
Now for the update. I successfully made a G7L-284-180gr last night on a J4 jacket.

Exciting hey...just like the thousands of others.

Same everything pretty much, weight, ogive radius, ogive length, meplat etc. Except for the length. Nominal length for the standard G7L-284-180gr is +1.500" (within 'as supplied' J4 jacket tolerances). This single prototype came out at just under 1.370".
I'll let you roll that around in your heads for while.

Obviously still early days yet without any accuracy or velocity testing, but I've been kickin' this door for a while now. At least I know the door opens now.