patch size?

[rcm]

I was just wondering approx. what diameter is a pre-cut patch for a 50 cal RB? I was thinking about manually cutting a few, but wasn't sure what diameter to cut it. The used patches I've recovered are a bit hard to get a good measurement, what with the fraying.

 

[crudedude]

Patch dia. should be 1/2 bore dia,(not ball dia.)x 3.12 + Bore dia. In other words: .25 x 3.12 =.78 + .50 =1.28 dia.Hope this answers your inquiry.

 

[jimeckersley]

If you want a perfectly fit patch, every time, use strips of ticking or denim of the correct thickness and cut your patches at the end of the barrel after seating the ball. If you're interested in learning how,we can have a discussion about it.

 

[DMURPHY317]

I prefer to cut the patch after starting the ball. After seating the ball tends to give a long ribbon effect. :crackup:

 

[jim gray]

Patch dia. should be 1/2 bore dia,(not ball dia.)x 3.12 + Bore dia. In other words: .25 x 3.12 =.78 + .50 =1.28 dia.Hope this answers your inquiry.

Wouldn't that be the same as 5.12 x the radius of the bore, or 2.56 x the bore diameter?

I always cut them a little bigger than necessary anyway. I can never get the patch to stay perfectly centered on the bore.

 

[Stumpkiller]

Ummm. I use 1-3/8" strips for my .50 and .54 because that leaves a little remaining on either side when cutting at the muzzle so I know I have enough.

Guess it works out emperically or mathematically! :hatsoff:

 

[jimeckersley]

I prefer to cut the patch after starting the ball. After seating the ball tends to give a long ribbon effect. :crackup:

I did say "after seating the ball" didn't I? I think I meant to say after sitting on the ball. It's hard on your denims but the patches are perfect every time.