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Length of .375-Caliber Bullets -- Query

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09 April 2005, 00:25
Russell E. Taylor
Length of .375-Caliber Bullets -- Query
Could someone please give me the lengths of these three bullets?

Nosler 260-grain BT
Barnes 270-grain TSX
Barnes 300-grain TSX

Thanks, folks.

Russ


The doing of unpleasant deeds calls for people of an unpleasant nature.

09 April 2005, 07:33
waxman
My Nosler 260 BT's have a length 1.381.
09 April 2005, 08:04
RIP
Russell,
My old non-bonded .375/260gr BT Nosler was 1.384" when I measured it. The .375/260gr Nosler Partition is 1.146". That long plastic tip do add some length to the Ballistic Tip.

I don't have any of the TSX yet in .375 (though I do have some .416 and .458 TSX's stocked and ready to load), but here are the old X-Bullet measures, just realize that the extra cannelures on the TSX's will make them longer than these (maybe 0.020" longer?):

Barnes XFB Cannelured:

.375/270gr: 1.345"
.375/300gr: 1.472"

For example consideration:

.458/500gr XFB Cannelured: 1.630"
.458/500gr TSX (5 cannelures): 1.650"

.416/400gr XFB Cannelured: 1.572"
.416/400gr TSX (5 cannelures): 1.592"

So my "guess" on the TSX's:
.375/270gr TSX: 1.365"
.375/300gr TSX: 1.492"

Until sumbuddy who know posts, that is a ball park ...
09 April 2005, 09:12
tsturm
Barnes 270-grain TSX = 1.370


09 April 2005, 10:02
elmo
Russ

The 300grn TSX are 1.490

Elmo
09 April 2005, 18:16
RIP
Thanx to sumbuddy:

.375/260gr BT: 1.38"
.375/270gr TSX: 1.37"
.375/300gr TSX: 1.49"

Should be exactly right to nearest 1/100th", allowing for a few thou difference in the tips from battering around in the boxes.
10 April 2005, 08:16
elmo
Russ and Rip

The Truth be told, about 25% of those 300's measured 1.494 bewildered

I thought that was kind of strange so I measured about half the box.

They were either 1.490.... or 1.494 for every fourth one +/-. None were 1.489, 1.491, 1.492, 1.493, or 1.495. The packaging is excellent with a good plastic box and tight foam inside the box.

Whaddayall think about that?

Elmo
10 April 2005, 08:27
RIP
Elmo,
That is a good puzzle. bewildered
Maybe they came from four different machines, and one of the machines was off by .004", didn't slam the form as hard on the final nose operation, whatever that might be? I dunno. Maybe four days different production and the fourth day was a Friday afternoon?bewildered

Well if the bullet weights are in tolerance then the little bit of nose shape difference won't matter.
10 April 2005, 08:33
elmo
Well if I wasn't such a stupid lazy bastard, I would have weighed 'em in the first place Roll Eyes

Stand by

Elmo
10 April 2005, 08:40
elmo
All right,here it is...


1.494" = 300.0 grns
1.490" = 299.7 grns

The plot thickens.... nut

Elmo
10 April 2005, 18:40
RIP
elmo,
That ain't bad. It is only 0.1% by weight, and the World Renowned GSC bullets claim to be +/- 0.25%.

Now you can sort your bullets by weight or length if you want to obsess about it, but I wouldn't. Go shoot'em into tiny groups without sorting. thumb
10 April 2005, 22:54
DB Bill
It isn't the length differences that will cause problems but rather if the ogives are different as this is what determines how close the bullet is to the lands.


DB Bill aka Bill George
13 April 2005, 23:58
Russell E. Taylor
Hey, folks, thanks for all the answers!

I like how the BTs shoot in mine, but... dang, they sure eat up a lot of powder space if you seat to the cannelure -- which I usually do for hunting rounds, followed by a crimp.

Russ


The doing of unpleasant deeds calls for people of an unpleasant nature.