Re: Lapua "Lock Base" Bullets?????
Yes, those are the Lapua Lockbase bullets. If they are the 170gr .308s the G1 bc is .498.
Yes, those are the Lapua Lockbase bullets. If they are the 170gr .308s the G1 bc is .498.
Re: Lapua "Lock Base" Bullets?????
Are they the 150 or 170 Lock Base?
I'm using 170 LB'S. With,
Lap brass
WW Large Magnum Primer
Varget Powder
44.2 grs---2760 FPS Group measured from outer edge to outer edge .740
Group was the same for the load below.
44-7 grs---2775 FPS, .740
c.o.a.l.---2.810
The futherest I shot was 600 metres, and showed good promise. At present I'm using 44.2 of Varget. At 15 metres above sea level it should stay supersonic to 900 metres.
Lapua load these to 2820 FPS, using VV550. But these are getting on the warm side, supersonic to 1000 M. This is a Double Base Powder.
If you decide to use this load START 1.5 grs below what I use. Work up in .2 grn increments.
Are they the 150 or 170 Lock Base?
I'm using 170 LB'S. With,
Lap brass
WW Large Magnum Primer
Varget Powder
44.2 grs---2760 FPS Group measured from outer edge to outer edge .740
Group was the same for the load below.
44-7 grs---2775 FPS, .740
c.o.a.l.---2.810
The futherest I shot was 600 metres, and showed good promise. At present I'm using 44.2 of Varget. At 15 metres above sea level it should stay supersonic to 900 metres.
Lapua load these to 2820 FPS, using VV550. But these are getting on the warm side, supersonic to 1000 M. This is a Double Base Powder.
If you decide to use this load START 1.5 grs below what I use. Work up in .2 grn increments.
