Thanks for getting in depth here. I'll try and answer your questions to the best of my knowledge, here goes.
I guess I just figured 5-10MPH wind wasn't that much to worry about especially since it wasn't a direct crosswind. It was blowing 5-10mph, from about oh 4-5 o'clock, when I did the ladder test and I got the .349" group with 3 different weights, so I just thought I had the load dialed in really good. Or in other words, I dont see how on 1 windy day it shot under .5" with 3 different weights, yet on a different windy day I"m getting 2" groups with the same weight of charges, doesn't make sense to me...I know what my problem is, I"ll tell ya later...
Usually I bring a differnt shell to shoot through the barrel to compensate for the CBS, I did that with the ladder test and 1 of the 200 yard tests. I just forgot to on the 1st 52.8g load as you can see by me indicating it on the target. Really, I think the CBS would only effect load#1, as by the time I shoot the first bullet on load #1, the barrels already warm, so how does that have anything to do with loads 2 and 3?? I usually wait 2-3 minutes between each shot, so the other groups should not be effected by it, in other words, I think anyways. Not sure If I explained that right, but I know what I"m talking about.
I"ve shot plenty of groups with this factory barreled/rifle to know its capable of .5 MOA. ITs done it plenty of times at 100 yards. Heck its even shot me a .043" group at 100 yards for 3 shots. Best 3 shot group I've ever shot in my life. Double checked the laod again and it shot .250" the next time out, so I know the rifles more then accurate when I do my part or the load does it's.
Cronograph is a cheap ass Crony. Yah it aint the best, but I think its better then nothing...As I put in .5g more powder, the velocity's went up how they should I think doing the ladder. Its not like they were sporatic or all over the place.
The reason I went with 53g as the middle was because 52.5, 53, and 53.5g during the ladder, all went into a .349" group. According to the crony, the velocity for the 52.5g load should be 3332, the 53g load at 3347, and the 53.5g load at 3374. I thought that a 40fps spread over 1grain was pretty good. Especially considering it put them 3 shots into that .349" group.
Actually now that I look at the crono data a little closer, putting groups aside, 53.5-54.5 showed only a spread of 25fps over 1 grain. 53.5g was 3374, 54g was 3387 and 54.5g was 3400.
Anyways, I'll tell ya what I really think. I expect to much out of factory rifles. Its hard for me to grasp that concept when I see all these custom rifles
shooting these small groups all the time. Thats my problem...I cant just be satisfied with MOA from a factory sporter rifle, ha ha. Even though I guess its good, just not what I"m really looking for.
I"ll load up some more groups at 53.5-54.5 and see what happens.