PPU primers too large?

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All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.

Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
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Oddbod

Re: PPU primers too large?

#31 Post by Oddbod »

I've had a few issues with primers failing to seat during my latest US visit.

Wolf Large Pistol primers needing enough force that a Lee Hand Prime broke - fixed by using an RCBS Universal Hand Primer. We use them because they're $14/1,000 instead of $30 for CCI or Federal.
Missing a couple of Small Pistol primer .45 cases during the sorting process leading to a need to dismantle the hand primer in order to remove the case. :oops:
Seating primers in crimped cases need a LOT of effort if you don't remove the crimp first. More of an issue with 5.56 really, as there's far more military crimped cases to be scrounged up at the range.
Steve

Re: PPU primers too large?

#32 Post by Steve »

dromia wrote:It is well worth investing in a Ram Prime unit

Thought i'd post another update.

I got my ram prime couple weeks back. It now takes very little effort to seat,but...i had 2 more failed primers which from a box of 100 isnt good odds.

Just a shame i have another 900 to go... :bad:
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Re: PPU primers too large?

#33 Post by dromia »

You need to make sure that they aren't seating a tad too deeply and the anvil is crushing and perforating the compound.
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Re: PPU primers too large?

#34 Post by Steve »

dromia wrote:You need to make sure that they aren't seating a tad too deeply and the anvil is crushing and perforating the compound.

They're level so not too deep. They've failed using the upstroke of press where i had to almost batter the things in and now on the downstroke using little effort with the ram prime.
Doz

Re: PPU primers too large?

#35 Post by Doz »

Steve wrote:I got my ram prime couple weeks back. It now takes very little effort to seat,but...i had 2 more failed primers which from a box of 100 isnt good odds.
No consolation I know, but I've probably used three or four thousand PPU primers over the last few years and (touch wood) haven't yet had a failure to fire. Wonder if something untoward had happened to the box you're using?
Steve

Re: PPU primers too large?

#36 Post by Steve »

Ok,a follow up to a follow up.

Tried both 303 and 8mm reloads last week with the PPU primers using the ram prime thingy and didnt get a single failure.Now whether this is just pure chance or if the primers were being damaged by me having to use so much force to get them into the case im not sure!
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