Re: best load for 300 RUM
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Bill, while that bullet out of a 300RUM might work ok on deer, it doesn't do anything well. It blows up at close range, and does not have the BC for longe range. Your drop isn't that much flatter at close range and is alot worse at longe range. Its offers no advantage in wind drift. In short while you can make it work, as long as everything is perfect, it sucks at long range compared to heavier, higher BC bullets in everything including, drop, wind drift, retained velocity, and terminal ballistics. However I am all for a man using whatever WORKS FOR HIM. So if it works, and you like it; use it.
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Charles, I agree on the wind drift. The 125 can't hold a candle to heavier bullets on this issue.
I couldn't disagree more on the bullet holding up @ longrange. Here is a breif comparison of the 125 BT vs. a 180 BT.
125 @ 3940 (actual drop) 180 @ 3300 (actual drop)
200 yds -4.5 200 yds -6.95
400 yds -22.8 400 yds -30.42
600 yds -58.95 600 yds -76.19
800 yds -123.22 800 yds -151.46
1000yds -229.13 1000yds -267.84
As you can see the 125 hold up much better down range. It doesn't have the energy to take larger game @ these distances but will have no problem cleanly killing deer here in central OK, and it doesn't break your shoulder. I want to load some of the Barnes 165 XBT's for larger game.
On the expansion factor: I know the bullet is going to to explode at close range. I'm shooting deer that avg about 125 lbs. A BIG buck in my area is 175 lbs. I don't care if the bullet exits. If you put 3500 to 4000 lbs of energy ALL into an animal of that size, it isn't going anywhere