which primer?

Col. Harrumph · Jul 31, 2019

Just finished tryouts with an Iver Johnson .32 that hasn't spoken in probably 100 years... 50 for sure as I've owned it that long and shot with it for the first time just yesterday.

6.4 gr. FFFg in Starline brass with CCI small pistols... 30% ftf's that needed a 2nd strike to make noise.

A new hammer spring is not an option. Can you point me to a primer with a softer cup than the CCI's?

Havok7416 · Jul 31, 2019

Federal for sure is softer. Possibly also Winchester.

cw308 · Jul 31, 2019

Are you bottoming your primers when seating , you should feel them bottom . ftf can happen if primers are flush with base . Something to check . I've been using both CCI and Federal , both fire 100% . Uniforming your primer pockets may be something to look into .

Havok7416 · Jul 31, 2019

This is a very old gun, likely with original and very hard to find springs. Normally I would tend to agree that the ammo could be a problem, but I think in this case finding a different primer as the OP is asking might be a better solution.

mdi · Jul 31, 2019

Col. Harrumph said:
Just finished tryouts with an Iver Johnson .32 that hasn't spoken in probably 100 years... 50 for sure as I've owned it that long and shot with it for the first time just yesterday.

6.4 gr. FFFg in Starline brass with CCI small pistols... 30% ftf's that needed a 2nd strike to make noise.

A new hammer spring is not an option. Can you point me to a primer with a softer cup than the CCI's?

I understand you are loading BP, but to help isolate the problem, would factory ammo be an option?

fpgt72 · Jul 31, 2019

I have a walther model 8 that likes soft primers....25acp in my case....talk about itty bitty stuff to work with.

Try winchester they worked in mine.

Zendude · Jul 31, 2019

Federal match primers will help. Had a similar issue on a revolver with a weak hammer spring.

Whiterook808 · Jul 31, 2019

Go with Federal as suggested earlier. My 1980's vintage Gold Cup has a light spring in it and Federal is the only primer that works reliably in it.

ArchAngelCD · Jul 31, 2019

If you want to buy a box of ammo loaded with black powder as a test Buffalo Arms sells it.
https://www.buffaloarms.com/obsolete-hard-to-find-ammunition/black-powder-ammo

Warning, it's very pricey!

rfwobbly · Jul 31, 2019

Col. Harrumph said:
Can you point me to a primer with a softer cup than the CCI's?

That's easy. ALL primers are softer than CCI.

Col. Harrumph · Aug 1, 2019

OK thanks everyone. I could try a factory load and if someone made a cowboy or other reduced load I'd be all for that. But this is a BP top-break and I'd rather not risk overstressing the latch. CW, the primers were bottomed and it's brand new brass.

ArchAngelCD · Aug 1, 2019

Col. Harrumph said:
OK thanks everyone. I could try a factory load and if someone made a cowboy or other reduced]
Go to remove link in Post #9 for black powder factory ammo.

Col. Harrumph said:
OK thanks everyone. I could try a factory load and if someone made a cowboy or other reduced load I'd be all for that. But this is a BP top-break and I'd rather not risk overstressing the latch. CW, the primers were bottomed and it's brand new brass.

Go to the link in Post #9 for factory BP loaded ammo.

which primer?

Col. Harrumph

Member

Havok7416

Member

cw308

Member

Havok7416

Member

mdi

Member

fpgt72

member

Zendude

Member

Whiterook808

Member

ArchAngelCD

Member.

rfwobbly

Member

Col. Harrumph

Member

ArchAngelCD

Member.

Similar threads