Snubs,
Got to figure it's on a 50 yard range, heavy bags on a bench indoors.
I use ASC mags and load 73 ELDMs out to 2.300". I tested 75 ELDMs at 2.380" ish single fed. but if I cut out the front of my ASC mags I should be able to seat out around 8 rounds to 2.380" without modifying my magwell. The 73 gr EDLM is a max load, the 75 ELDM isn't. But both are the most accurate loads for the bullets so far.
Unfortunately not. I’ve been trying different powders for a while now with the 69 TMK and that bullet just doesn’t like being pushed hard in my rifle so far. My TAC trial showed +3” groups at the top end… lol. It’s been difficult to get good groups out of this bullet. I’m starting development with faster powders to see if I can find a good load. I’d love to get to 2850+ with good accuracy and no pressure, but I’m not holding my breath. The only reason I keep working this bullet is because I got like 1500 of them and I refuse to give up.
Are you sure you are not in the lands ? I had to drop all the way down to 2.230 inches to stay out of them on smk 69's. (0.006 jump)
No where even close to the lands in this AR rifle.
@towerofpower93
Not sure what you're using this bullet for, but I'd be happy with sub-MOA and an extra ~100fps from a powder that meters from a PM better than Varget, is cheaper than Varget, and seems to be in-stock more regularly (unlike Varget)
It was explained to me that Lovex used to be who supplied it to AA... But for whatever reason AA found someone else to buy it from. However, the formulations are so close as to be indistinguishable.
Just an FYI... I anneal after every firing, and set neck tension with a .222" Sinclair turning mandrel after I full length body size. I also lube the necks with Imperial dry lube prior to seating bullets. The neck tension & seating pressure consistency and CBTO length is paramount to getting good accuracy with these (they aren't forgiving like many other Sierra bullets). My 2.245" COL is more of a reference dimension (same COL that Black Hills uses), as I only really ever measure the CBTO (using Hornady comparator). 23.8 gr. is slightly compressed, so be diligent in being consistent in how you handle the charged cases prior to seating the bullets (I use an Area 419 drop tube)... measure CBTO on every round.
does that really mean anything ? if brass is annealed its going to be different from brass thats not annealed myself i can get different force pressures in seating bullets any where from 30 psi to 100 psi
ideally seating pressure should be the same +- from cartridge to cartridge. just because the brass is believed to be set the same does not mean it is .hence flyers
Seating pressure can come from neck surface condition and/or circumferential pressure. Hence why neck tension isn't holistic in it's description, to your point. So you get to choose one metric or the other, each with their flaws. So when the gen pop asks about neck tension, I reply with neck tension measurements.
