Post by Bullshop on Jan 13, 2018 14:41:57 GMT -7
I have an early period Jap type 44 calvary carbine in 6.5 jap. The bore is dark with rifling still present, however; any 6.5 bullet simply slides completely through barrel. Your bullets sized at .269 should be the correct fit for this rifle. Do you know if my standard RCBS 6.5 jap seat die will seat your bullets into the neck of FL resized Norma 6.5 jap brass without any difficulty? ~~~~~~~~~~~~~~~~~~
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The bullet seating die itself should not be a problem. A potential problem area may be in your sizing die. If the neck expander ball in your die is intended to size case necks for a tight fit on .264” diameter jacketed bullets it may have case necks too tight for our larger diameter bullets. You may need a case neck expander ball that is more compatible with the larger diameter of our cast bullets. At times this condition can defeat the purpose of starting with a larger diameter bullet by the overly tight case neck acting as a sizer and reducing the diameter of the cast bullet and also to deforming the case neck .
If this condition exists the best remedy is to install a neck expander ball that is more compatible with the bullet diameter being used, usually about .001” smaller than bullet diameter.
If you can not find one offered by your die manufacturer the most simple solution is to start with a case neck expander ball of the next larger caliber in this case for the 270 and reduce its diameter. To do this no more elaborate tools are needed than a power drill and a file and a micrometer. Work very slowly and check diameter often. The process will take only a few minutes.
This will correct any problems created by too tight a case neck for bullet diameter but creates another minor problem with case neck expander ball extraction back through the sized case neck. The very simple solution that I use to remedy this is to simply lube inside case necks before sizing. This is done to all cases necks before sizing by using a per caliber cleaning type brush treated with case lube.
The system I use was purchased from Midway USA and is manufactured by Frankford Arsenal and is very convenient but not absolutely necessary as you can do the same job by simply using a (short hand gun) cleaning rod. I like the kit from Frankford arsenal because it contains all caliber brushes and a holder platform and since almost everything I load uses larger diameter cast bullets than their jacketed counter part I use it for all my loading.
Best to you and you quest !
The Bullshop
~~~~~~~~~~~~~
The bullet seating die itself should not be a problem. A potential problem area may be in your sizing die. If the neck expander ball in your die is intended to size case necks for a tight fit on .264” diameter jacketed bullets it may have case necks too tight for our larger diameter bullets. You may need a case neck expander ball that is more compatible with the larger diameter of our cast bullets. At times this condition can defeat the purpose of starting with a larger diameter bullet by the overly tight case neck acting as a sizer and reducing the diameter of the cast bullet and also to deforming the case neck .
If this condition exists the best remedy is to install a neck expander ball that is more compatible with the bullet diameter being used, usually about .001” smaller than bullet diameter.
If you can not find one offered by your die manufacturer the most simple solution is to start with a case neck expander ball of the next larger caliber in this case for the 270 and reduce its diameter. To do this no more elaborate tools are needed than a power drill and a file and a micrometer. Work very slowly and check diameter often. The process will take only a few minutes.
This will correct any problems created by too tight a case neck for bullet diameter but creates another minor problem with case neck expander ball extraction back through the sized case neck. The very simple solution that I use to remedy this is to simply lube inside case necks before sizing. This is done to all cases necks before sizing by using a per caliber cleaning type brush treated with case lube.
The system I use was purchased from Midway USA and is manufactured by Frankford Arsenal and is very convenient but not absolutely necessary as you can do the same job by simply using a (short hand gun) cleaning rod. I like the kit from Frankford arsenal because it contains all caliber brushes and a holder platform and since almost everything I load uses larger diameter cast bullets than their jacketed counter part I use it for all my loading.
Best to you and you quest !
The Bullshop