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Old 01-14-2021, 11:44 AM
ford8nr
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SRP and SPP primers in 9mm loads ?



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Primers SRP and SPP loading 9mm
Asked about this on another site. Here was one of the postings on another thread.
Good info from an informed source.

https://youtu.be/NGVRGsoOr6k
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  #2  
Old 01-14-2021, 09:02 PM
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That was a really good video. I have been wondering this very thing as well and have been using a bunch of large pistol magnum primers in 45 ACP loads instead of just large pistol primers. As I am shooting lighter loads I haven't been to worried about it. It really looks as though pressure and velocity are pretty much equal. I wonder if the bigger question would be are match primers really more consistent than standard primers just like match grade rimfire ammo is more consistent?
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Old 01-16-2021, 07:30 PM
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Really good video! My two favorite powders for my Sig P220 45acp are Blue Dot & Long Shot. Maybe there wasn't a need to reduce my charges for the magnum primers.
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Old 01-17-2021, 06:04 AM
Andyd
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That is really good info from an informed source. Thanks for sharing it. I have always used whichever primers I had on hand and only reserved Magnum loads with a high load density for Magnum primers for the supposedly stronger flash.
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Old 01-17-2021, 09:18 AM
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Excellent. Very interesting results, for sure. Really opens options up.
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Old 01-17-2021, 11:54 AM
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That was an interesting video. I would opine that one of the critical factors is the small amounts of powder in pistol cartridges. When I was researching and writing the white paper on the differences between 308 Win and 7.62 NATO, I found several independent tests where merely changing brands of primers could affect peak pressures by as much as 4000 PSI. Also, take into account that even under the same SKU, the primers you bought last year may not have the same formula as primers you might buy in the future (when the current situation is resolved), as primer manufacturers are always tweaking their formulas.
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Old 01-21-2021, 07:08 PM
ford8nr
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Loaded up some test loads today Win231 and Rem SRP. Both loads shot extremely well in 3 guns. The light loads wouldn't lock the slide back on an empty mag on 2 guns but both run over power recoil springs.
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Old 01-22-2021, 04:51 PM
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I've been using Rem 6.5s for 9mm and .38 Spl for awhile now. Zero issues in any 9mm pistol so far. The impetus, years ago, was something with a thicker cup for open bolt subguns. Now it's about flexibility.

Some revolvers give misfires, firing double action especially. Kinda don't care cuz using them in pistol classes and result is a built-in misfire drill.
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Old 02-06-2021, 05:10 AM
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CCI 400 primers work fine in my two 9mm CZ75 clones. S&B SRPs did not, giving 1 out of five requiring a second hit to ignite. This tidbit is rather useless as you can't get any suitable primers right now.
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Old 02-06-2021, 06:49 AM
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Remington 7 1/2 work fine too in many loads including 357 mag and 38 super. The limit is not a spike in pressure, but instead a cup thickness sensitivity issue. If you can set off the rifle primers with your gun reliably you are good to go with the substitution in pistol loads but you may want to work back up to max.
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Old 02-06-2021, 07:28 AM
ford8nr
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Quote:
This tidbit is rather useless as you can't get any suitable primers right now
It's useful if you have a stash of SRP's. I had 1300 and just picked up 1000 more two weeks ago walking through Cabela's. My Cabela's day haul.
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Old 02-06-2021, 07:52 AM
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I went to a gun show last night and saw a number of tables with primers available. I've kind of quit checking prices as they are all higher than I will pay. I was looking at some guns though and I heard the dealer say OK that will be $675, there were 3 boxes of 1000ea primers sitting there. I figured I heard the price wrong or the guy was getting more stuff..I stood off to the side as the buyer counted out $675 cash and picked up the 3 boxes before walking off. CRAZY! Ive seen those high prices posted but never saw anyone buy at that price.
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Old 02-06-2021, 07:58 AM
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Quote:
Originally Posted by grg View Post
I went to a gun show last night and saw a number of tables with primers available. I've kind of quit checking prices as they are all higher than I will pay. I was looking at some guns though and I heard the dealer say OK that will be $675, there were 3 boxes of 1000ea primers sitting there. I figured I heard the price wrong or the guy was getting more stuff..I stood off to the side as the buyer counted out $675 cash and picked up the 3 boxes before walking off. CRAZY! Ive seen those high prices posted but never saw anyone buy at that price.
That's not too far off the mark....

If you look on Gun^Roker, you'll see srp going for about 19 or 20 cents apiece.
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Old 02-06-2021, 08:17 AM
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Local auction have been going for just over $200/1000.
I paid $46 at Cabela's two weeks ago.

People need to slow down and quit paying panic buying prices.
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Old 02-06-2021, 11:56 AM
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Quote:
Originally Posted by ford8nr View Post
Local auction have been going for just over $200/1000.
I paid $46 at Cabela's two weeks ago.

People need to slow down and quit paying panic buying prices.
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