German 300 Wby Mk V Loads

BWANA

BWANA

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I think I read somewhere that the German Wby has a different twist rate than the newer Jap & US guns and preffers heavier bullets(180+).
Mine dosen't seem to care for 150 or 165's.
Anybody got any accurate 150 or 165 loads ?
 
I think mine has a 1/12 twist as opposed to the newer gun's 1/10.
I have been trying IMR 4831 with poor results.I just noticed a can of IMR 4320 on my bench and loaded up a test batch of 150 & 165 grainers with 70 grains of same.
We'll see what these shoot like.
 
CanadianBDX said:
My family, all my friends, and many customers shoot .300 weatherby rifles, also in Colt Sauer, same calibre, The best all around load, and I've done a lot of testing, a LOT, is a 180 grian bullet, here's why, Speer makes a hotcore, semi-roundnose, and it's good for the first one up because where I hunt the bears also hunt, and I've hand my brushes. Then you load 180 GrandSlam Speer hotcor's for max. expansion, without over expansion, as many bullets will go right through. I've shot many an elk even as close as 25 yards, and I don't get an exit, all energy delivered. Then I use a real long, 180 Boatail bullet for the log shots, and make sure it has soft lead core, or has a plastic tip to enhanse the expansion, thus more energy delivered, when the bullet slows down at 500 yards.

By doing this, your point of aim never changes, if you go light then heavy bullet, with a big recoil gun, your heavy bullets hit high in close, as they are slower exiting the barrel. And loads, yes I've done almost them all.

MRP is good, but due to availability, I now stick soly with H-4831, and load about 83 grains, it's warm, but you have to work up a load as every gun has different drag and pressure from the internal balistic point of view. Also load the bullet as long as you can, and still have it feed the clip, more accurage, as weatherby has a bit more freebore to keep pressures down.

Fed 215 primes are the best. You wouldn't beleive the work my gun has done, and never misses a beat!

SO, 180's all the way, the longer bullet is more accurate,
Don't use IMR 4831, you will oveload, and ruin brass, it's hotter, and has to go down to about 79 grains, or less. Also H-1000 powder is good, the fuller the case the better, and the safer, expecially if you are shooting down hill, the full case is a consistent burn every time.

Lots of tips here, hope they help.

Kurt
Click to expand...

After reading your post,I can't help but notice that you are making a large number of assumptions that have not been proven.
Let's start with you assuming that one specific 180gr bullet will be accurate in all 300wby rifles.The fact is that while the 180gr bullet that you recommend,may be accurate in your rifle,it may or may not be accurate in other rifles.You then assume that you can simply switch 180gr bullets without a change in point of aim.In many rifles, simply changing bullet styles while maintaining the same bullet weight will cause a significant change in point of impact even at 100 yards.You then state that the longer 180gr bullet will be more accurate.Again this may be true with some rifles,but with others the 165gr bullets may be more accurate.
Then you advise not to use imr4831 because you might produce too much pressure and reduce brass life.The truth is that if you know how to work up loads properly,this will not happen with any powder.If you don't know how to work up loads properly,you could cause high pressure with any powder.You then state that h-1000 is a better powder to use when in fact ,you have no way of knowing if the posters rifle will even shoot accurately with h-1000.I do understand that you want to help out by relating your experiences,but assuming that all rifles will perform equally with specific loads is an incorrect assumtion as most experienced handloaders have already discovered for themselves.
 
stubblejumper, Point taken, I'm not making many assumptions, but you are correct, not every rifle is the same out of the box. I take it you have lots of experience with weatherby's to advise. See, the heavier bullet does better, and I' have several german, a colt, and two Jap weatherbys, loading since the early 1970's back when you could buy gunpowder in 35 lb kegs, and and my father wildcated a 378 x8mm weatherby about 30 years before they came into production or anything like it. He tested at the speer labs in Lewiston idaho, and well, I have experience to say what I did, and you are correct, not every gun will shoot the same even if it's the same plant that made it. Heavier bullets work best, and 200's even better, for most part, but you loose out in selection.

As for IMR, it came out after 4831, and was hotter and the publish data didn't show it was different. It does today. This is back when you had no internet, and there was very few books on loading, just field and stream, and you learned from experience. IMR is fine, but you have to start a lot lighter, I work up loads, I suggested to the auther to work his up, and in general, Weatherby's shoot best when they are cranked up, because of the big case, and other things.


in any event, I'm knew to the post, and I think it was about my 3rd post. Point taken, keep it simple.

Tnx. Normally I'm very careful about giving out load info, but this has worked so well for so many years, with many of my friends, and family and I that I just had to share it and say whay I chose to go the route. I may have written it like I knew best, isntead of in a neutral sence. OK, yep, will learn, I don't do chat, but this is a learning thing for me. Kurt.
 
I myself have owned three mark V weatherby rifles(one with an aftermarket barrel) and have developed loads for a couple more.I was able to get good groups with some 180gr bullets ,but some were very poor.Bullet style and construction seems to be more important than bullet weight.However one rifle much preferred certain 165gr bullets over any other bullet.Having developed loads for several dozen rifles over the years,I have learned that each gun is an individual and has it's own preferences and the only way to find it's preferences is by trial and error.Many of the so called favorite loads for one rifle performed very poorly in other rifles.As to imr 4831,I have used a fair bit of it in several cartridges with very good results with some rifles,and not so good results with others..
 
CanadianBDX said:
stubblejumper, Point taken, I'm not making many assumptions, but you are correct, not every rifle is the same out of the box. I take it you have lots of experience with weatherby's to advise. See, the heavier bullet does better, and I' have several german, a colt, and two Jap weatherbys, loading since the early 1970's back when you could buy gunpowder in 35 lb kegs, and and my father wildcated a 378 x8mm weatherby about 30 years before they came into production or anything like it. He tested at the speer labs in Lewiston idaho, and well, I have experience to say what I did, and you are correct, not every gun will shoot the same even if it's the same plant that made it. Heavier bullets work best, and 200's even better, for most part, but you loose out in selection.

As for IMR, it came out after 4831, and was hotter and the publish data didn't show it was different. It does today. This is back when you had no internet, and there was very few books on loading, just field and stream, and you learned from experience. IMR is fine, but you have to start a lot lighter, I work up loads, I suggested to the auther to work his up, and in general, Weatherby's shoot best when they are cranked up, because of the big case, and other things.


in any event, I'm knew to the post, and I think it was about my 3rd post. Point taken, keep it simple.

Tnx. Normally I'm very careful about giving out load info, but this has worked so well for so many years, with many of my friends, and family and I that I just had to share it and say whay I chose to go the route. I may have written it like I knew best, isntead of in a neutral sence. OK, yep, will learn, I don't do chat, but this is a learning thing for me. Kurt.
Click to expand...

Great post there!

Imagine if today you wanted to go to speer's plant and work up a few loads!! I guess your grandfarther must have known the folks there!
 
stubblejumper, Well said, If I can add one thing, I've always said that most factory ammo is designed to work well in all guns, but a handload can be developed to work EVEN BETTER in your own gun, and often excellent, if the gun will do it!.

Kat
 
Thanks for all the info Guys.
As I got 2 Deer in Muzzle Season and then was unable to go out in Rifle Season,,, I didn't do much more load development but I'm sure I'll get this Weatherby shooting as beautifully as she looks with all the info you provided.

Thanks again,
Andy
 
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