Originally Posted by
gwpercle
Bell type fishing sinkers , also refered to as bass casting sinkers , they have a tear drop or bell shape.
The small pointy end has a small brass eyelet for the line and may swivel.
I went to fishing department and bought an assortment of the larger bell sinkers that would fit 30 , 35 and 45 bores . I don't remember what weight bell sinker fit the 30 cal. best , sorry .
You can clip off the brass swivel , center the pointy end into the muzzel and gently tap the big end using a short rod and light hammer. Don't hammer directly on the bell sinker the mallet will distort it. Hammer on a rod just under the bore's diameter. Make sure to drive sinker in straight...if cocked, remove , use a new sinker and get it going straight. The pointy end helps to get things going.
Buy several of the right size and slug the bore three times to ensure proper readings. You might mess up a couple untill you get the hang on slugging .
I found the bell sinkers easier to use than a round ball and the local Academy , Cabela's and Bass Pro Shops all had lots of sinkers in different sizes.
Gary