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Sectioned Partitions #15694486 01/23/21
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Teeder Offline OP
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Ok, so I'm bored.

This isn't a question for the gunwriters, but I thought it may be of some interest.
Awhile back I sent an email to Nosler asking for info on where the partition was located in 7mm bullets and if it changed for the different weights. They told me that info wasn't available, so out comes the hacksaw. 😁

[Linked Image]

Left to right:
7mm -150 grn
7mm -160 grn
7mm - 175 grn
.308 - 200 grn
.338 - 210 grn

A couple thoughts:
The partition definitely moves forward on the 160 from the 150, then stays the same for the 175. The jacket on the 210 is by far thicker than the others and I could really tell while cutting it! I thought the partition on the 200 grn would be further forward based on what I've heard on here.
The 150 and 210 are newly bought and current production. The others were bought on here and are from older boxes and may not be current. I have no idea if they change often.

These are the only partitions I have, but I'd be happy to cut more if someone wants to send me some. 😁

BP-B2

Re: Sectioned Partitions [Re: Teeder] #15694495 01/23/21
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jwp475 Online Content
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I can't get the images to open



I got banned on another web site for a debate that happened on this site. That's a first
Re: Sectioned Partitions [Re: Teeder] #15694517 01/23/21
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[Linked Image]

Re: Sectioned Partitions [Re: Teeder] #15694578 01/23/21
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Teeder Offline OP
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Thanks! It never seems to work well when I try from my phone.

Re: Sectioned Partitions [Re: Teeder] #15694757 01/23/21
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DBoston Offline
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Thanks, I always dig sectioned bullets. I have an assorted collection of Partitions going back to the old screw machine ones. it would take me awhile to round them up, but if you want to PM me an address I can send them as I find them. I also might (not sure) that I have first second and third generation Ballistic Tips that might make an interesting comparison.I can label and send them as they are unearthed out of the catacombs of the man cave.

IC-A

Re: Sectioned Partitions [Re: DBoston] #15694785 01/23/21
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Teeder Offline OP
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Pm sent.

Re: Sectioned Partitions [Re: Teeder] #15694813 01/23/21
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PaulBarnard Online Content
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I enjoy seeing stuff like that. Thanks for your effort.

Re: Sectioned Partitions [Re: Whttail_in_MT] #15695180 01/23/21
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metricman Offline
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thank you for those.
jacket thickness on 338, 210 grain is impressive!


vires,fortitudo,vigilantia
Re: Sectioned Partitions [Re: metricman] #15695264 01/23/21
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Teeder Offline OP
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Originally Posted by metricman
thank you for those.
jacket thickness on 338, 210 grain is impressive!


Absolutely! Worth building a rifle around. Oh wait, that's what my .338-06 is for! 😁

Re: Sectioned Partitions [Re: Teeder] #15695285 01/23/21
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Thanks for providing info and pics. I am thinking about going to the 210 Partition for a 338-06 I gave my grandson. I pretty much been using some flavor of a Barnes X since the late 80's and prior to that our .338's and 30-06 rifles all used a Partition. But, the Nosler Partition is never a "wrong" choice and may be the best "all around" big game bullet ever made in my opinion.

For years I heard the 210 Partition had a bit thicker jacket as the bullet is typically driven faster, then I heard it didn't and so on. One of the problems and I even had this with Barnes was if you called them, the answer to your question some times varied depending on who you spoke with.

I called Speer one time and asked about the jacket thickness and recommended minimum impact velocity velocity for their .358 caliber 220 grain Flat Nosed Hot-Cor bullet. I wanted to load some up for the Big Bore .356 my wife stole from me cause she thinks its cute. Any way who ever I got at Speer said the jacket thickness was propriety information and did not have a minimum recommended impact velocity.

I am always interested in intelligent bullet talk.

IC-B

Re: Sectioned Partitions [Re: Teeder] #15695288 01/23/21
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szihn Offline
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^
^
^
^
Teeder I did EXACTLY THAT a while back, and I "made my 338-06 around the Nosler 210 Partition."
I shot 200 grain Speers for my practice bullet and used the Noslers to kill things. Works great.

