Power up or down in Kingston?

[Moe]

For us maritimers going to the nats we have heard of power factor going up and going down. So what do we need to do. I load with 700X and others going up with me load with win231. Do we need to bump up our powder or bump down our powder? I will post this as well in the reloading fourm. Basicly what power factor would you load hear in NB for the nats?

Thanks guys

Moe

 

[omen]

Well, my PF went down when I came over to Halifax last year, so using that (single) data point, you shouldn't need to power up coming this direction...

 

[viper7]

I just shot in the Ont provincials a while back having flown up from Halifax and there was no drastic difference. If you have a reasonable margin above, you should be fine.



231 over montana 180s

 

[zazmonster]

Moe:
At the Provincials in 2002, at least 6 shooters who were shooting Standard,
using 180 gr Montana Gold, didn't make Major.
Winchester Ball Powders are temperature sensitive.Velocities are up and down.
You should check the Winchester Website re # 231.
Maximum load for a 180 is 5.0 gr., PSI 32,900 which is quite high.
Powder factor is 170.
#231 is fine if your shooting 40 S&W,180's in Production.
The load can be reduced from 5.0 down to the starting load of 4.1.
You should consider using WSF if you use Winchester Ball Powders.