camscaddy
I feel your pain. A new barrel is sometimes just that, A PAIN. I too, am working on loads for my new 243 barrel. Went through about 5 loadings today, with SOME good results.
The Sierra's are not doing as well as I had hoped, but I think it might take a while to break in this barrel. I had a lot of stuck cases today, so I have that issue to figure out as well.
I had some Barnes TSX 85gr that were showing a real nice promise till I noticed the barrel opened a little tighter and the primers were pretty flat. Need to back off that load a bit.
Started off in about the middle of the load data, 43.5gr AA4350, (where I usually do, on a barrel I have shot through before) and was still getting well over 3300fps. The only adjustment I mad to 3 different loads was the seating depth. The ones seated OUT THE FARTHEST got the highest velocity, an avg of 3372, with the low of 3367 and high of 3383. That's only a 16fps spread!
Funny thing, theses loads never stuck, go figure. All cases were trimmed, and lube removed from outside. Well I may not have it ready for dear season this year, but am still holding out hope. I'll use my 30-06 this year (maybe the 375 Win too).