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Member Joined: 06 Oct 2007 Posts: 2346 Location: West MI

Thought I'd share an interesting observation with the reloading braintrust. Recently switched to Fed209a primers from CCI209's. Researched appropriate recipes and adjusted machine/drop's accordingly. Observation; the unfired once domed Fed primers after firing are flattening out. Hull on left fired flattened primer, unfired on right. Seems like the brass primer dome is fire forming against the breech-face. Normal behavior or ??

Thanks for the outside the fishbowl insight guys, fixed it.

Image link is password locked.

Joined: 03 Feb 2008 Posts: 830 Location: Adirondak Mtns

yep Locked.

The Green Cheditte probably has an enlarged primer pocket from oversized cheditte primers. So it was probably loose and slid back when fired.

putz.

if you measure the Fed primers some only measure .241. I ran into a problem when reloading some 20 gauge cheddites. One or two hulls I could push the fed primer all the way in by hand. No problem with the Win primers. The Win primers measure .243

By the way. Tracking number is-9114999944313365430328

Member Joined: 09 Jan 2013 Posts: 2168 Location: Florida

Member Joined: 06 Oct 2007 Posts: 2346 Location: West MI

Appreciate the good feedback, thanks.

Primer pockets range from once fired to several fired's, none falling out loose (I recondition when needed or relegate to the "to be nobel sport primed" pile) and none of the CCI primers did this. Yes, some of the Fed's do mic a bit smaller than the CCI and Win's. Thought it might be a primer loose in the pocket issue before posting but cant wrap my brain around primer movement when there is no headspace issue in the gun and the silver outer flange on the primer measures the same whether fired or unfired so it didn't get smashed back against the breechface, trumpet out and allow the primer dome to get flattened, also, the spent primer isn't protruding from the base of the hull any different than when loaded. It seems to be the primer dome itself has been shoved back while in the primer case and flattened out. Maybe the primer case is slightly enlarged during the firing sequence allowing the dome to slide back and get smashed??

Since there's no evidence of gas release or escape I'm not too worried, just an odd one not seen before on this reload bench. Hmmm??

Thanks OH, I'll keep an eye out for it; we good on fair/equal trade values?

Putz,
sorry the photo looked to me like the primer was loose and I thought the black stuff was gas residue. I misinterpreted the photo.

Member Joined: 06 Oct 2007 Posts: 2346 Location: West MI

No need to apologize, it's all good, simply interesting sharing ideas, thanks for the input.

FYI, and I should have mentioned it outright, the black stuff is Sharpie Marker, I mark the primers my "long range" target shells with a dab of black SM so at a glance in the chambers I know which is which. I've never been very good at coloring inside the lines, so there ya go. Very Happy

OH, did the problem with Fed primers include them flattening out like these?

Member Joined: 15 Mar 2007 Posts: 601 Location: Virginia

Federals are domed, as you point out. I use a lot of them and they all exhibit the flattening no matter what load. In fact, I would be very surprised if they didn't. Other primers that are somewhat domed also flatten. The only primers I've seen that didn't flatten were Fiocchis and Wolfs. They're already flat.

Dan

Member Joined: 06 Oct 2007 Posts: 2346 Location: West MI

Thanks DL, kinda what I was looking for, appreciate the input.

Have a little bin full of ~1700 spent Nobel, CCI & Win primers from last Duck & Goose season and winter targets shot through 5 different guns and none flattened out. Just got into these Feds and noticed the flattening.

Business as usual, carrying on...

Member Joined: 06 Oct 2007 Posts: 2346 Location: West MI

Hmmm, thanks for sharing 16GG. What I did find after carefully sanding off a small segment of a spent Fed primers housing' circumference and studying it closely, it's obvious that the primer cup is sliding back within the primer housing and smashing flat back against the breech face. The dissected other primers aren't doing this and as gathered from DL's post that it seem's fairly common with Fed primers so I'm good with that. Carrying on...