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Old August 1, 2011, 09:48 AM   #31
Senior Member
Join Date: February 21, 2002
Location: Transplanted from Montana
Posts: 2,311

Here is the data from Hodgdon for 243.
100 gr SPR BTSP*__IMR 4350 __ Start 38.5gr____ Max 42.0gr __Vel 2958 fps*

I find it interesting that your barrel
Chronographed velocity was 3150 fps from a 22 inch M70 pre 64 FWT.
while the Hodgdon 24" barrel got substantially less velocity using the same load.
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