As the subject says, is the MP 45-270SAA the same as the old Lyman 454424? I think I only need this in solid, but having the HP pins I don't need can't be a bad thing if it's otherwise the same mold.
Thanks!
As the subject says, is the MP 45-270SAA the same as the old Lyman 454424? I think I only need this in solid, but having the HP pins I don't need can't be a bad thing if it's otherwise the same mold.
Thanks!
I believe the MP you're referring to is a clone of the RCBS - 270SAA mold. Depending on your alloy, in solid form it will be anywhere from 275 to 285 grain. I'm sure someone with that mold will chime in here shortly to clarify.
I Have the RCBS version solid poured using #2 Lyman I get really nice 45C boolits weighing 274gr and most all boolits are within 2 tenths in weight. On my 30yrd range and from a rest, I get 1.5-3.0 groupings at 980fps from my well tuned Ruger BH 7.5 barrel.
I have both the molds your asking about. I took a picture of each bullet side x side but I can’t post the picture. If you’d like to see the comparison PM me your cell or email and I’ll send it to you. They really aren’t the same, I cast and shoot both frequently, they are my favorites for 45 colt.
I ordered the MP 45-270SAA last night, and by 2:06 a.m. I had a shipping alert from FedEx. If Thanksgiving doesn't mess up the schedule too much, I might be casting with it by Saturday.
Last edited by TXTad; 11-20-2023 at 12:52 PM.
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Even with FedEx saying there was an "operational delay" in Paris at Charles de Gaulle, the MP 45-270SAA mold arrived this morning, about 62 hours after I ordered it.
NRA Life member • REMEMBER, FREEDOM IS NOT FREE its being paid for in BLOOD.
Come visit my RUMBLE & uTube page's !!
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I had an MP clone of the Lyman 358439 (HP version of 358429). I also had the Lyman version of this mold. I took one boolit cast from the MP mold and stuffed it into the Lyman mold - perfect, snug fit. There was definitely some luck involved and I’d be surprised if a boolit from a second Lyman mold would fit tightly into the first Lyman mold… but it suggests that MP does an excellent job with their clones.
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 |