Last edited by szihn; 01/23/21.
Re: Sectioned Partitions [Re: Teeder] #15695402 01/23/21
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Teeder Offline OP
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👍

I know it's not supposed to be a good test, but the only bullet that out penetrated the 210 PT's in milk jugs for me was a 185 ttsx out of the .338-06.

That 200 Speer is my bullet of choice for whitetails if I'm not using a 7mm-08.

Re: Sectioned Partitions [Re: Teeder] #15695903 01/23/21
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ldmay375 Offline
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Thanks for the photo / information.

Re: Sectioned Partitions [Re: Whttail_in_MT] #15695958 01/23/21
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Nice, seeing that sectioned bullet builds extra confidence in my pre-64 model 70 JES rebore booting the 210's out at 2800 over H-380, have to be a tough little customer.


MOLON-LABE you commie vaginas!

If this Presidential election is stolen, Pull Up, Get Out Of Debt, Circle Your Wagons, DONT FEED THE MACHINE!
Re: Sectioned Partitions [Re: Teeder] #15696053 01/23/21
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Not intended as a criticism, I'm just curious as to how you cut them and are you sure you have a profile at 1/2 the nominal diameter for all bullets.



Mathew 22: 37-39

Happy escapee from NY

Re: Sectioned Partitions [Re: Teeder] #15696292 01/23/21
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Teeder Offline OP
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I cut with the side of the blade as close to full diameter as possible. If anything, the smaller bullets are shown with a slightly larger jacket thickness.
I measure schitt for a living, so pay attention to things like that.
Thanks for your concern.

Re: Sectioned Partitions [Re: Teeder] #15698079 01/24/21
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Charlie_Sisk Online Content
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I too have sectioned a lot of bullets. You find some interesting things sometimes. In reference to Partitions, when I fired them into the BulletTestTube, the expansion and penetration agreed with what I saw in the jacket differences.
I have said for years, and keep saying it. If your intention is to put meat on the table, a 338 Win mag with a 225 Partition is about as good as it gets. Assuming non dangerous game.
Charlie


The data and opinions contained in these posts are the results of experiences with my equipment. NO CONCLUSIONS SHOULD BE DRAWN FROM ANY DATA PRESENTED, DO NOT, UNDER ANY CIRCUMSTANCES, ATTEMPT TO REPLICATE THESE RESULTSj
Re: Sectioned Partitions [Re: metricman] #15699004 01/24/21
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Originally Posted by metricman
thank you for those.
jacket thickness on 338, 210 grain is impressive!


I’ve killed a bunch of elk, deer and antelope at 340/338 velocities. Ive alway been impressed at how it would penetrate deeply on elk even at range, but still open up on the ribs of an antelope. Out of several dozen elk, I can only think of one instance where it did not exit. It was on a big bull shot through the shoulders at 400+ yards. On lung shots, it would leave racquet ball sized holes out to 550 yards. The beauty of the bullet is i could count on great penetration and expansion from up close to farther than most folks have any business shooting unwounded game.

Re: Sectioned Partitions [Re: Teeder] #15699011 01/24/21
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Brad Offline
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Kevin, for a long time the 338 WM (22” bbl’d SS M70) was my elk rifle, stoked with 210 NP’s at around 2,925 fps. It’s a peas and carrots combo on elk (and anything else). I never saw the need for more bullet than the 210.


“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery
Re: Sectioned Partitions [Re: Teeder] #15699555 01/24/21
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Teeder,

It's hard to explain this without using my hands, but.......it can appear the partition is forward on heavier bullets than lighter bullets of the same caliber, but proportionally they can be in the same position from one weight to the other.. A heavier bullet is longer, but proportional to it's length it has the same amount of lead in the front and rear halves.

II have sectioned all the 7mm bullets that you have pictured, and have seen the same thing. The partition of the 160g is obviously further forward compared to the 150g.

Have never sectioned a 338 cal 210g bullet though, and the extra thick jacket is interesting!


Casey

Not being married to any particular political party sure makes it a lot easier to look at the world more objectively...
Having said that, MAGA.
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