resizing die won't resize
Quote from Reloader on June 2, 2010, 2:31 amI bought a new 550B and set it up for 9mm, .40 S&W, and .45ACP. I assembled the machine and set it up for each calaber. The .45 and the 9mm work perfectly. However, the .40 will not resize properly. It leaves the lower 1/4 of the case unsized.
I followed the set up instructions which said to raise the platform and screw the die down until it reaches the shellplate. Then lower the platform and insert an empty case into Station One. Then Raise the platform so the case is in the die, and tighten the lock ring. After resizing a shell I insert it into a shell guage and the lower 1/4 of the case has not been resized and will not fit. I am certain that it is not a bulge caused by excessive pressure because all the shellcases act the same way. I have tried it with 50 or so cases.
To trouble shoot the problem, I replaced the Dillon die with a Redding die (from my single state press) and set the die using the above technique. It worked perfectly and the shells resize correctly. I then put the Dillon die into my single stage RCBS press and it failed just as it had in the Dillon press. I took the die to the dealer where I bought it and he put it into a large press he had and was able to get it to work. It didn't at first and he had the same problem that I had. He tried to blame it on the shell and said that it was bulged, but I explained that it happens on all shells. It is not a bulge. The die is not resizing properly. However, he screwed the die down even more than was recommended and he was able to resize several cases. The shell case fit into the shell guage, but it fit tightly. It was not resized very well and could cause problems in my guns. He said that the directions were incorrect and that you have to screw the die to the shellplate and then screw it down some more. I returned home, feeling like a fool. When I got home I tried his new procedure and it still didn't work. I then screwed the die down in quarter turn increments, trying it each time, until the press could not complete it's downward stroke. No luck.
Then I reinserted my Redding die and it worked perfectly. I checked the shell case when it was in the Redding die and it was inserted just to the notch in the shellcase. This is the same amount of penetration I was able to get with the Dillon die.
Help. I have tried everything I can and am thinking that the only remaining answer would be a die that was not machined properly. Any ideas for me to try?
I bought a new 550B and set it up for 9mm, .40 S&W, and .45ACP. I assembled the machine and set it up for each calaber. The .45 and the 9mm work perfectly. However, the .40 will not resize properly. It leaves the lower 1/4 of the case unsized.
I followed the set up instructions which said to raise the platform and screw the die down until it reaches the shellplate. Then lower the platform and insert an empty case into Station One. Then Raise the platform so the case is in the die, and tighten the lock ring. After resizing a shell I insert it into a shell guage and the lower 1/4 of the case has not been resized and will not fit. I am certain that it is not a bulge caused by excessive pressure because all the shellcases act the same way. I have tried it with 50 or so cases.
To trouble shoot the problem, I replaced the Dillon die with a Redding die (from my single state press) and set the die using the above technique. It worked perfectly and the shells resize correctly. I then put the Dillon die into my single stage RCBS press and it failed just as it had in the Dillon press. I took the die to the dealer where I bought it and he put it into a large press he had and was able to get it to work. It didn't at first and he had the same problem that I had. He tried to blame it on the shell and said that it was bulged, but I explained that it happens on all shells. It is not a bulge. The die is not resizing properly. However, he screwed the die down even more than was recommended and he was able to resize several cases. The shell case fit into the shell guage, but it fit tightly. It was not resized very well and could cause problems in my guns. He said that the directions were incorrect and that you have to screw the die to the shellplate and then screw it down some more. I returned home, feeling like a fool. When I got home I tried his new procedure and it still didn't work. I then screwed the die down in quarter turn increments, trying it each time, until the press could not complete it's downward stroke. No luck.
Then I reinserted my Redding die and it worked perfectly. I checked the shell case when it was in the Redding die and it was inserted just to the notch in the shellcase. This is the same amount of penetration I was able to get with the Dillon die.
Help. I have tried everything I can and am thinking that the only remaining answer would be a die that was not machined properly. Any ideas for me to try?
Quote from Reloader on June 2, 2010, 2:53 pmThe inside of the carbide size ring at the top measures .417", +/-.0005".
You can use a pin gage to check this dimension. The primary problem with 40 S&W is this:
In recent years it has become very apparent that there exists a situation regarding some pistols chambered for the 40 S&W cartridge. Some of the pistols currently available to shooters may not provide complete support to the case when a cartridge is chambered.
The Sporting Arms and Ammunition Manufacturers Institute (SAAMI) has established a maximum average pressure for the 40 S&W of 35,000 psi. The loading data published by Accurate Arms was developed in our ballistic laboratory in accordance with SAAMI test methods and equipment and does not exceed this figure. This information is safe for use in firearms which provide complete support of the case. Failure to fully support the case with cartridges of such intensity may result in bulged cases, ruptured cases, separated case heads or other consequences which may result in damage to the firearm and/or injury or death to the shooter and/or bystanders. This can happen no matter whose propellant is used.
If you own a firearm chambered for the 40 S&W, we recommend you contact the manufacturer to determine if the case is fully supported, or have a competent gunsmith examine the firearm and determine the amount of support provided the case.
The inside of the carbide size ring at the top measures .417", +/-.0005".
You can use a pin gage to check this dimension. The primary problem with 40 S&W is this:
In recent years it has become very apparent that there exists a situation regarding some pistols chambered for the 40 S&W cartridge. Some of the pistols currently available to shooters may not provide complete support to the case when a cartridge is chambered.
The Sporting Arms and Ammunition Manufacturers Institute (SAAMI) has established a maximum average pressure for the 40 S&W of 35,000 psi. The loading data published by Accurate Arms was developed in our ballistic laboratory in accordance with SAAMI test methods and equipment and does not exceed this figure. This information is safe for use in firearms which provide complete support of the case. Failure to fully support the case with cartridges of such intensity may result in bulged cases, ruptured cases, separated case heads or other consequences which may result in damage to the firearm and/or injury or death to the shooter and/or bystanders. This can happen no matter whose propellant is used.
If you own a firearm chambered for the 40 S&W, we recommend you contact the manufacturer to determine if the case is fully supported, or have a competent gunsmith examine the firearm and determine the amount of support provided the case.
Quote from Reloader on June 5, 2010, 9:30 pmThe Glock and some other firearms do not support the case and it bulges. you need to buy the Redding Gr-x, it removes the bulge. I threw away many 40S&W cases because of bulge untill Redding developed this die.
s7
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The Glock and some other firearms do not support the case and it bulges. you need to buy the Redding Gr-x, it removes the bulge. I threw away many 40S&W cases because of bulge untill Redding developed this die.
s7
w