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Post by nivlac1960 on Jan 15, 2018 18:12:57 GMT -5
Has anyone here ran into this issue while shooting a Ruger American Ranch rifle. My buddy contacted Ruger today to find out why the soot was on the fired factory case. The Ruger rep told him that the soot was caused from an oversized chamber. He suggested that my buddy send in his rifle along with a spent factory case to see if they need to replace the barrel. Has anyone here heard of this before this post? I'm getting soot along the sides of my factory brass in my Ruger also. Just wondering if it's a widespread problem or just a few oversized chambers.
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Post by 7mmfreak on Jan 15, 2018 22:09:54 GMT -5
I don't shoot that cartridge but in bolt guns that are cut big (neck in particular) or with ammo excessively sized, you'll get carbon fouling on the neck and/or shoulder. With gas guns that don't have enough dwell time, the early unlocking will cause cases to be filthy. Proper gassing combined with proper BCG weight and spring will give you clean cases.
I'd call and get an RMA so it can be inspected. In most factory guns you'll get carbon fouled necks but if you are getting filthy cases I'd suspect an over-sized chamber.
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Post by killahog on Dec 8, 2018 18:50:49 GMT -5
Have your Buddy do a chamber cast, it is really easy and you will know exactly what the dimension is.
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Post by encore50a on Dec 9, 2018 16:00:18 GMT -5
The straight walled .450 Bushmaster case I believe head spaces off the case mouth itself. In bolt rifles, resizing them continues to complicate the "soot" or carbon. Although some may be dirtier than others, I've yet to not see at least some dirty cases from rifles, including my custom. I've had shooters who didn't reload send me their spent cases, I've purchased or traded for some. I've yet to receive totally clean fired cases and tumble them all.
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busta
8 Pointer
Posts: 105
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Post by busta on Dec 9, 2018 20:08:48 GMT -5
This is an old post, but soot on the straight walled case is totally normal. I've got a CVA Scout V2 (1:24) and a Ruger American Ranch (1:16) both chambered in .450 Bushmaster.
But both are capable of (and have several times) shooting under 1/2" 3 shoot groups at 100 yards with Factory Ammo. So I don't mind a little soot on the empty cartridge case. Doesn't hurt a thing!
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