08-20-2018, 06:06 AM
More tested bullets in the Rem 700.
Now it is the Hornady 130gr ELD-Match
Gun: Rem 700 bolt gun, 20" Jury barrel 1:7,5 twist
Bullet, Hornady 130gr ELD-Match
Lapua brass
CCI400 primers
VV N140 powder
Magnetospeed Sporter
Have loaded up 11 loads of N140.
Started at 27,8gr and worked my up to 30,0gr in 0,2gr increments.
Each case inspected before and after each shot. Have waited ruffly 1,5 minute between each shot.
Cases looked good up to 29,8gr. No pressure signs until now.. There was now a big crater on the primer and from precious experience this is for me a indicator of high pressure.
I´ve got the 30,0gr load left, but did not shoot this one. 29,8gr is for me the MAX with this bullet and load.
This is the result from the first test:
[ATTACH=CONFIG]12522[/ATTACH]
There is a really nice node up in the 29,4gr. But this being very close to the MAX makes me look at the lower node.
Have selected the 28,3gr for the next test. I will wait and see what I can get from that and maybe look again at the 29,4gr. Not sure how the 29,4gr will react to warmer weather. At this day there was about +12 celcius. What will happens if the temperature gains to +20 celcius? I´ve now loaded this first ones at 0.63mm of jump (0.0248"). If i go closer to the lands, and make less compression of the powder, will this pressure get less, or more...?
Have loaded 10 rounds of 28,3gr to test for SD/ES.
Now it is the Hornady 130gr ELD-Match
Gun: Rem 700 bolt gun, 20" Jury barrel 1:7,5 twist
Bullet, Hornady 130gr ELD-Match
Lapua brass
CCI400 primers
VV N140 powder
Magnetospeed Sporter
Have loaded up 11 loads of N140.
Started at 27,8gr and worked my up to 30,0gr in 0,2gr increments.
Each case inspected before and after each shot. Have waited ruffly 1,5 minute between each shot.
Cases looked good up to 29,8gr. No pressure signs until now.. There was now a big crater on the primer and from precious experience this is for me a indicator of high pressure.
I´ve got the 30,0gr load left, but did not shoot this one. 29,8gr is for me the MAX with this bullet and load.
This is the result from the first test:
[ATTACH=CONFIG]12522[/ATTACH]
There is a really nice node up in the 29,4gr. But this being very close to the MAX makes me look at the lower node.
Have selected the 28,3gr for the next test. I will wait and see what I can get from that and maybe look again at the 29,4gr. Not sure how the 29,4gr will react to warmer weather. At this day there was about +12 celcius. What will happens if the temperature gains to +20 celcius? I´ve now loaded this first ones at 0.63mm of jump (0.0248"). If i go closer to the lands, and make less compression of the powder, will this pressure get less, or more...?
Have loaded 10 rounds of 28,3gr to test for SD/ES.