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Post by foxtrapper on Jul 10, 2024 14:52:33 GMT -5
I knew the word started with a “F”! Thank you Dick for the reminder it’s “ fun” not frustration! lol I use the same set of dies for loading cast and jacketed. Would an undersized expander ball effect the jacketed bullet too? If I remember right I do have some cast Montana 220gr. They are not gc’ed . Any recommendations on a starting powder and load?
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Post by sixshot on Jul 10, 2024 18:54:33 GMT -5
The expander ball wouldn't have any effect on a jacketed bullet but it "might" be squeezing down a soft cast bullet just enough to effect your accuracy, not sure without you pulling one of your seated bullets & measuring it again. Gotta keep trying, the answer is there somewhere for sure. For a while my 10.5" FA 41 magnum wouldn't shoot & I was right up against leaving for Africa, yikes! Found out I needed to seat my bullets just a bit deeper by going with a different style cast bullet. My bullets would not shoot but the bullets with a bit more seating depth were magic. Try seating .010" deeper or even .020", back off your powder charge a tick if you're heavy first. Should be easy with a single shot.
Dick
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freeze
.30 Stingray
Posts: 100 
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Post by freeze on Jul 10, 2024 18:54:42 GMT -5
Any idea of what velocity you are at on either the fast end or the slow end?
-Freeze
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edk
.375 Atomic
Posts: 1,162
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Post by edk on Jul 12, 2024 7:20:22 GMT -5
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Post by foxtrapper on Jul 22, 2024 15:38:28 GMT -5
Back from the range with some interesting results. I found in my stash Montana 220 cast plain base, they are sized .411. I loaded up five each with aa#9, H110 and 4227. All middle powder weights from Lyman cast bullet manual. The h110 and #9 showed great promise! Gonna ladder the two powders. The difference between the sledgehammer and the Montana is gas check and being sized @ .410. So it’s gratifying to see the gun will shoot cast! Now before I bail on this mp mold ,do you think it’s worth giving a .411 sizing die a try? It will have to be a Lee custom as they only offer .410
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Post by bradshaw on Jul 22, 2024 16:41:58 GMT -5
Back from the range with some interesting results. I found in my stash Montana 220 cast plain base, they are sized .411. I loaded up five each with aa#9, H110 and 4227. All middle powder weights from Lyman cast bullet manual. The h110 and #9 showed great promise! Gonna ladder the two powders. The difference between the sledgehammer and the Montana is gas check and being sized @ .410. So it’s gratifying to see the gun will shoot cast! Now before I bail on this mp mold ,do you think it’s worth giving a .411 sizing die a try? It will have to be a Lee custom as they only offer .410 ***** Hipe we’re targeting @ 100 yards here, or at least fifty. Providing good marksmanship, the bullet remains the prime suspect. Since your control bullet, the Hornady 210 XTP, proves a shooter, it’s safe to conclude the Hornady possesses both STATIC and DYNAMIC BALANCE. No matter how good a bullet looks, it cannot cover distance in a straight line unless it is balanced. If the bullet’s LONGITUDINAL CENTER of GRAVITY falls outside the BORE AXIS, the heavier side of the bullet will pull the bullet away from symmetrical flight. A load which pushes the bullet straight, while numerous other loads send it wide, you may have a bullet that is balanced but load-sensitive. All three magnums----.357, .44, and .41----possess high intrinsic accuracy. The Daddy Magnum, the 1873 .45 Colt, I would say the .45 Colt possesses high intrinsic accuracy as well, but specufication packages for the guns have been an itinerant hobo for generations.(The 9mm Luger followed that trend until the last several decades.) Whereas, chamber and cartridge specifications for .357, .41, and .44 magnums held firm since inception. When I am uncertain of a bullet’s accuracy----or, for that matter, a load’s accuracy----I sandbag a group with unproven bullet or load, and then group a proven load. Since I can have a hard time telling up close, I prefer to target @ 50 yards, followed by the length of a football field. When the shooter follows the COORDINATIONS of technique, it requires relatively little ammo to sugar off accurate ammunition. David Bradshaw |
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Post by foxtrapper on Jul 22, 2024 17:27:34 GMT -5
Back from the range with some interesting results. I found in my stash Montana 220 cast plain base, they are sized .411. I loaded up five each with aa#9, H110 and 4227. All middle powder weights from Lyman cast bullet manual. The h110 and #9 showed great promise! Gonna ladder the two powders. The difference between the sledgehammer and the Montana is gas check and being sized @ .410. So it’s gratifying to see the gun will shoot cast! Now before I bail on this mp mold ,do you think it’s worth giving a .411 sizing die a try? It will have to be a Lee custom as they only offer .410 ***** Hipe we’re targeting @ 100 yards here, or at least fifty. Providing good marksmanship, the bullet remains the prime suspect. Since your control bullet, the Hornady 210 XTP, proves a shooter, it’s safe to conclude the Hornady possesses both STATIC and DYNAMIC BALANCE. No matter how good a bullet looks, it cannot cover distance in a straight line unless it is balanced. If the bullet’s LONGITUDINAL CENTER of GRAVITY falls outside the BORE AXIS, the heavier side of the bullet will pull the bullet away from symmetrical flight. A load which pushes the bullet straight, while numerous other loads send it wide, you may have a bullet that is balanced but load-sensitive. All three magnums----.357, .44, and .41----possess high intrinsic accuracy. The Daddy Magnum, the 1873 .45 Colt, I would say the .45 Colt possesses high intrinsic accuracy as well, but specufication packages for the guns have been an itinerant hobo for generations.(The 9mm Luger followed that trend until the last several decades.) Whereas, chamber and cartridge specifications for .357, .41, and .44 magnums held firm since inception. When I am uncertain of a bullet’s accuracy----or, for that matter, a load’s accuracy----I sandbag a group with unproven bullet or load, and then group a proven load. Since I can have a hard time telling up close, I prefer to target @ 50 yards, followed by the length of a football field. When the shooter follows the COORDINATIONS of technique, it requires relatively little ammo to sugar off accurate ammunition. David Bradshaw Yes groups are fired at 50 yrds. Again thank you for the great information! I’m most likely going to toss another 50 bucks at this mold to get the Lee .411 die. Right now I’m extremely happy hitting a 4” diamond shape steel target at 100 yrds 98% of the time with the xtp’s! |
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Post by bigbore5 on Jul 22, 2024 18:09:21 GMT -5
Just lapp out the .410 sizer.
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Post by foxtrapper on Jul 23, 2024 5:44:44 GMT -5
Just lapp out the .410 sizer. Wouldn’t even know how to go about it! Lol |
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Post by bigbore5 on Jul 23, 2024 9:17:54 GMT -5
There's directions on how to do it on here and on the Cast Boolits forum. Not hard. Slot a piece of dowel rod (I used a coping saw), put a length of 400 or 320 grit sandpaper in the slot wrapped around the dowel to fit in the die. Hold the dowel so it doesn't turn as you roll the die up and down your thigh. It doesn't take much, so push a bullet through to check what it's sizing to. Then do it with some 1000 grit the same way to polish it up.
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