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300WM varmit loads?

Check with the bullet manufacture of any light bullet you plan to use. Most varmint bullets will not handle the high velocity the Weatherby or Winchester Mag, which ever one you have (300WM???), can produce. The rotational gravity at these high velocities will cause the bullet to sling it's self apart. You will see a gray puff in the air around 75 yards. You can probably get away with using the 125 Nosler Ballistic Tip because it is designed as a lite game "deer" bullet to operate for optimum game performance with impact velocities under 3000 fps. Run it faster than that like you can in a magnum and it will act like a varmint bullet on impacts over 3000 fps.
All the loading manuals will have load data for their bullets.
 
Check with the bullet manufacture of any light bullet you plan to use. Most varmint bullets will not handle the high velocity the Weatherby or Winchester Mag, which ever one you have (300WM???), can produce. The rotational gravity at these high velocities will cause the bullet to sling it's self apart. You will see a gray puff in the air around 75 yards. You can probably get away with using the 125 Nosler Ballistic Tip because it is designed as a lite game "deer" bullet to operate for optimum game performance with impact velocities under 3000 fps. Run it faster than that like you can in a magnum and it will act like a varmint bullet on impacts over 3000 fps.
All the loading manuals will have load data for their bullets.
sorry, 300 win mag.

I had thought varmit bullets might come apart, I wonder about non-varmit designed bullets?
 
Depending on your twist I beg to differ on this. My brother in law has a slow twist 300 wm build. He shoots light bullets FAST like a laser 115-120gr area, not exactly sure of his load. And he has no problem.. it can be done, but your barrel twist is the big factor here which is not mentioned.
 
shot 150 gr sierra FB out of 10 twist 30-338 around 3200 with h-4831, i would like to try R-26 might gain a little more the 150 gr were used on g-hogs never a quiver, maybe because there was not much left.
 
Sniper338 is right on the twist rate. If you try to sling light bullets in a 1/10 twist they will blow up. You need a 1/12 or slower to even consider it. I used to shoot 110-125 gr bullets out of a 300 weatherby (prairie dogging) and there is almost no such thing as a powder that will fully burn using such a light bullet, even in a 26" barrel. The blast was so overwhelming I eventually gave it up. There are functional specifications most people need in a varmint rig, none of which you will get with a 300 weatherby or 300WM. Now if you are looking to shoot a few bullets at a couple varmints, it can be done, but no man can wear one of those all day like they can a 20VT.
 
take a look at the Berger 155.5gr Fullbore Target. I have a 300WM and about 70gr of IMR 4350 gets me 3200fps. They will disassemble a Rockchuck out past 500 yards, as far as I have shot them. In my rifle that load will shoot just at 1/2 Inch at 100 yds.
 
Sierra 110gr HP and HRDY 110 Vmax's backed with 80gr of RL17 will yield 4000 fps +
if you don't have a 12 twist + barrel you can always reduce the load a couple grains at a time until they stop vaporizing.

Dean

PS: You don't have to use RL17 something with the same burn rate or close will work.
 
As in the video posted a 300 WSM is also a good option, just like my 300 WM it is a 30" 12 twist. It is not quite as potent as my 300WM but very respectable, and with 72 or 73 gr of Varget it is a 4000 fps load with the same Sierra and Horndy bullets, the 300WM is faster "well over 4000 fps" and the brass seems to last longer and easier to prep, and the added benefit of 5 in the mag oppose to 4 with the WSM. I also jump the lands 100 thou on both, I am sure that's what allows me to run the hotter loads that I chose to load.

Dean
 
My 300 RUM's with there 30" 17 Twist barrels "one Savage and one Remage" are like nothing else I have ever shot. 110 gr bullets backed up with 111gr of RL17 "don't you just love it more powder than bullet" I will never "not on a public forum anyways" admit what I am getting as far as FPS "most chrono's don't record that high" And yes they are accurate rifles even more than my ability. Lapua makes a 100gr 30 cal bullet also which send the numbers even higher. I am maxed out as far as case capacity at 111gr and with no hard bolt lift, or other signs of excessive pressure. I could go to a faster powder but have not yet tried. So yes 30 cals and varminting can be used in the same sentence.

Dean
 
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I've shot groundhogs with Imr4350 and Speer 110 gr SP with no problems. It tears the g hogs up pretty good too. Been a long time since I did that too. Accuracy was fairly decent also. This was out of a Ruger 77 back in the early 80's.
 

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