Rounding up to the nearest grain my run out was 221-232 grains ball park for about 80 pieces 19 pieces that where 234-239 I even had one weirdo that was 241 grains I was using my ball anvil mic and they had some really weird neck wall thicknesses, one had12thous on one side to 18 thous on the other just for example.
I have been seeing norma and this weird atlas brand at the range when I was building this gun but it was from a very small sample of people I have talked too and I’ve seen Hornady pop up also
Yeah that RWS seems to be a favorite of a lot of people on the forms, heavier cases that produce the same pressure with less powder and getting about the same velocity. If your interested I’ve attached a picture of the rifle below.
Hardness of the brass is a major issue with the Winchester, I went to size it and it took all the lube to get it to run through the FL sizing die, I plan to salt bath annealing all 100 cases afterI fire form them. there were some pieces .004-005thous wider then SAAMI spec. I’m too babied by lapua brass. you just check for length then neck size and roll. My father always praise Winchester for their quality in there brass but it does seem there brass is not the same as it was for my father in the 80’s - 90’s. Hopefully I will get some good brass in February and hit the range in March when she opens back up, I had to drive two hours just to go break my barrel in at a 100 yard range.
I normally only drive that far to shoot at the longer ranges I’m lucky enough to have a ODNR range just about 15 mins away but it closes 1st and reopens 3/1 but it poked some good holes in the paper, if it was not for the 5th shot flying a little to the left I would had a .50 group with factory ammo to brag about (black hills 190 which is restamped Winchester but it mich better then my bagged brass I bought) but my 175smk shot fairly nice with the light charge of H4350(65 grains). I was getting .50-.750 5 shot groups while doing the single shot and clean break in method. I have a super long throat for 220smk and the 240smk which is what I guessed caused the flyer in the black hills I shot because I had nothing like that in my hand loads. I’m know of on the fence for Norma , RWS and atlas brand in Kentucky, maybe I will just buy a sample 50 count bag and try them all . Here just my best target which was my 175smk break in load on it first 5 shot string , I will post my 20 dots once I write my notes on the paper and it interesting to see the groups change with the barrel breaking (which some people will argue does exist but you can see the shots become more consistent even during the single shot break in.)(I decide to hold the picture until have it all ready to go
