best load for 300 RUM

[robertjay53]

Help me get started I want to load 200 and 220 gr Matchkings only help me with a start. Thanks Bob Percifield [img]/ubbthreads/images/graemlins/laugh.gif[/img]

[tdv75098]

And if you have data, what is the best load for a Barnes 180 gr. TSX in the 300 RUM?

[bailey1474]

I just got a 300 RUM and the only load I have worked up so far is for a moly coated 125 grain Nosler BT. 104 grains of RL 22 w/Fed gm215m primers. Avg. velocity of 3937 fps. Murder on our small whitetails. I am looking at loading some Barnes 165 gr. XBT's for larger game at longer ranges. If anyone has any experience with these bullets their input would be appreciated. [img]/ubbthreads/images/graemlins/grin.gif[/img]

[Charles A]

220gr MK OAL as long as your throat will allow. Start at 86gr of retumbo and work up. 210(or 215) Fedarel match primer.


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.

[sure shot]

Hear are a few loads that have worked for me. All of them produced half inch groups at 100yd and are 1.5gr to 3.0gr BELOW MAX. Firearm is a Stock Remmy 700 Sendero SF 26' bbl with trigger adjustment only. Loupy 3x9 VXIII scope,rings and base. All loads were shot over a Crony Alpha master.

Bullet: 220gr MK
Case: RP
Powder: IMR 7828 86gr
Primer: Rem Mag
Seat: As long as your mag will allow. unless you single shot it. No sine of pressure
3046 FPS

Bullet: 200gr Accubond
Case: RP
Powder: R22 85gr or 93gr of R25
Primer: Rem Mag
Seat: As long as your mag will allow. unless you single shot it. No sine of pressure.
3130 FPS

Bullet: 200gr Accubond
Case: RP
Powder: Retumbo 94gr
Primer: Rem Mag
Seat: As long as your mag will allow. unless you single shot it. No sine of pressure.
3188 FPS

I will be doing more testing with the 220 MK with Retumbo and r25 soon. Rob what make of firearm are you shooting? Good luck.

[robertjay53]

Thankyou TommyB

[bailey1474]

[ QUOTE ]

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.

[/ QUOTE ]

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