drop into a beaker as fluid once more