Why did my Muzzle Loader accuracy get worse? Savage Moderator September 14, 2016 15:55 Updated Follow Many factors can affect the overall accuracy: non-recommended load or loading technique non-recommended primer constricted breech plug worn vent liner bulged barrel Related articles Where is the 350 shotgun made? What the expected accuracy of my rimfire? Is there a difference in accuracy between steel and stainless steel barrels? Where do I send my firearm for service repairs? Where are your bolt action centerfire rifles made? Comments 0 comments Article is closed for comments.