How often do you clean your barrel? What is your cleaning method? You could have carbon build up in your throat and just beyond.
How often do you clean your barrel? What is your cleaning method? You could have carbon build up in your throat and just beyond.
Since you've already reloaded the same cases with .5" accuracy I would think you did these in the exact same way. Trimming the cases would make next to no change in the ballistics. Neither would just cleaning in a walnut chips. Is there a possibility that you had some resizing lubricant inside that made some of the walnut chips stick reducing the case volume? Any changes in your loading procedure? Same bullets? Same overall length?
I screwed up once after annealing some cases, cooling in water, then tumbled them. I though I had given them time to dry but evidently not and was in a hurry. I loaded and fired a few. Several had signs of overpressure when they shouldn't have. After checking some fired and unfired rounds, several had clumps of walnut media stuck in the inside which reduced the internal volume and created a pressure rise. Another lesson learned!
I'll check the mounts and rings when I get home tonight but I don't feel that's the problem.
There are so many unknown variables how can you say for 100% that cleaning your brass degrades accuracy. There is no evidence to be had, are you on Robert Mueller's legal team.More evidence supporting my theory that cleaning brass actually harms accuracy. jd
BingoGerald, I respectfully disagree. That level of accuracy drop off is most likely not reloading related. I believe there is a gun/sighting system problem.
Was a different component used? A bad , new lot of bullets can change accuracy.
Give every component a lot number. If accuracy changes, you know where to look first.
Fine dust probably won't matter. I had clumps of cleaning media coming out of the ones that were wet inside. Q-tips are the best thing to clean and lube with. You could run them all the way in and check to see if anything comes out. I lube the inside of the necks that way with a very light coat of lube. Spraying into the case neck isn't a good idea. If you do need to wash the cases, hot tap water and dish washing liquid works well and let them soak for a couple hours. It usually takes a couple rinses to get them clean afterwards. The shake the excess water out and set them vertically for at least 24 hours to dry, or in an oven on 200° for an hour. CAUTION, wives can get upset using their ovens to dry brass. Best not to tell them!I did have a little build up of fine dust in the neck, most likely because of lube, but I brushed it out. It didn't seem to be past the neck. How would you recommend cleaning the brass after tumbling to ensure that there was no residue stuck in the case?
I did have a little build up of fine dust in the neck, most likely because of lube, but I brushed it out. It didn't seem to be past the neck. How would you recommend cleaning the brass after tumbling to ensure that there was no residue stuck in the case?
I've always heard to not de-copper the barrel very often after initial break-in in order to leave the barrel "seasoned."
Yes. I recently went to a range and my shots were all over the paper. It was driving me nuts. I reached up and put my hand on top of the scope to steady the gun and voila It shook in every direction. Base was loose. Rings and everything were great, but the dam base had worked loose.Check out the ta
look at the Crown- maybe the wife got mad at ya'
Just kidding , seriously look at the crown. My accuracy went to hell on a 308 so I checked mine it was ok. Turned out the scope WAS loose.
J