Thread: Anybody here successfully priming BERDAN for 303 British and / or 7.62 ?

Yup, I know plenty on Youtube on de-priming. That's not the problem.

Even some on converting Brass Berdan cases to Brass Boxer.......That's not the problem either as I don't want to go there.


I have a Berdan supplier, dies and press but the problem is getting the replacement Berdan primer in, because as neither of my 303 or 7.62 y cases Berdan primer pockets match the measurements any of the 4 primers conventionally used, the dies etc don't help with "priming".

As I have a sh** load of 303 British and 7.62 Berdan primed brass and consider one bang then throw away a waste, I seek a solution for this final problem ( I hope) of reloading Berdan.



Any assistance would be appreciated.

Berdan primers come in lots of different diamensions, that’s been my prob. Thought about drill them out for a shotgun primer.
I made a hydraulicing machine but split to many cases, you need an old breech to stop this happening, 577/450 breeches r a bit hard to come by.
Glue them in with nail polish, but you can get some blow by, black powder doesn’t affect the bolt face but smokeless might.
I have some primers here.

The 303 primer was the no 41 and is .251 in diameter and contained mercury and chlorate to the end. The chlorates ok but the mercury does bugger the brass it does something to the grain structure that makes it brittle in such a way annealing cant fix. You might get a few reloads if you are lucky though. The 308 military has a .217 diameter non corrosive non mercuric one hope this helps. I have about100-150 303 primers that would be somewhere between my age and maca 49s age old if you are game. They still go bang, grandson used a few on the railway line.

Originally Posted by Maca49

Berdan primers come in lots of different diamensions, that’s been my prob. Thought about drill them out for a shotgun primer.
I made a hydraulicing machine but split to many cases, you need an old breech to stop this happening, 577/450 breeches r a bit hard to come by.
Glue them in with nail polish, but you can get some blow by, black powder doesn’t affect the bolt face but smokeless might.
I have some primers here.

Do you need a source of new 577/450 Brass?I get mine from a fella in the states,very good to deal with.It is reformed 24 gauge shotgun brass.

I have the 303 berdan primers, and a mate reloads berdan primers into 303 British cases.
I would do them myself but I don't have any cases to load, so I have 1000 odd primers and no cases to load.

He does the berdan primers on the 308 MEN cases as well.

Not sure what gear he uses, but would imagine he would prime them for a fee. Flick me a PM and we can go from there if that interests you.

Originally Posted by Maca49

Berdan primers come in lots of different diamensions, that’s been my prob....................

Thanks for your response.
I am reloading Snider and Martini Henry BUT as I have a box of "three set dies" for each, plus Magtech 24 Gauge brass which I have reformed,Large Pistol primers and have just this week started working on the bees wax, wads and packing issues, they hopefully will not be the problemare not the problem.

My problem is with reloads of my 303 British and Australian Military 7.62 Berdan primed brass. Thanks for the mention of primers but I have a source, Gunworks, with the only "fly in the ointment" being they will not deliver....(The latest Courier problem)

So I may just have to sit this one out to see if anything changes.

Originally Posted by Marty Henry

The 303 primer was the no 41 and is .251 in diameter and contained mercury and chlorate to the end. The chlorates ok but the mercury does bugger the brass it does something to the grain structure that makes it brittle in such a way annealing cant fix..................

Thanks for your response and the offer of primer availability.

I haven't de-primed the 7.62 so your 2.17 measurement will save me some work. As i mentioned to Maca below, as Gunworks have stopped delivering primers, I may just have to sit this one out to see if anything changes....Which still ain't going to solve my problem of how to get them in...

Originally Posted by Kiwi Sapper

Thanks for your response.
I am reloading Snider and Martini Henry BUT as I have a box of "three set dies" for each, plus Magtech 24 Gauge brass which I have reformed,Large Pistol primers and have just this week started working on the bees wax, wads and packing issues, they hopefully will not be the problemare not the problem.

