I was wondering if anyone with QuickLoad or similar software could run some numbers for me. I have read about using Red Dot powder and drilling the primer flash holes out to 9/64" to aid in an even primer flash and reduce the chance of detonation from the primer flash going past the powder charge and igniting the powder from both ends. I am looking at using a 200 grain sierra SPBT loaded backwards into the case to help with stabilization (intent is to eventually start casting my own 180-220 grain soft lead alloy bullets and I understand lead bullets naturally lubricate the barrel more than jacketed and there are other benefits with lead when loading light as compared to jacketed). I have googled it a bunch and have come up with a handful of possible loads, but I wanted to pick the brains of the members here first. I have been kicking around the idea of playing with subsonic loads with it just for fun. It does not store any personal data.I have an AR15 in 7.62X39 with a 1:10 twist barrel. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is used to store the user consent for the cookies in the category "Other. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. You shouldn’t use this ammo to hunt brown bear, because that animal that would gladly use your AK-47 as a toothpick. Brown Bear gets their name from the distinctive colored lacquer they apply to their case to protect it from rust. Along with its non-corrosive Berdan primer it’s pretty much a no-go at the reloading bench, but that’s hardly a great loss if you hadn’t planned on handloading anyway. This round’s case is made of cost-effective steel as well. If your range bans magnetic ammo, they’re certainly banning this particular ammo. The most important thing to “bear” in mind is that Brown Bear uses steel in their bullet jacket to cut down on production costs. This round’s bullet offers a simple, economical full metal jacket design: smooth feeding, clean shooting, and non-expanding. This subsonic round’s heavyweight bullet doesn’t break the sound barrier when it achieves its 1,115 fps muzzle velocity, so you can train and plink that much more discreetly! But when Brown Bear loads a 7.62×39 round a 196 grain bullet – which is about 60 percent heavier than usual – its report is going to become much, much softer. So long as a 7.62×39 cartridge relies on ignition to propel its bullet down the barrel, it’s going to make some noise.
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