As title I have just done my first home loads using.
Sako 75 .243 1-10 twist using 95 gr Honady ssts Norma once fired brass (my own ) CCI primers Hogden Varget powder.
After loading 20 rounds in increments of .5 grains
1st 4 off 33 gr
2nd 4 off 33.5
3rd 4 off 34
4th 4 off 34.5
5th 4 off 35
Had these loads off Hogden site.
My first 4 were crap to say the least best a string of 4 measuring 2 inches
My second 4 were brilliant all 4 less than a five pence piece
My third four back to a 2 inch string
My fourth lot were worse a 3 inch group
My last lot were acceptable all 4 were well within an inch
Obviously the second lot were the best, but am I to expect this much variation just by going 0.5 gr every time.
Realy confused as I was not expecting that much differance any advice is most wellcome.