300 WM, 180 g vs 200 g. What do you gain or lose?

In my Opinion the 200gr bullet is the best choice for 30 Cals with 06 cases or bigger. Pushing the 200gr in a 06 @ 2600-2650fps with good BC AND SD is a great performer.....same can be said with the 300 Magnums.

Hey Douglas I would have thought that the 300 Weatherby would be able to do better than that? Im working with some loads and my 325WSM is showing a lot of promise that it can obtain 3100 fps with a 200gr pill......and 2900+ with a 220gr....these of coarse are charges reaching near Max.
 
In my Opinion the 200gr bullet is the best choice for 30 Cals with 06 cases or bigger. Pushing the 200gr in a 06 @ 2600-2650fps with good BC AND SD is a great performer.....same can be said with the 300 Magnums.

Hey Douglas I would have thought that the 300 Weatherby would be able to do better than that? Im working with some loads and my 325WSM is showing a lot of promise that it can obtain 3100 fps with a 200gr pill......and 2900+ with a 220gr....these of coarse are charges reaching near Max.


They will do better than that in the Wby, but if I post my actual chronographed velocities people call me a liar, or gun torturer, or just plain crazy............that's why I put the little "+" after the accepted velocity range, to designate the possibilities and where I go with them.;);):):):)
 
They will do better than that in the Wby, but if I post my actual chronographed velocities people call me a liar, or gun torturer, or just plain crazy............that's why I put the little "+" after the accepted velocity range, to designate the possibilities and where I go with them.;);):):):)

I know - I must be lilly-livered as I only get 3050 with a 200gr Partition out of a 24" barrelled .300 Wby. Still seems to get the job done though!
 
I am looking fwd to trying some 200gr reloads in my weatherby. Always shot 180's in my 300wsm. I used 200Gr Trophy Bonded Bear Claws in my 300 WM and everything was DRT. Only shot Whitetails and Muleys with the 200gr 300WM.
For the Weatherby guys were you able to get factory ballistics out of your reloads. I heard they are tough to get.
 
I've used IMR 7828 in several .300 Wby's with 200gr Partition and they are consistently around 3050 fps over an Oehler 35P. Weatherby claims 3060fps with their factory loads using the same bullet. I have never used their factory loads so I can't say if their claims are accurate.

So short answer is "yes", you can quite easily match their 200gr factory load.
 
I use RL 25 with 200 Parts and Accubonds and easily exceed Weatherbys claimed velocity by more than 100 fps in a 24" Rem 700. I know this load is safe because I have used it in Africa at over 50 C with no problems, no bolwn primers and only a slight increase in bolt lift resistance.

Here's a photo of the chronograph tape and group that she shoots........



 
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The difference between them is really splitting hairs. Trajectory is so close, especially since the vast...vast majority of shots are going to be close range....is nothing.

Really the 300wm is all about the perfect balance of payload, trajectory and recoil. It is the upper limit, and sometimes over that limit of most peoples recoil tolerance. Most often you are going to compare all of those against one of the big 7mm's. Why stop with the 180's with the .308 bore. You are really giving up one of the advantages over the 7's that stop at about 175 ( yes there are now specialty bullets as high as 190...but specialty bullets). The 300 mags carry the mail, let them. Chrony readings over or under 3000, stupid numbers from the 300 Wea really isnt going to matter to game in 95% of situations. The real comparison is to the smaller bores, and non magnums.

My vote between them would go with the 200 partition. Anything larger and you are giving up too much in velocity. At that point step up to a Wea or Rum, or go .338.
 
I loaded a 200 grain Grand Slam for years and had nothing but positive results. Typically, that 200 grain bullet (given a similar shape) will hold energy out further. When the 200 grain Accubond came along, I figured it was about the perfect combo for North American game.
 
I use RL 25 with 200 Parts and Accubonds and easily exceed Weatherbys claimed velocity by more than 100 fps in a 24" Rem 700. I know this load is safe because I have used it in Africa at over 50 C with no problems, no bolwn primers and only a slight increase in bolt lift resistance.

Here's a photo of the chronograph tape and group that she shoots........

I think it is important to note that your COAL is 3.95" vs SAAMI max of 3.56". That gives you an approximate 9% increase in net case capacity with the 200gr Accubond. This is excellent if your magazine box and chamber will allow such an OAL. I have a feeling that in your case this didn't happen by accident.
 
Was brought up to understand the reason for a magnum is to drive heavy for cal. bullets at the same speed (+ a bit) and if that's not your thinking then don't get the mag. I like 200 gr. in my 300 w/ 26 inch barrel.
 
Was brought up to understand the reason for a magnum is to drive heavy for cal. bullets at the same speed (+ a bit) and if that's not your thinking then don't get the mag. I like 200 gr. in my 300 w/ 26 inch barrel.

Roy Weatherby would disagree with you.
 
I think it is important to note that your COAL is 3.95" vs SAAMI max of 3.56". That gives you an approximate 9% increase in net case capacity with the 200gr Accubond. This is excellent if your magazine box and chamber will allow such an OAL. I have a feeling that in your case this didn't happen by accident.

Nope 1899, the rifle is heavily modified in order to allow me to seat out to the lands, bolt throw has been lengthened and magazine has been lengthened to 4" and Sako bottom metal has been used and adapted to allow the lengthening of everything by this much.........
 
Nope 1899, the rifle is heavily modified in order to allow me to seat out to the lands, bolt throw has been lengthened and magazine has been lengthened to 4" and Sako bottom metal has been used and adapted to allow the lengthening of everything by this much.........

Things work out when a fellow knows what he wants!
 
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