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Re: Less powder more velocity?
Yes. Effieciency. If you get too much in there and it doesnt burn, you slow down. Ever notice when you get closer to the top you start losing gains?
John
Yes. Effieciency. If you get too much in there and it doesnt burn, you slow down. Ever notice when you get closer to the top you start losing gains?
John
Re: Less powder more velocity?
Well, and youre probably near the top end I think (I dont load much 243) and youre only at .2 gr difference and that alone, with just one chrono reading, could give you less speed.
John
Well, and youre probably near the top end I think (I dont load much 243) and youre only at .2 gr difference and that alone, with just one chrono reading, could give you less speed.
John
Re: Less powder more velocity?
Ive seen this happen a few times. Last time was just a few weeks ago with a 7mm08 & RL17.
Ive seen this happen a few times. Last time was just a few weeks ago with a 7mm08 & RL17.
Re: Less powder more velocity?
Was the seating depth the same? if you seated deeper and the volume was decreased you can gain velocity also if you seat longer but you're in the lands( some people say jam) that can increase pressure and velocity as well hope this helps.
Was the seating depth the same? if you seated deeper and the volume was decreased you can gain velocity also if you seat longer but you're in the lands( some people say jam) that can increase pressure and velocity as well hope this helps.
Re: Less powder more velocity?
What do you use to weigh your powder?
How many rounds did you fire to draw this conclusion?
How long does a round sit in the chamber before you fire it? Are you consistent with this delay in firing?
What do you use to weigh your powder?
How many rounds did you fire to draw this conclusion?
How long does a round sit in the chamber before you fire it? Are you consistent with this delay in firing?
Re: Less powder more velocity?
I load 39.5 grains of IMR 4350 behind 100 gr bullets for whitetail.
larryj
I load 39.5 grains of IMR 4350 behind 100 gr bullets for whitetail.
larryj
Re: Less powder more velocity?
I had the same thing happen with my .308 and 155 grain Noslers . 46.5 grains of Varget produced more velocity than 47.0 but the 47.0 load was more accurate . I have a second batch ready to go test again and see how it works out on the second go round .
I had the same thing happen with my .308 and 155 grain Noslers . 46.5 grains of Varget produced more velocity than 47.0 but the 47.0 load was more accurate . I have a second batch ready to go test again and see how it works out on the second go round .
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