My problem is with reloads of my 303 British and Australian Military 7.62 Berdan primed brass. Thanks for the mention of primers but I have a source, Gunworks, with the only "fly in the ointment" being they will not deliver....(The latest Courier problem)

So I may just have to sit this one out to see if anything changes.

@Kiwi Sapper
how many berdan primers do you need. I could send you a few hundred in the short term if you need some?
Im in the Hutt so I could get some to you.

Originally Posted by jim160

...................Not sure what gear he uses, but would imagine he would prime them for a fee. Flick me a PM and we can go from there if that interests you.

Thanks for the response and your comment re your mate. I would be very interested in knowing "How he re-primes", so I will sort myself out and then PM you.
Thanks again

Originally Posted by norsk

Do you need a source of new 577/450 Brass?I get mine from a fella in the states,very good to deal with.It is reformed 24 gauge shotgun brass.

I think that I am using the same brass, "25 Special cases. Magtech reformed 24 Gauge." I reform and trim them for Snider and Martini Henry(wish the MH was as simple as the Snider) The last batch of 50 cases cost me NZ$170 delivered.

I might be interested in your contact's "Delivered" price? if you would be so kind

Originally Posted by Mauser308

I found the biggest problem with the ADI F4 ball was getting the original primer out and de-crimping.................. Hydraulic decapping doesn't work on the F4 ball, and it's a pain in the arse cutting each one out and de crimping.

Hmmmmmmmm.. In between posting replies to helpful posters, I popped out for a decapping try with the 7.62............and found out you are sooooo right.

I may have to rethink any actions on the 7.62....Bugger.

thanks for the "head's Up"

Originally Posted by Marty Henry

The 303 primer was the no 41 and is .251 in diameter and contained mercury and chlorate to the end. The chlorates ok but the mercury does bugger the brass it does something to the grain structure that makes it brittle in such a way annealing cant fix. You might get a few reloads if you are lucky though. The 308 military has a .217 diameter non corrosive non mercuric one hope this helps. I have about100-150 303 primers that would be somewhere between my age and maca 49s age old if you are game. They still go bang, grandson used a few on the railway line.

2 years? Yr older than me?

I bought 24g direct from the states for my snider, since sold the gun. Was a cheap as chips? Being shotgun they could send it, Buffalo Guns
While where on “ old” things. Anyone got some No 2 Musket Brass?

Originally Posted by Kiwi Sapper

Hmmmmmmmm.. In between posting replies to helpful posters, I popped out for a decapping try with the 7.62............and found out you are sooooo right.

I may have to rethink any actions on the 7.62....Bugger.

thanks for the "head's Up"

Best to get one if the hydralic decappers produced by Phil in Christchurch
I use a mini bottle brush to hook them out and you will need a good sledge hammer to bang them out.
Also screw the base to a wooden block
To remove the crimp I use an rcbs case prep debuting tool and just carefully grind the pointed end down until it's flat enough to ream the crimp
I've found with the adi brass (AAF and MF F4) that the primers are also glued in
I give them a touch with a candle and it seems to work.

Much of the cac .303 brass and other brands like the Footsgray and dominion has become old and brittle and unless you annealling it your wasting your time even trying to use it

For the reprinting u use a lyman single hole priming tool and got a slightly wider stem turned up
Works perfectly

It's all very time consuming loading berdan but worth it if you have the time and interest.
I've loaded brass as old as 1918!!

Originally Posted by Mauser308

It's the first decapping that takes the time with the Aussie brass - it's very good stuff but by all things equal did they need to go to a tight primer pocket, a heavy full rim crimp AND glueing the damn things in with sealant???? The brass isn't THAT good. Lapua is better and has slightly more capacity, without the neck wall thickness variations. And it takes English primers, not the US Berdan type (do not ask me why the yanks adopted the English-designed system and the English the US-designed one - that one hurts my head).

Are you saying, Must've been a woman involved?