Berdan primer removal...

There is a much easier way. I have the RCBS tool and it works but it is so SLOW.

What I have done is made up a punch out of a piece of brass with an appropriate size drift pin made out of either and allen wrench or drill bit stem.

Drill a hole into the end of a 12cm piece of rod. Brass is the easiest but steel will work. Plastic has to much flex. Make the hole one size smaller than the pin you will be using as a decapping punch.

I use a 1/4 in (96mm) piece of rod. It will fit down anything 6.5mm or more. Make sure the drift pin and rod are contoured so it fits easily into the case mouth and the pin fits easily into one of the flash holes.

Then, just use an appropriate base to place the butt of the case onto and punch out the Berdan primer with an appropriate size hammer.

You may have to wiggle the punch a bit to get it into one of the holes but it usually goes very quickly. I can do a couple of hundred in less than an hour. The RCBS tool is much slower.
 
I never had much luck with the hydraulic method using a tight fitting rod and a hammer.
It always seemed to glance off at a slight angle and spill out the mouth, without freeing the cap.

But I tried a variation on the water method, using the correct reloading die and shell holder to support the case.

--REMOVE THE DECAPPING PIN FIRST. This is kind of important...
--lube and resize the case as usual, except the primer remains.
--Fill case with water, and slam it hard up into the sizing die again. THE CASE MUST STILL BE LUBED! This is also kind of important...
--Expect water to flood out the bottom. My press has a hose to collect spent primers and direct them into a bucket.
--Remember to wipe down and oil your press after.

I get about 100% success at the first thump this way.
 
I use a punch that I sized in my drill press and Emory cloth put the case filled with waterin my press/shellholder and with no die in and slam the beveled punch . Usually one or two hits
I think it works good
 
Back
Top Bottom