Can someone help me out
Lapua brass, VV N150 powder, Fed. 210m 155 scenar
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Lapua brass, VV N150 powder, Fed. 210m 155 scenar
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- Thread starter KOOutdoors
- Start date
Re: Help needed in load development
Just a few questions.. What cartridge are you reloading for? Is it a factory or custom chambering? What length barrel and twist does your rifle have?
Just a few questions.. What cartridge are you reloading for? Is it a factory or custom chambering? What length barrel and twist does your rifle have?
Re: Help needed in load development
308 win. FN A5M. 1:12. 24" barrel
308 win. FN A5M. 1:12. 24" barrel
Re: Help needed in load development
The twist rate you have is good with 185gr or less bullets, so that shouldn't be an issue if you're using 155's. I prefer CCI primers but to each his own. I've never used that powder, I've heard it's a bit temp sensitive.
The twist rate you have is good with 185gr or less bullets, so that shouldn't be an issue if you're using 155's. I prefer CCI primers but to each his own. I've never used that powder, I've heard it's a bit temp sensitive.
Re: Help needed in load development
I have a bit of a problem with the data.
Top image: 44.4 is low-right, 44.8 is high-right, 45.2 is low right again. I guess I am surprised that the barrel goes through a whole node in 0.8 gr. All three seem to shoot well. Just wondering is a cross hair target (+) would have worked better than a paint spot. At 2.860 in a match chamber you could be into the lands.
Bottom image: 45.2 seems to be the better load. At 2.807 these are probably well off the lands, and are probably working at lower max pressures.
A) Do you KNOW that 2.860 is into of off of the lands?
B) Do you know how far 2.807 is off the lands?
C) Were there any pressure sign DIFFERENCES between the 2.860 and 2.807 loadings?
I have a bit of a problem with the data.
Top image: 44.4 is low-right, 44.8 is high-right, 45.2 is low right again. I guess I am surprised that the barrel goes through a whole node in 0.8 gr. All three seem to shoot well. Just wondering is a cross hair target (+) would have worked better than a paint spot. At 2.860 in a match chamber you could be into the lands.
Bottom image: 45.2 seems to be the better load. At 2.807 these are probably well off the lands, and are probably working at lower max pressures.
A) Do you KNOW that 2.860 is into of off of the lands?
B) Do you know how far 2.807 is off the lands?
C) Were there any pressure sign DIFFERENCES between the 2.860 and 2.807 loadings?
Re: Help needed in load development
No pressure differences noted. To the lands is 2.885
No pressure differences noted. To the lands is 2.885
