VV N550 | N150 + 167gr Lapua Scenar L
- Thread starter M16LR.50
- Start date
Thanks. I went up to 45.5gr with no pressure signs... I was a bit apprehensive going higher because it was the first ever set of handloads I've done. What COAL should I stick to as I try various loads? I started with 2.795"
COAL is determined by magazine (if you want to use it) and chamber throat.
Make a round of 2.850 and close the bolt on it. If it comes out with no rifling marks, use that length in your rifle. If it has rifling marks on the bullet, seat another one at 2.825 and chamber it. If it has marks, put it aside and try 2.810. When you find the step that does not have marks, use that setting, and re-seat the ones you put aside.
Make a round of 2.850 and close the bolt on it. If it comes out with no rifling marks, use that length in your rifle. If it has rifling marks on the bullet, seat another one at 2.825 and chamber it. If it has marks, put it aside and try 2.810. When you find the step that does not have marks, use that setting, and re-seat the ones you put aside.
Load 47 gr with the bullet so long it gets rifling marks all around it.
And load 5 of each in 10 thou increments shorter.
My rifle likes 20 thou off the rifling. My son's works best touching.
Yours? Find out.
And load 5 of each in 10 thou increments shorter.
My rifle likes 20 thou off the rifling. My son's works best touching.
Yours? Find out.
I loaded: 2.95, 2.98, 3.00, 3.05, 3.12 grams and the COAL is 71.74mm... Ill edit the post with grain/inch conversions... I saw pressure signs at 3.12.
Grains: 45.5, 45.9, 46.3, 47.1, 48.1 @ 2.82 inches...
My magazine may not allow a longer oal
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Thanks... I actually have the hardcopy book... I'm going to try a shorter OAL and see if anything is more accurate. I'm very new to reloading but I didn't expect the results to be so bad... Is there anything else that I need to consider outside oal and charge weight ?
