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30-378 WBY or Lazzeroni Warbird ?

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Old 01-01-2003, 07:34 PM
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30-378 WBY or Lazzeroni Warbird ?

Thinking of building a new rig in one of these two calibers with a 30" barrel and shoot the 168 grain bullets. I'll use either a rem 700 action or I may go with another PGW.

Anyway.....suggestions and opinions on these two calibers are welcome.

Thanks to all.
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Old 01-01-2003, 07:45 PM
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Re: 30-378 WBY or Lazzeroni Warbird ?

Also opionions on twist rate are appreciated!
Lazzeroni suggests 12 or 14? [img]images/icons/confused.gif[/img]
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Old 01-02-2003, 01:53 PM
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Re: 30-378 WBY or Lazzeroni Warbird ?

Those are really big cases for that bullet weight. I guess you have a big need for speed. How far are you planning on hunting with this rig?

If this is the only bullet weight you are going to use, 1 in 12 twist will be plenty.

I would suggest you look up data on cases like the RUM/reg 300Wby and compare to the Lazz and Wby. Chances are they is not that much difference in vel. This is simply due to the overbore nature of these big cases. They are even less effective when launching "lighter" bullets.

Balancing max. vel and accuracy may also be a little touchy with these cases. What powders are you planning on using?

Keep an eye on the throating too. Try and keep the throat short enough so that the bullets can be on or just off the lands and feed from your mag. The WBY freebore can make it more difficult to get an accurate rifle.

If nothing else, this rig should get some very high muzzle vel and shoot plenty flat. Sort of like 40gr Vmax in a 22/250.


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Old 01-02-2003, 02:21 PM
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Re: 30-378 WBY or Lazzeroni Warbird ?

I spoke to my gunsmith this morning. He said that the accuracy is not as good as my 7mm STW or the 338 lapua I am building. He said it is due to the extreme velocity....I sort of expected that.

I really don't have any need for this rig....but hunting season is basically over and I'm bored. Plus, I really wanted a fast long barrel rig.

If I can't shoot those 1/4" groups @ 100, I don't think I'll bother with this rig.

I'd love to rebarrel my 7mm STW to a longer barrel (currently 26" Krieger)but the barrel is virtually brand new.
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Old 01-02-2003, 02:40 PM
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Join Date: Nov 2002
Location: St. Louis
Posts: 189
Re: 30-378 WBY or Lazzeroni Warbird ?

Well, John, I'm so impressed with this 30 Wolf that I can't imagine going anywhere else.

There's a bunch of info on this site regarding it, so I won't rehash the details, but a superfast 30 cal on a 338 Lapua case might be just your ticket, seeing as you're gonna have a big investment in high-quality 338 Lapua brass anyhow...
STL. Principal Consultant and Managing Partner - Association of Bifurcated Tangential Ballistic Apologists, LLP.
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Old 01-03-2003, 10:45 AM
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Posts: 1,459
Re: 30-378 WBY or Lazzeroni Warbird ?

I don't think that accuracy has to be bad. You may just not have the fastest vel but a well assembled rig should shoot. If you look at the 30-378 factory loads and handloads, the 180gr bullet can leave at 3400fps and accuracy is excellent. The 165 will be 100 to 150fps faster. As long as twist is around 12, the bullets will not be overspun. I believe this is what causes erratic accuracy - the bullet spinning so fast that it is bending.

The barrel burner concept can work, but is it really necessary. Low BC bullets going fast don't give the same performance as a high BC bullet launched slower at long range.

Consider a 30 cal rig for the 240gr MK or a 338 rig for the 300gr MK. There is lots of info on these cases on this site. They work and work very well out past 1000yds.

A 240gr bullet at 3200fps is smoking...

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Old 01-04-2003, 12:20 AM
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Re: 30-378 WBY or Lazzeroni Warbird ?

Jerry, I'm actually waiting for my 338 Lapua. I plan on shooting the 300 Match King.

This is just a winter project I'm thinking about to get rid of some boredom.
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