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The Handloaders Bench > Metallic cartridge reloading > Reloading for rifles > Seating a Hornady bullet with a Cannelure

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Seating a Hornady bullet with a Cannelure
 Moderated by: Slingshot, Rockydog, klallen, DesertMarine, -6
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 Posted: Thu Feb 7th, 2013 09:54 PM
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strangms
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I have a question, I was loading some 7.7 Japanese using some trail boss with a reduced load. I'm using a Hornady  150 gr sp interlock bullet in .312.

The OAL in my manuals for a 150 gr bullet is  3.050.

When using this oal the cannelure is right at the case mouth, making some of the bullets loose.

Instead of crimping, Can  I seat the bullets below or above the cannelure with no problems?

I have used Hornady bullets with cannelure  before in 8mm and 32 WS and this has not been a issue.

Thanks

Strangms



 Posted: Thu Feb 7th, 2013 10:08 PM
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ultramag
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It would be fine to seat above and below the cannelure as long as the new O.A.L doesn't cause issues. If seating deeper pressure needs to be taken into account. With a reduced TB load I'd say pressure isn't an issue in this case. Of course if seating out farther be sure your not into the rifling and the rounds fit the magazine/function in the gun etc.

Last edited on Thu Feb 7th, 2013 10:09 PM by ultramag



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 Posted: Thu Feb 7th, 2013 10:50 PM
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strangms
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ultramag,
Thanks for your help. I was thinking that it would be OK, but better to be safe, then sorry.

I normally use Serria bullets, but because of the Panic buying they seem to go faster, so I though I would try some of the Hornady.

In 2010 I had Heart Surgery with 4 bypasses, so I have been playing around with the reduced loads using Trail Boss so I could shoot my Winchester 94 in 32 WS without the “Kick”.

I had really good results with it, so I thought I would try it in my K98 and Type 99.

strangms



 Posted: Fri Feb 8th, 2013 01:52 AM
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runfiverun
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they shouldn't be loose in the neck.
you did get 311 or 312 diameter bullets and not 308 right?
if you did and they are loose something else is wrong.
like the cases need annealed,or the expander ball is too big.

i generally have the canellure sticking out of my milsurp rifles simply because their throat is so long they will take waaay past the longest oal the book shows.
but are limited by the magazine.



 Posted: Fri Feb 8th, 2013 03:39 AM
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strangms
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They are 311, I will check the inside of the neck of the cases and see what they measure.

strangms



 Posted: Fri Feb 8th, 2013 07:54 PM
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Rory McCanuck
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I'd agree, it sounds like there is something awry with your neck tension.

Those Hornadys are good bullets, but beware of different bullet lengths.
I've had a variation of 0.015" base to tip length in one box. Using a seating plug to measure
base to ogive length however, there was less than 0.002" difference.



 Posted: Fri Feb 8th, 2013 11:24 PM
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williamwaco
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strangms wrote: I have a question, I was loading some 7.7 Japanese using some trail boss with a reduced load. I'm using a Hornady  150 gr sp interlock bullet in .312.

The OAL in my manuals for a 150 gr bullet is  3.050.

When using this oal the cannelure is right at the case mouth, making some of the bullets loose.

Instead of crimping, Can  I seat the bullets below or above the cannelure with no problems?

I have used Hornady bullets with cannelure  before in 8mm and 32 WS and this has not been a issue.

Thanks

Strangms


This should not happen. Something else is wrong.

I have never loaded that caliber but I suspect:

Expander button too large.
Sizing die neck too large.
Bullets too small.
Case necks too thin.

In that order.










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 Posted: Fri Feb 8th, 2013 11:30 PM
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strangms
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I think I know what the problem is, but still need to check it.

Will post more when I find out.

strangms



 Posted: Sat Feb 9th, 2013 02:22 AM
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ultramag
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ultramag wrote:
It would be fine to seat above and below the cannelure as long as the new O.A.L doesn't cause issues. If seating deeper pressure needs to be taken into account. With a reduced TB load I'd say pressure isn't an issue in this case. Of course if seating out farther be sure your not into the rifling and the rounds fit the magazine/function in the gun etc.

Strangms, I guess I should apologize. I'd been up about 24 hours yesterday afternoon when I answered this post and it didn't sink in you actually had loose fitting bullets in your case necks. I stand by everything else, but I guess I missed the main issue you were having. :foot:



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 Posted: Sat Feb 9th, 2013 03:09 AM
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strangms
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ultramag, No you answered my main question about if I could seat the bullet below or above the cannelure.

Some of the other posts told me that I had another problem that I didn't realize.

After going back to my manual and doing some reading, I think I know what I did wrong, but I want to check it out tomorrow after work to be sure.
I appreciate everyone help !!

strangms



 Posted: Sun Feb 10th, 2013 06:50 PM
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strangms
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OK, I think I know what I did wrong.

I use from time to time I use a Lee Universal Depriming and Decapping Die.
I use this for military brass mostly, but sometimes I will use it on non-military brass.
After checking some of the cases of the 7.7, I feel sure that I use this to deprime the 7.7 and then didn’t size the brass before I started to load them.

I find that more and more as I get older, (turned 60 last week) that I need to make notes if it is going to be sometime before I finish loading brass, or just wait on de-priming them till I’m ready to load them.

I appreciate your Help Guys,

strangms



 Posted: Sun Feb 10th, 2013 07:45 PM
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Rory McCanuck
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Whew, glad it was as easy as that.
I tend to leave a note on a small piece of paper in the brass container to let
me know just what has been done t them.
Of course, if I don't find the note, I'm lost :lol:



 Posted: Thu Mar 28th, 2013 07:30 AM
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Mrbluegrassfiddler
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I have loaded Jap 7.7 since 1979... for a few years. The bullets I used for loading were not cannelured.

HOWEVER....Two considerations are (1) Length to Spec or (2) Crimp at cannelure.

So long as you are not over the spec length of the assembled ammo, no problem. If you are a bit short, that should also not be a problem.

Same problem encountered with reloading 32 long pistol ammo.
Using a wadcutter with no cannelure, I will go to full length 1.260 inches. However, I just got in some Hornady bullets, 32 cal 85 gr cannelured.

If I set the bullet dept to the spec at 1.260 inches, the cannelure is above the rim of the brass by about 0.06 inches. If I set the bullet height just at the cannelure, my assembled ammo length is going to be short.  However, using a 32 cal revolver, the length is not all that big an issue. So, for my preference, I will set the bullet dept to the cannelure and crimp at that point, which results in a somewhat shorter ammo length than the spec length.

If you agree, please let me know. If you disagree, please make a target out of fiddle and shoot it ( humor ).



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