Update!!!!!
Well I just got back from the range today and have a question, first off I have only been reloading for a couple of months and still have a ton to learn.
I have a Savage 10 FLP with a 24" bbl and a 1 in 10" twist
I have been reloading in BH brass trimmed to 2.005" and followed all the case prep, I then charged all with 43.8gns of IMR 4895 and used a Fed 210 primer along with a H3037 Hornady bullet from Wideners, this load has done well in my workup (started off at 40.5 and worked up to 46.5) found what I thought was the "sweet" spot at 43.8, actually 43.6 and 44.0 did just as well so I picked the middle
I was pleased with this load until some High Power guys suggested I seat to the cannelure as this would yield better results so I made up some rounds starting off at 2.740"(Ctr of cannelure) -2.800' going up .010 at a time and off to the range.
I had heard that there would be minimal differences in accuracy and I had accepted that, I was grouping okay but my groups had opened up and then I have (5) rounds left of varying OAL (2) at 2.740" (1) at 2.800 and (2) at 2.770
and this is how I finished my day with (5) rounds of what I would call a wide spread of OAL
Can someone explain to me how this happened, I wish i could shoot like this all the time.
I still have quite a few of the 3037's but thought I would switch over to a 150 SMK as these bullets are not perfect but don't look bad and are not match