Help Support Long Range Hunting Forum
Looks like the BTO is pretty close so go with the longer one to move the bullet up, out of the powder as much as possible. One thing I have found with the ABLR in 6.5mm and 7mm has been they seem to shoot great with a big jump, ie. 0.100ish inch. Not sure why they like such a jump, but it followed in 2 separate cartridges for me.
Thanks for sharing your experience. I was thinking the LR would like a long jump.
I guess these days it depends on how your component supply is. I might shoot a powder ladder a smaller powder ladder up near the max trying to find that top node, then start seating tests. I guess you could shoot like 60, 70, 80,90, 100 looking at trends. Then focus in on the ones that look promising. If you use 1 shot per powder ladder step and 3 shots groups you might get these test done in 25 shots, 10 for you ladder then 15 for seating. That's not too bad.
Thanks. Your experience with AB's is vastly different from mine. But I only shoot 150 gr in a Steyr 30-06 and they are < 0.3 moa at 300 yd with 0.074" jump. The Steyr did not do near that well seated in the 0.020 to 0.055 range. Really tightened up above 0.060. It has shot 180 factory ammo to 0.75 moa since 1999.My experience with ABLR versus AB leads me to believe it will be really difficult to set jump for the ABLR AND AB's since the bullets USUALLY prefer radically different jumps. Every rifle I shot AB's liked 0.010 - 0.025 jump while ABLR's were more like a leap! There was a pretty good thread on ABLR's that I posted this up in another thread some time ago.
Nosler ABLR Testing
Ok, I will load up a few more with the load that looked like it had the most potential but with .120 jump. Was Just hoping to be able to go longer as they are already slightly compressed. Thanks for the advice.www.longrangehunting.com
My load development with ABLR's starts at SAAMI then lengthening and usually ends up slightly longer than SAAMI but always pretty good jump.
I would set the throat for the AB that we KNOW shoots pretty good with short jump and ABLR's tend to like jump.
I set a throat for a new build for one specific bullet knowing any other bullet would require tuning since prob not able to set for close jump. It was gamble and I am pleased with results.
Your comment is spot on why it is so tough to set throat before you shoot a bullet in a specific barrel. Basically a finger cross endeavor but seems to work out more than not.
