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Hi All,

Lyman has data published for this bullet cast with Lyman #2 alloy with velocity ranging from just under 1600 to over 1900 fps. Lyman states they tested the loads with the 375248 in a 20" Win 94 barrel. I am curious how this bullet has worked for others in the Marlin 375 when properly sized.

thanks

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I haven't tried that mold but it looks close to the Lee 250gr plane base and the RD 235 bullets I got from and nice gentleman on this forum and they both shoot very well from my M375 at .380" , with Lyman's 49th starting load of IMR 4198 they where in the 1500-1600 fps range.
 

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Are they not a bit oversized at .380? That is a 38-55 size, my M-375's have .376 grooves and shoot the .377 cast bullet the best. The larger bullets will cause leading in my rifles after long shooting sessions.
 

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I use that Lyman bullet sized .379 in my M375 and they shoot well. I am only using 9.5 grains of Unique.
 

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I use that Lyman bullet sized .379 in my M375 and they shoot well. I am only using 9.5 grains of Unique.
I use the Lee 250gr sized a .379 in my Marlin 375 and I size it to .377 in my JES rebore. My rifles also like Unique, but I am rationing right now so I have switched to 12grs of AA#7.
 
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