Hmm, i can see where we as a forum got a little off track on this thread. You have components and want to shoot, you're asking for a good starting load. I get it, I've been there. (7Saum and N560)
Here's the problem:
A) we want everyone to be safe, survive, and keep their eyes and fingers; so we ask what are your goals, or what are you loading for.
B) we do get a LOT of people on here just asking for a load and not knowing the risks, liabilities, safeties, AND we've had a few (6.5 creedmoor <cough>) types who argue that a load like 4300fps with a 142 from a 16" barrel is safe because their friend says so...
C) internet search frustrations, some of us on the forum forget that we were new, and get a little frustrated when the search features / Google isn't used and described as used before posting...
We're not all tech savvy,
Yes i shoot 6.5 Creedmoor;
Yes i can give you a starting load that will make a bang and the bullet will come out of the barrel.
No, you won't like the results because it'll be dirty, need more elevation than expected, and i honestly don't think it's worth the time and effort.
Only reason I'd provide a starting load is if you "Needed" to go fill the freezer which has different driving needs beyond component shortage.
That said, N160 could be the next Creedmoor thing, look at 243 Win and really slow powders and really heavy bullets in an attempt to fight barrel life!
We are making the assumption that components acquired under shortages mean that you're not really interested in the finer points of cutting edge load workups and 10k round barrel life experimentation?
Our recommendation:
Easiest for you, sell that powder (locally) or trade and get another powder more inline with established published loads, we can give you a ton of recommendations, all will perform great, and set a bullet to 800y, and more than likely will have potential to hit within an 8" target too.
So, i suppose then, the question to you is; will you take our recommendation and change either powder or bullet; or do you really want to go down the path of long seated, long barrel, slow burn rate powder to hope you achieve a near performance of what could have been done with a change of components?
-Mac