Load data for 77 TMK in 223

[Turdferg]

I had the 77tmk in a fired piece of 223 brass at 2.260 overall and just placing a second one beside it, it almost seems like the bullets taper is inside the neck of the brass. Like the very end of the brass neck on the inside isn't touching the bullet because the taper has started into the neck. Does that make sense? Lol

 

[gbflyer]

I had the 77tmk in a fired piece of 223 brass at 2.260 overall and just placing a second one beside it, it almost seems like the bullets taper is inside the neck of the brass. Like the very end of the brass neck on the inside isn't touching the bullet because the taper has started into the neck. Does that make sense? Lol

Yes it makes sense. It’s darn close.


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[Jesse Jaymes]

Following, as I am in the same boat. Anyone with loads for the 77 tmk and XBR feel free to chime in as well.

Months late on this. But that's jam in the Ackley Improved. My data won't relate, but I would invest some time into pursuing this if I were you. Seems XBR can be found online more often than not, and it meters pretty well. I love it.

I've streamlined all my powders to just three and buy pounds of it. H1000, H4350....and XBR

 

[Matt5266]

Months late on this. But that's jam in the Ackley Improved. My data won't relate, but I would invest some time into pursuing this if I were you. Seems XBR can be found online more often than not, and it meters pretty well. I love it.

I've streamlined all my powders to just three and buy pounds of it. H1000, H4350....and XBR

I did end up finding 4 lbs of XBR local to me and grabbed it up. I did work up a load for it that shoots great. Took it hunting this year but passed on all the bucks I saw. Hopefully get to put it to use next year.