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.

 

[KyleR1985]

Loaded at 2.35” with windowed mag, and one Varget long at 2.39 because I had one case left to fill.

Loaded the lever at 65* in the house, shot at 35* at the range.

16” BCA 1:7 pencil barrel with gas port blocked.

 

[mustelid_master]

24 gr varget seated at mag length gets crunchy but shoots well @ 2750fps ish
23.7 gr xbr 8208 seated at mag length meters well and gets more velocity @ 2800+ ish fps

What barrel length for the varget load?

 

[T28w]

I’m currently trying a load of 25 g N540 & CCI 400 primers, Once fired adg brass with 77g TMK out of a 22 in tikka t3x lite. Threaded with a scythe on the end. My initial 5 shot group today seemed promising at about 1 moa. Speed seemed to be about 2800fps . Loaded up some more hopefully get a nice 10 shot group this weekend and go hunting next for some deer.

Edited post above and 10 round group picture added. Speed averaged 2857 over the 10 shots.

I have never seen Adg 223 brass, don’t see it as an option on their website. I’d like to try some, where did you find them?

 

[WiscoHoundsman]

I have never seen Adg 223 brass, don’t see it as an option on their website. I’d like to try some, where did you find them?

I ment ADI not sure if my phone autocorrected that or I just mis typed it. I’ll update that post

 

[philson208]

What barrel length for the varget load?

22" for both loads.