How did you make the chamber?  25-35 reamer followed by a .28 throat reamer? Customer reamer?

John, How long is your brass?

The chamber is cut with a custom reamer I have. 

JerryH

Bob my brass is cut and trimmed to a length of 1.958. I have not shot it over a chrongraph as of yet as I have not found the need. I am not one who is stuck on the need for speed but on the ultimate in accuracy with minimal rifle movement on the bags. 1600fps. plus should be very easy to achieve and I beleave I have been there on several occassions during load development outings but the results I was looking for were not.
16-1 alloy is what I prefer for a spitzer bullet to minimize nose slump and I am currently trying 20-1 for the sake of possible increased accurracy and possibly better bullet land and groove engagement. Leading for me has not been an issue not even little flakes when I pushed it real hard. I have not seen any pressure signs on the primers but the cases start getting a little sticky at around 13grs. of 300MP but still extract with no problem. I have gone up to 13.4grs but accuracy falls way off and my rifle seems to shoot the best in the 12.0 to 12.3 range depending on the Temp. for the day. I personaly have not seen an increase in wind drift compared to the 32-40 or 33-47 with either the 147gr. Mos or the 155gr. Darr Truncated bullets. All in all it is an extremly comfortable and pleasurable cartridge to shoot off the bench and no wads to retain the powder are required that typicaly get blown of the bench and I just use a single case. My lube is 75% Javelina Schuetzen Lube and 25% Dell59C and I refer to it as being JJ250. The 59C creates quite a bit more shrinkage to the JSL and makes it easier to remove the lube cakes from the pan lubing pan. 

I hope this helps to answer some of your questions?

JLouis

Bob it is made up of Synaceti, Lead Sterate, Ivory Soap Beads, Pure Bees Wax, Castrol Oil and Lanolin or you can purchase it from Willis Gregory / Singleshot on this site. The first two ingrediants are extremly hard to come by. Prior to Charlie Dells passing both he and Willis have provided enough of those two ingrediants to last me a lifetime. It is the lube that I used for about 12 of the 16 years of my competitve shooting. It is a great lube especialy when used in a Dell lube pump of which Willis also makes or used to? You can pan lube with it but it is not as user friendly as the JSL when doing so and the JSL is being sold by my close friend and I also like to support his endeavor. One would also be hard pressed in my book to find a better lube than the JSL and it is being used by the majority of our group. 

JLouis

Bob if you send a couple of bullets to Willis if he still offers the service the die will not bleed lube and a real pleasure to use. Prior to my wrist injury I would just Lube enough bullets the night before while watching TV  that I thought would get me through a Match. If I came up a few short I would simply Lube a few more during a break. I used to be very fond of freshly lubed bullets but I really don't think it was all that critical in the long run. If one was using a good lube to start out with? 

JLouis

Bob you can pan lube with the 59C that is what it was made for. It just takes longer for the lube to melt / higher melting tempeture and the bullets are harder to push out of the cake if you wait to long / a harder lube. I have used it when the puddles are frozen over and when its 105 so it might be worth giving a try in your 33-47.

JLouis

Nice targets and  consistency John, but you seem to be stuck in a rut