30-378

[RyanG]

Hello all,

I am really trying to find a load for my Weatherby 30-378. I have been trying to get Berger 210 VLD's to shoot. I cannot get a group thats better than 2" with any of my loads. I have tried Rutembo, BMG50 and H1000. The H1000 gave me the best results at just over an inch. I was loading those with 99 grains but from what I have seen that is too hot by a whole grain.....

Any help would be great!!!!!!!! my rifle is a Weatherby Mark V that is totally stock. I think that the barrel is 28 inches.....

Please HELP I have an elk hunt coming up..... Should I try 200 grain Accubonds instead of the Bergers.....

Ryan

 

[nitrousmudbogger]

I was using the 168 seirra match king and used Ramshot "Magnum" 107 grains was the best for me. It produced the best groups in my gun. I would say 7828 is a number 2. They worked the best in my 338-378 KK too

 

[Broz]

Questions.

1: is this an accumark?

2: How far is in your comfort zone for a shot?

3: to what OAL were you seating the 210 Bergers?

Jeff

 

[RyanG]

Jeff,

Yes my rifle is a accumark. I have had it for just over a year and have only put about 20 rounds through it so far. I was setting my COAL at: 3.800.....

I dont see a shot further than 400 but I am comfortable out to 600.... if I can find a load. If not I will be using my 7mm Rem Mag....

Do I need to bed the action? Will that make any real difference....

Thanks for all your help....

Ryan

 

[Broz]

OK Ryan, I have had a few Accumarks in 30-378 as well as a custom too. All shot the 210 Bergers well. First off if you get it to shoot 3 shot group of 1" or less you are in the ball park for a factory rifle. a 1" group at 100 yards theoretically is equal to a 6" group ay 600 yards. So that should be good for your elk. Your load of 99 gr of H-1000 should be good and the seating depth is in the ball park too. So lets do this. Have you cleaned it lately? 30-378s can foul pretty quick especially if you have shot any barnes bullets since last cleaned. Also , while shooting groups only shoot a 3 shot group and then you need to wait at least 1/2 hr to let it cool before you shoot again. 99 gr of powder builds heat fast. Last, I would suggest you try shooting groups at 300 yards with that best load you have with the H-1000. It can sometimes take a ways for the long VLD's to stabilize and you could be over looking a good load.

Also, yes bedding the barrel lug will help your 30-378 acumark. If you pull it out of the stock I bet you will see where it is gauling on the aluminum rail from movement under recoil.

Jeff

 

[RyanG]

Good morning,
I just cleaned it yesterday. It only had 9 rounds through it before. I had loaded up 4 different loads. One group of three using BMG50 at 110 grains, three at 110.5 and three at 111.0.... with the last group I used the H1000 they shot the best. After each group of three which took about 5 min to shoot all three I would change the targets and let the barrel cool for almost a half hour. So I wasnt letting it get too hot. I was trying to keep it cool as possible.

The weather here today is less than good... think I will go fishing.... but anyway will do what you said about loading up the H1000 using the Bergers. I will let you know what I come up with....

Thank you all so much for your input.

Ryan

 

[RyanG]

Ok...

New problem.... well not really a huge deal but.... I loaded up some rounds this afternoon and noticed that they will not feed from the magazine. Is this just an issue with the berger bullet being too sharp....

 

[Broz]

Could need the feed lips on the mag box adjusted. But I have never had this problem. When you say they won't feed, do you mean they are getting caught in the mag box because they are to long? Or are the pointa of the bullets hitting on the feed ramp of the barrel?

Jeff

 

[RyanG]

They are hitting the feed ramp and sticking..... Even when I shorten them..... huh?

 

[Broz]

They are hitting the feed ramp and sticking..... Even when I shorten them..... huh?

Mag box lips probably need adjusted a bit to allow the top bullet to angle up a bit in the front as it is fed. But with out seeing it in person I hate to advise you as what to do here. Mine have always fed even as long as 3.820"

Anymore I shoot with one in the tube and one or two on the ground next to the gun. I haven't loaded a mag box for hunting in a long time. My experience with LRH is I have plenty of time to load another if needed. I can see single shots in my future for sure.

Jeff

 

[cwinner]

I have been shooting this exact same rifle for about three years now. I would suggest you try shooting the Barnes Tripple Shock Bullet. We have been using it exclusively and taken everything in the state of NM with it over the past three years. Performance is awsome!! My son shot an Orxy through both shoulders at 650yds and the bullet exited.

Here is my best laod.....180gr TSX, 110gr Retumbo, Fed 215M primers and I load them as long as the action will allow. Velocity avg's 3,450 here at 5000ft.


The load on the powder can calls for up to 113gr of Retumbo, but it's too hot for my rifle, stick with the 110grains.

Agree on the shooting at diatances, my rifle groups 1-1/4 inches +\- at 100 but will shoot inside 4" at 600yds with this load.

Good Luck!!

 

[RyanG]

Thank you guys for all your input! I am really glad to see that Im not the only one getting the 1"+ groups at 100 yards. I will load up some more rounds this weekend and get them on paper at 400+ as soon as the weather clears a little.... Trying to snow here tonight....

Again Thank you SO much!

Ryan

 

[4xforfun]

First off, you are dealling with 100 gr of powder. Don't mess with .5 grain incruments. At least untill you get near your final tune. It seems to me that there is roughly a 10 gr diff between min and max loads in the 30-378's that I have loaded for....starting loads to well past book.....so you have just scratched the surface with the couple of loads you tried. I would work with a min of 1 gr incruments.

Also, just load em to fit in the mag....Factory WBY's have LOTS of free bore...you will never get to the lands.

Just my .02. Like I said, I have only loaded for two of them, so take it for what it is worth.

 

[Broz]

First off, you are dealling with 100 gr of powder. Don't mess with .5 grain incruments. At least untill you get near your final tune. It seems to me that there is roughly a 10 gr diff between min and max loads in the 30-378's that I have loaded for....starting loads to well past book.....so you have just scratched the surface with the couple of loads you tried. I would work with a min of 1 gr incruments.

Also, just load em to fit in the mag....Factory WBY's have LOTS of free bore...you will never get to the lands.

Just my .02. Like I said, I have only loaded for two of them, so take it for what it is worth.

Good pont on the charge with H-1000. But I have seen Retumbo in the 30-378 go from ok to stuck bolt in 1 gr.

As for seating depth,
True. and that is what we are doing here. The longest I have been able to cycle in a Wby 30-378 box is 3.820" Thus I usually start at 3.800" like we did here.

Jeff