Looking for recommendations on a HP mold for 10mm that cast 402" boolits (180-200gr).
Also, what alloy mix seems to work best for expansion?
Wanting to try something different and may possibly use for hunting Axis, Whitetail and/or hogs.
Looking for recommendations on a HP mold for 10mm that cast 402" boolits (180-200gr).
Also, what alloy mix seems to work best for expansion?
Wanting to try something different and may possibly use for hunting Axis, Whitetail and/or hogs.
Does Accurate make HP molds?
"There is nothing like looking, if you want to find something."
~Thorin Oakenshield
best expansion?
I assume you are looking for the Goldielocks recipe?
not too much and not too little...but just right.
I think you'll only find that through testing with your loads, shot through your gun.
Good Luck.
https://castboolits.gunloads.com/sho...oint-expansion
One hint is: A alloy with balanced Tin and Antimony is less likely to fragment...a quality that is desirable for a expanding boolit. I'd probably start the testing with 97-1.5-1.5
~~~~~~~~~~~~~~
“If someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun.”
― The Dalai Lama, Seattle Times, May 2001
I knew testing was going to be a must along with alloy adjustments, etc. This helps and gives me a starting point.
Being an auto cartridge, I'm sure the Challege is trying to get repeatable expansion results and hope the alloy can withstand being feed without deformation.
This is my new MP 402-160 mold that I just heat treated by heating it to 350 degrees and letting it cool 3x. Doing so puts a panteen on the surface. New, the mold really shines and looks beautiful. MP molds are considered one of the best molds and comes from Slovenia. Molds comes with round pins, hex pins, and flat pins so you can cast flat round nose bullets. Service is very fast. I think it came in a week from the day I ordered it. As you can see, the pins slide out and the bullet drops out. Some make sure the pins are hot so the bullets drop out. Some rub pencil lead on the pins. As you can see, I bought the 2 cavity mold. I did so because it was cheaper, lighter than a 4 cavity, and I was thinking that the cast bullets would be more consistent. I plan on casting bullets with straight .22lr range lead and .22lr range lead +2% tin.
You'll find a binary alloy of lead/tin to be best for expansion. If you push them above 1200 fps somewhere between a 20-1 and 16-1 alloy will fill the bill. Besides expansion when using an auto loader is how well the softer alloy handles the trip from magazine to chamber without too much deformation or hanging up.
Larry Gibson
“Deficient observation is merely a form of ignorance and responsible for the many morbid notions and foolish ideas prevailing.”
― Nikola Tesla
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |