Don't know if this is the right location for this question, but here goes: Barrel Ring -- I know what it is, my question is what causes it? Anybody out there who might explain it to me?
Don't know if this is the right location for this question, but here goes: Barrel Ring -- I know what it is, my question is what causes it? Anybody out there who might explain it to me?
That usually means you had a squib load, and fired another round into the bore obstruction.
The solid soft lead bullet is undoubtably the best and most satisfactory expanding bullet that has ever been designed. It invariably mushrooms perfectly, and never breaks up. With the metal base that is essential for velocities of 2000 f.s. and upwards to protect the naked base, these metal-based soft lead bullets are splendid.
John Taylor - "African Rifles and Cartridges"
Forget everything you know about loading jacketed bullets. This is a whole new ball game!
we had some dcm 30-06 ammunition years ago that was said to cause a ring. supposed to be machine gun ammo. the dcm replaced it when it was discovered. the ring was just ahead of the chamber as I understand.
The cause is an extreme pressure spike. What brings on the high pressure can vary.
Even snow or dirt can cause a ring. See most of them on 22 rim fire and revolvers.
How does this phenomenon relate to using a filler or ldpe wad?
The other one I have been told is excessive oil in the bore.
When fired uncleaned the oil can not compress (& is not pushed out fast enough) therefore acting as a bore obstruction.
Pretty sure I have done exactly this to a 7mm of mine...
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |