I'm consistently getting asked the same question: Q: "What primer should I use with your Remington 700 ML 209 conversion kit?
I usually give the same answer: A: "I'm my Remington's I use the old copper colored standard CCI 209 primers. The new CCI's you can buy now are silver and have slightly different dimension. The old copper colored ones have never given me any trouble, but I don't have enough experience to recommend the new ones (they are probably fine, I just don't have much experience with them). If I didn't have the old copper colored ones, I'd probably start with a standard Federal, their 209A, or the Remington STS 209's.
I'd stay away from Winchester. The Winchesters burn hot and ignite BH209 fine, but they tend to balloon and stick in the nose, so I avoid them. If all you have is Winchester, you may have to dryfire on the spent primer to remove it when it sticks."
"In my Ruger 77/50 I use whatever crushes without having to use shims. Just a simpler solution."
Then the next question either goes: Q: "But the Blackhorn 209 site recommends, CCI magnum 209 primers?"
A: "That is true, however I've had the magnums stick in the bolt nose at lower powder charges and require a dry fire to remove, so I personally stay away from them. If you don't mind dry firing in-order to get the spent primer out of the nose, or you work up to higher charges, you can use them (or any other 209 primer). I've personally had great accuracy and performance with the standard old copper colored CCI and Blackhorn 209 so that is what i use. Federals and Remington STS primers work good too. With our Remington kit, you can really use whatever primer you tune your breech plug to. For the Ruger you can use what gives you a proper crush seal."
Or the next question is: Q: "I'm using Pyrodex/TripleSeven/Black powder, I've heard full power primers are too powerful, and will drive the powder down the bore, un-compacting it, and gives inconsistent performance, and poor ignition."
A: "That can happen. I believe its most probable with loose fitting projectiles (like minie balls, power belts, Bore locks etc). I stuck with tight fitting Sabots and standard CCI's and was OK back when I shot TripleSeven. Feel free to follow proper load development practices and experiment with other 209 primers. I myself have always been pleased with standard CCI's."
"If standard 209's are not giving you the accuracy you want (with black powder substitutes other than Blackhorn209) you may want to try the low power "black powder" only primers. I'd try the ones with the same name as the powder you are using. However, understand, that they may stick in the bolt nose and require a dry firing to remove. ie Winchester 777 primers."
If sealed breech and 209 primers are legal for hunting in your state (only Idaho and Oregon restrict sealed breeches and 209's), I suggest you give our kit with Blackhorn 209 a try (and only with regular full power shot shell primers). Blackhorn 209 has given me better performance in every way imaginable. But remember Blackhorn 209 will not work with the low powered "black powder" primers; they don't have enough heat to consistently and fully ignite Blackhorn 209.
Check out the video below for real world examples of our Remington 209 kit using old copper standard CCI's functioning just fine with BlackHorn 209
In the video below I shoot a rifle I just converted to sealed breach 209 primers. I used Blackhorn 209 and CCI magnums at 80 grains by volume (a minimum charge), and I got a few sticking primers that required a dry-fire to remove.
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