Author Topic: 300 win to 300 H&H (Read 975 times)

msorenso · « **on:** September 02, 2005, 04:44:38 AM »

Has anyone chambered or changed the chamber of a 300 win to 300 H&H? Is it possible. Thinking of doing so wit a winchester model 70? Thank You!

EsoxLucius · « **Reply #1 on:** September 02, 2005, 05:07:26 AM »

It will not work as the 300 H&H is more tapered than the 300 Win Mag. You would also have to be sure the Win M70 could accommodate the longer 300 H&H round. If so, then you could make a 300 H&H Improved which would be something like an 8mm Rem Mag necked down to .308". There is probably a named wildcat cartridge that matches such a configuration, 300 Ackley Long or 300 Ackley Magnum? Or there is the 300 Weatherby Magnum.

Lawdog · « **Reply #2 on:** September 02, 2005, 08:46:22 AM »

EsoxLucius,

Quote

If so, then you could make a 300 H&H Improved which would be something like an 8mm Rem Mag necked down to .308".

Already been done and readily available. Its called the .300 Weatherby Magnum. The best/most versatile .30 caliber magnum made. How many other .30 caliber factory magnum cartridges let you use another should the need arise? Lawdog

Jimi · « **Reply #3 on:** September 02, 2005, 11:43:06 AM »

I second the Lawdog. My M70 in .300 Wby. Mag. (originally chambered in H&H) is hand's down my favorite rifle... and I can shoot H&H ammo through it.

Smokin Joe · « **Reply #4 on:** September 02, 2005, 04:03:47 PM »

No go on the 300 Win to 300 H&H. You'll need to rebarrel for it. Why would you want to go downhill in performance?
If you want to go to the 300 Weatherby, you'll need a Long Action rifle; it won't work with the standard length action the 300 Win was developed for.

msorenso · « **Reply #5 on:** September 03, 2005, 05:34:30 AM »

I want a 300 h&h and can't find one. I already have a 300 win and 300 rem ultra mag. So that why I want to know can I make this change over if so what do i need to do. If all I have to do is change the barrel than so be it. So can this work? Thank You!

RayO · « **Reply #6 on:** September 04, 2005, 03:42:01 AM »

Yes, it will work.Rebarreling and a long magazine box should do it.

EsoxLucius · « **Reply #7 on:** September 05, 2005, 11:11:07 AM »

Quote

Or there is the 300 Weatherby Magnum.

I think I said that.

msorenso · « **Reply #8 on:** September 10, 2005, 09:36:18 AM »

Make sure I got this correct. If I bought a 300 weatherby I can also shoot 300 h&h though it as well?

Graybeard · « **Reply #9 on:** September 10, 2005, 09:53:49 AM »

Quote

Make sure I got this correct. If I bought a 300 weatherby I can also shoot 300 h&h though it as well?

NO, not really. Yeah I suppose you "could" do it to fireform the cases to the Weatherby configuration. But performance would be reduced a good deal and accuracy would be who knows what.

If you want a .300 H&H get one. BUT be sure the Winchester action is long enough FIRST. I think it is but am not sure.

Lawdog · « **Reply #10 on:** September 10, 2005, 02:01:48 PM »

msorenso,

Quote

Make sure I got this correct. If I bought a 300 weatherby I can also shoot 300 h&h though it as well?

You sure can and without that much loss in performance or accuracy. I have been doing it ever since 1963 and know many, many other .300 Weatherby shooters that do the same thing. I also shoot .375 H&H ammo in my .375 Weatherby Magnum. Same thing as shooting other standard cartridges through Ackley Improved versions. I own both .300 H&H and .300 Weatherby and .375 H&H and .375 Weatherby and what tiny loss in performance that is lost no game animal is ever going to know about it. Being able to use H&H ammo is one of the advantages that you get with the .300 & .375 Weatherbys. Also saves on brass costs too. Lawdog

crow_feather · « **Reply #11 on:** September 10, 2005, 10:08:06 PM »

I've been sticking my hand in an alligator's mouth since 1986 but I know that sooner or later they're gonna call me lefty.

I have seen those "you can shoot X in Y" info posters before and I did not see the two that were mentioned. I would have to believe that there is a reason why.

I am not an expert on internal ballistics. I just have a fear about chewing on the end of a bolt that has been driven through my cheek bone.

C F

msorenso · « **Reply #12 on:** September 11, 2005, 02:57:01 AM »

THANKS GUYS, ANYONE ELSE PLEASE COMMENT!

Jimi · « **Reply #13 on:** September 12, 2005, 07:10:35 AM »

Nothing new to add... just seconding Lawdog's assertion. I shoot .300H&H ammo quite accurately out of my .300 Weatherby. Of course you can forgt the idea about reloading those H&H casings as they will have expanded to fit the more shouldered Weatherby chambering. But it does not affect bullet performance in any significant way.

msorenso · « **Reply #14 on:** September 12, 2005, 12:44:58 PM »

That is good to know. Thanks for the info.