• This Forum is for adults 18 years of age or over. By continuing to use this Forum you are confirming that you are 18 or older. No content shall be viewed by any person under 18 in California.

30 Nosler freebore?

Looking for a little info on reamer specs for the 30 Nosler. Haven't found much out there other than one print that has a .110 fb. which seems IMO to be vastly too short to handle the 190-210 grain bullets such as the Nosler AB and ABLR line for LR hunting. Borden Timberline Mag. with Wyatt Ultra mag well to take advantage of seating bullet out to an "advantageous" coal. Saami coal of 3.340" yields a bullet stuffed in pretty deep IMO. Comments/info appreciated. Eric in DL
 
my reamer has a .220 freebore. 215 hybrids, feeds from a wyatts box no problem. Throat it to .280 and it still feeds with 230s
 
The Nosler line of cases have virtually no room for long bullets. Its is the largest reason these new cartridges are not a big deal. They just look big. I will now quote David Tubb.


As usual the cartridge designers forget the one item which IMO is of utmost importance in long range shooting.
Do NOT seat the full diameter of the base of the projectile into or past the neck shoulder junction of the case.

The entire line of Noslers fail in this regard with the use of heavier weighted bullets.

A 300 or 325 WSM (Winchester short magnum brass) necked up to .338 will give velocities on par with what the new 33 Nosler does with even lesser amounts of powder and all while seating the bullet correctly in the case for maximum accuracy while keeping the OAL of the loaded round to 3.340″ (like the Noslers).

— Dtubb
 
Rather than quote Tubb, you should do your own research. Your both wrong. The Nosler cases are the best designed large magnum cases there is. The 28 Nolsler with 195 seated above the neck/shoulder junction fits in a wyatts box mag. I build a lot of them. The 30 Nosler with 230 hybrid seated about the neck/shoulder is even shorter yet and easily fits a wyatts box in a 700 action. The thing that makes these cases so well designed is the exact opposite of what Tubb said. Comparing the wsm case to the nosler case is laughable.
 
Last edited:
Rather than quote Tubb, you should do your own research. Your both wrong. The Nosler cases are the best designed large magnum cases there is. The 28 Nolsler with 195 seated above the neck/shoulder junction fits in a wyatts box mag. I build a lot of them. The 30 Nosler with 230 hybrid seated about the neck/shoulder is even shorter yet and easily fits a wyatts box in a 700 action. The thing that makes these cases so well designed is the exact opposite of what Tubb said. Comparing the wsm case to the nosler case is laughable.
Also.
Do NOT seat the full diameter of the base of the projectile into or past the neck shoulder junction of the case.
Thats BS. If the bullets doesnt have a large pressure ring, seating it past the neck/shoulder with effect nothing. If you have doughnut issue thats another issue all together and is easily dealt with.
And to think that you know more than David tub? The action you're talking about is a custom action with the extra long magazine. Not every rifle is set up that way.
 
Last edited:
I dont have to know more than Tubb for him to be wrong. And no, I am talking about a wyatts bdl box mag which is the most used box in any standard long action build now. Borden, Pierce, Stiller, Defiance all come cut for it, and its a 10 minute job on a Remington. The 30 with a 215 would feed in a regular stock rem box same as a 28 nosler with 180. A 30 nosler will push a 215 over 3100. Comparing that to a wsm case...? Only about a 300 fps difference.
 
I dont have to know more than Tubb for him to be wrong. And no, I am talking about a wyatts bdl box mag which is the most used box in any standard long action build now. Borden, Pierce, Stiller, Defiance all come cut for it, and its a 10 minute job on a Remington. The 30 with a 215 would feed in a regular stock rem box same as a 28 nosler with 180. A 30 nosler will push a 215 over 3100. Comparing that to a wsm case...? Only about a 300 fps difference.
Sorry, anyone who says David Tubb does not know what he is talking about has lost credibility. The Wyatts mag you are talking about is essentially an Ultramag box.
 
I'll take that as a compliment. I never knew I had credibility to loose :)

An ultra mag box has windows cut in the side. Its stock on a rem. 700 ultra mag rifle. The Nosler is based on an ultramag. The ultramag box is a case width thing, not a length thing, its the same length as every other 700 box. So no, Im not talking about an ultra mag box. I am talking about a wyatts extended box which is the most used magazine on a long action build today. If your not familiar with this box and the cartridges were discussing then I dont know what else to say.
 
Last edited:
The Nosler line of cases have virtually no room for long bullets. Its is the largest reason these new cartridges are not a big deal. They just look big. I will now quote David Tubb.


As usual the cartridge designers forget the one item which IMO is of utmost importance in long range shooting.
Do NOT seat the full diameter of the base of the projectile into or past the neck shoulder junction of the case.

The entire line of Noslers fail in this regard with the use of heavier weighted bullets.

A 300 or 325 WSM (Winchester short magnum brass) necked up to .338 will give velocities on par with what the new 33 Nosler does with even lesser amounts of powder and all while seating the bullet correctly in the case for maximum accuracy while keeping the OAL of the loaded round to 3.340″ (like the Noslers).

— Dtubb
The OP wanted a free bore for a 30, not a 338. There is a big difference between a 7mm, 30 or 338 in freebore and loaded length depending on bullets used. Matt
 
Thanks for the comments / info. I appreciate it greatly. As I suspected a FB of .200-.275 would work just perfect to seat the 190-215 grainers out to a "good length" in the 30 Nosler. Now need to locate such reamer/print. Eric in DL
 
The freebore for 200 class bullets should probably be in the range of 0.200 unless you wanted to shoot the 200-20X Bergers. They seat about .030 further out than the 200 Hybrid.

It matters not what the case looks like behind the neck. For the purposes of this discussion, the freebore essentially determines the distance from the mouth of the bullet to the point where the ogive contacts the lands, so for a given freebore the same bullet will will seat the same length of bearing surface into the neck be it a 308 or a 30-OMFG.

Using the Berger 200 Hybrid the "pretty darned close to perfect" freebore to seat the beginning of the boat tail about ½ way up the neck of a 308 is .205 or so, it would be the same for the Nosler. (note: that same freebore is on the verge of too long with the new Berger 200-20x)

In a case with a longish neck the measurement may tolerate a bit shorter FB. Other bullets may/will have different specs. I'd think that a .200 would be very close to the right answer though.

As for Wyatts box mags, they are pretty standard stuff these days. Opening up the feed port to accept long bullets is a standard practice, I had it done on my 7-08 to feed bullets seated to full length in an AICS pattern mag w/o the front plate. (short action loaded to 2.9## OAL)


I've always reasoned that the area behind the neck is for powder, not bullets.
 

Upgrades & Donations

This Forum's expenses are primarily paid by member contributions. You can upgrade your Forum membership in seconds. Gold and Silver members get unlimited FREE classifieds for one year. Gold members can upload custom avatars.


Click Upgrade Membership Button ABOVE to get Gold or Silver Status.

You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.


To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.

Forum statistics

Threads
166,299
Messages
2,216,237
Members
79,554
Latest member
GerSteve
Back
Top