MikeChapin
58 Cal.
- Joined
- Apr 5, 2005
- Messages
- 2,183
- Reaction score
- 6
I have been shooting .515 balls with .024 canvas patching. The rifle shoots well but I want to go back to shooting .520s because casting balls is a little easier with a double cavity mold.
I used to shoot .520 balls with .018 Ox Yoke ticking but started having fliers. I found the Ox Yoke was burning though one or two out of five patches. I switched to a .515 ball with .024 and the problem went away. I did want to go back to the .520s so, about a month ago, I tried out the .520s with a .022 medium weight denim patch. The group at 50 yards was horrible, about six inches. I didn't have time to mess with it then so put load workup on hold.
Yesterday I went back out to the range to work up a load for the .520 ball. I normally shoot 50 grains 3F with the .515 and had tried that last month so I fired two five shot groups with 55 and 60 grains. Both were still in the 5" to 6" inch range at 50 yards. The patches I recovered looked fine with no cutting or burn through. I was not very happy with it. Normally I should see some improvement but there was none in this case.
I decided to try the .024 canvas I use for the .515s and see if they would even load with less than a two pound sledge. I dropped back to 50 grains and tried the canvas. They started with just a sharper slap on the short starter and went down fine. The target I had been using was pretty shot up so I switched to a target someone had left up. It had a pristine day-glow center. The first shot went in center. The second shot went in touching the first. The third shot cloverleafed the other two. Now that is what is supposed to happen.
I decided to try three shots offhand at 25 yards. There was the same type of pistol target there that had a clean center. I put two touching in the middle. The third shot was an inch off but I had wobbled up there when the rifle went off. The ball went right where the sights were at when it went off. Yahoo!
This was the most dramatic shift I have ever seen with a change in patching. Normally I adjust the load to get the best group at 50 yards. If the shots are not touching I then mess with the patching until I start tearing out the center. Normally this takes about a two inch group down to cloverleafs. I have never seen it take a six inch spray down to a cloverleaf with just a change in patching.
Now I have to take it out to 100 yards and see what load it needs to go dead on at that range. Casting will go a little faster using a two cavity mold instead of the single.
I used to shoot .520 balls with .018 Ox Yoke ticking but started having fliers. I found the Ox Yoke was burning though one or two out of five patches. I switched to a .515 ball with .024 and the problem went away. I did want to go back to the .520s so, about a month ago, I tried out the .520s with a .022 medium weight denim patch. The group at 50 yards was horrible, about six inches. I didn't have time to mess with it then so put load workup on hold.
Yesterday I went back out to the range to work up a load for the .520 ball. I normally shoot 50 grains 3F with the .515 and had tried that last month so I fired two five shot groups with 55 and 60 grains. Both were still in the 5" to 6" inch range at 50 yards. The patches I recovered looked fine with no cutting or burn through. I was not very happy with it. Normally I should see some improvement but there was none in this case.
I decided to try the .024 canvas I use for the .515s and see if they would even load with less than a two pound sledge. I dropped back to 50 grains and tried the canvas. They started with just a sharper slap on the short starter and went down fine. The target I had been using was pretty shot up so I switched to a target someone had left up. It had a pristine day-glow center. The first shot went in center. The second shot went in touching the first. The third shot cloverleafed the other two. Now that is what is supposed to happen.
I decided to try three shots offhand at 25 yards. There was the same type of pistol target there that had a clean center. I put two touching in the middle. The third shot was an inch off but I had wobbled up there when the rifle went off. The ball went right where the sights were at when it went off. Yahoo!
This was the most dramatic shift I have ever seen with a change in patching. Normally I adjust the load to get the best group at 50 yards. If the shots are not touching I then mess with the patching until I start tearing out the center. Normally this takes about a two inch group down to cloverleafs. I have never seen it take a six inch spray down to a cloverleaf with just a change in patching.
Now I have to take it out to 100 yards and see what load it needs to go dead on at that range. Casting will go a little faster using a two cavity mold instead of the single.