Difference in compression.

[powderburner]

the vertical was about the same, The wind was tougher today but my hold was a lot more consistant today ,and I had my sight setting.
at 300 you have to take your head off the stock to ty to find the bullet strike , . the load shot 12 min lower than my standard load so I was shooting over the berm for awhile , spotting for ones self up close is the pits, but so far it is running about 2 min or less at 300 . the load appears good but there are some things I aint happy about yet,However,the extra 60 tho compression stopped the paper stuck on the bases.. it seems to be lot hotter powder in large cases , been using it in the weenie gun and the 44 with not near the differences that are showing with the big case,