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Author Topic: blowby with 2002 goex  (Read 664 times)

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Offline snakebit

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blowby with 2002 goex
« on: September 14, 2003, 03:34:44 AM »
I'm trying to work up a load with new powder 2002 goex 2f. I'm shooting a 45-70 with WW cases.The first shot in a clean barrel the case comes out clean. the rest fo the cases in the 10 shot string have blowby. I have used 72gr thru 77gr. Do I need more powder to get rid of the blowby? The cases seal with my old cartridge grade powder.
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Offline John Traveler

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case blow-by
« Reply #1 on: September 14, 2003, 06:37:25 AM »
Before you go to another brand of powder, try switching primers.

WW or magnum rifle primers should make a difference in how clean your load burns AND reduce blowby.

John
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John Traveler

Offline EDG

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blowby with 2002 goex
« Reply #2 on: September 14, 2003, 11:54:14 AM »
Try annealing a few cases say about .5 to .7 inches down. This may be needed if your cases have been reloaded many times.
If you have never done this you have to protect the case head.  
Ed
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Offline Omaha Poke

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blowby with 2002 goex
« Reply #3 on: September 15, 2003, 08:34:14 AM »
Once the cases are fire formed to the chamber in this rifle, don't use them in another rifle, but keep them separated just for this rifle.  I had the same problem with new cases in my Ballard #4 in .40-65 after full length sizing the new cases.  Once fire formed and then just neck sized, the problem dissapeared.  Hope this helps, Omaha
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Randy Ruwe

Offline Lead pot

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blowby with 2002 goex
« Reply #4 on: September 29, 2003, 03:36:15 PM »
snakebit.

Let me ask.

Do you clean off the bullet lube from your case after seating the bullet?

Do use a blow tube? if so does the blow tube fit your intire chamber like your cartdridge case? if not the moisture and lube will keep the case from sealing the chamber properly.

Are your cases to long for the chamber?
How in the world are you getting that much powder in the .45-70?are you using a light bullet?Mabe you have the powder so compressed that your blowing most of it unburned out the barrel.

I burn at least 50 lbs of Goex a year with out that problem in all of my .40 and .45 caliber rifles.
 Lp.
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Offline fifty50seventy

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50 lbs/year - good grief!
« Reply #5 on: October 09, 2003, 05:00:23 PM »
You are one shooting son of a gun to burn 50 lbs!  It's funny, but I don't even have a chamber end to speak of and I  don't get blowby.  Plus, like an idiot I oild my chamber with mobile 1 until told it wasn't a good idea. Sorry I don't have any ideas of how to help.
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50-70

Offline Lead pot

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blowby with 2002 goex
« Reply #6 on: October 11, 2003, 03:02:27 AM »
fifty50seventy.

Well I guess I cant say that I burn it all in the rifles,I do dump some of it on the floor :)
In the new Shiloh I got last June I,m on the third box of primers I use in that rifle only.I'm retired so I have, and take a lot of shooting time,But keeping the lead pot hot gets to be a bummer  :roll:
Shooting four different calibers and expermenting with loads, the powder dont last long.
There is a drawback to shooting all of that black powder, that saltpeter that gets inhaled might have a bad effect :roll: .

Lp.
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Dont go were the path leads,go were there is no path and leave a trail.
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