Arian
Well-Known Member
Hey, so yet another paranoid noob post by me. My tarvas load is on hold due to component shortage but i got my hands on a kilo of n130 from someone who lost their license (for free) and a couple dosen of lapua 8g fmj and lapua 6.5g hpbt fmj.
how they shoot will ofcourse be a matter of ladder testing but i am a bit puzzled by the COL, I assume the listed COL is going to be safe but when i measure them to my lands they vary quite a bit.
the COL in the recipes is 79.8mm for both bullets, this would have the 6.5g kissing the lands and the 8g 2mm off the lands. Does that sound right? the person who gave me my reloading stuff said to just reform a case enough to hold on to a bullet lightly, chamber it to push the bullet into the case, remove it and back it up about 0.5mm-1mm to get a good starting seating depth for any bullet.
i assume messing with depth could also overpressure my load?
how they shoot will ofcourse be a matter of ladder testing but i am a bit puzzled by the COL, I assume the listed COL is going to be safe but when i measure them to my lands they vary quite a bit.
the COL in the recipes is 79.8mm for both bullets, this would have the 6.5g kissing the lands and the 8g 2mm off the lands. Does that sound right? the person who gave me my reloading stuff said to just reform a case enough to hold on to a bullet lightly, chamber it to push the bullet into the case, remove it and back it up about 0.5mm-1mm to get a good starting seating depth for any bullet.
i assume messing with depth could also overpressure my load?