yodogsandman
Well-Known Member
I've shot thousands and thousands of rounds using dacron in my 7.62X51 (308) Mauser. It helped to prevent stringing using 28.0 gr AA2230 and the 195 gr RCBS 30-180 SP. BUT.....
I had Dacron build up in my chamber, just at the end of the case mouth in my 6.5 Swede . It was black hard plastic melted into it. It caused a situation where I got erratic ignition/high pressure using Reloader 19 and discontinued shooting the remaining rounds in the lot. The last shot I took, I believe, caused the case mouth to hold the bullet, almost preventing it's release. The bolt lifted hard and had a heavy scrape on the base of the case. That's when I found the blackened, melted deposit on the case mouth. I scrubbed the chamber with a bore brush and used a pick to completely remove the crud at the end of the case mouth in the chamber. I haven't used Dacron batting since (for over a year).
This is the first time I've mentioning it to anyone. I was afraid I did something wrong. After much consternation, I just know it wasn't me, done it thousands of times before. I fluffed the 1/2 gr square of Dacron batting up and using a wooden match stick (sans the tip), pushed it into the case mouth, little by little, with it showing half way up the neck. Maybe it shouldn't be used in the smaller necked cartridges. Proceed with caution using Dacron, my friends.
I had Dacron build up in my chamber, just at the end of the case mouth in my 6.5 Swede . It was black hard plastic melted into it. It caused a situation where I got erratic ignition/high pressure using Reloader 19 and discontinued shooting the remaining rounds in the lot. The last shot I took, I believe, caused the case mouth to hold the bullet, almost preventing it's release. The bolt lifted hard and had a heavy scrape on the base of the case. That's when I found the blackened, melted deposit on the case mouth. I scrubbed the chamber with a bore brush and used a pick to completely remove the crud at the end of the case mouth in the chamber. I haven't used Dacron batting since (for over a year).
This is the first time I've mentioning it to anyone. I was afraid I did something wrong. After much consternation, I just know it wasn't me, done it thousands of times before. I fluffed the 1/2 gr square of Dacron batting up and using a wooden match stick (sans the tip), pushed it into the case mouth, little by little, with it showing half way up the neck. Maybe it shouldn't be used in the smaller necked cartridges. Proceed with caution using Dacron, my friends.