Klaus said:
Good Morning
pls allow me asking for a Ball Size issue
following common information the Ball Size for CVA/Ardesa Barrels are often smaler as for italian made barrels.
My Cal.45 Kentucky or Mountain Rifle shoot better with .440 as with .445 balls
will this have a validity for CVA / Ardesa Cal.54 Barrels also?
thx for your experiences
Klaus from Cologne
Hello Klaus (Guten Morgen)
As far as determining the best diameter round ball for your 54 caliber muzzle loader, the best way is to use a micrometer to measure the groove to groove measurement of the bore. If you do not have a micrometer or access to one then I suggest that you start with the .530 round ball along with patching material that is .015 thick. Take note of how easily the patched ball goes down the bore. Be sure to put powder down first though!
If the patched round ball (PRB) seats easily then you will probably need to increase the thickness. Moderate resistance is normal and with practice you will know what that is for your rifle. Much resistance or the need to use a mallet to get the PRB seated means your patch is too thick. Another way to figure this out is to "read" your patches after each shot. Patching material that is burned through, torn or shredded generally indicated the need for thicker material.
Now, my 54 caliber rifles both require .530 ball along with either .015 or .018 patching material. The older one of the two is a semi custom rifle that uses a Lyman barrel. They are made by Investarms of Italy to this may not compare well with your Spanish made barrel, but here's what I've found. I started shooting the older rifle with .530 ball and .015 patches which gave good accuracy. Resistance to ramming the PRB down the barrel was moderate for the first 100 shots or so. Then it got a bit easier and I thought it was just a result of the bore getting polished, which was partly true. Accuracy remained the same; good but not great. I thought it was just me and that I just needed to get better. After a while I changed patch material, tried different lubes and even tried lead conical bullets. Then I was advised to find some thicker patching material, which was mattress ticking. Lightly compressed it measures .018 thick and I also learned how to cut the patch at the muzzle. It was only then that this rifle started shooting excellent groups consistently. On a side note, I've found that at least when used in my .54 rifles, the .535 RB requires a very thin patch in order to be loaded with the use of a mallet and the accuracy or mediocre at best. However, you should try some in your rifle if you can't get good accuracy using the .530, just remember to start with a thinner patch.
I hope this helps answer your question and that you get to shoot your muzzle loader often and well.