I have a 510 Whisper I am looking for a new bullet mold for. Currently I have a 512-975GC from CBE, which is a great mold however the nose is so short that it doesn't feed as well as I would like it to from the AICS magazine. My barrel is a 6 groove, 1:10 twist.
Currently my max OAL with the 975 boolit is 3.075". Projectiles feed best from these mags loaded at 3.4-3.6".
I've attached a photo of the profile I think I am looking for. Is it a bad idea to have this shaped projectile? I'll be editing this thread to add measurements and specs as I can get them. Any recommendations on a good manufacturer of a mold like this? These will all be shot subsonic.
The 2nd picture shows my PC'D 975 boolit, a couple 690 grain AP and M2 ball, and a 308cal 150 grain in a 30-50 Cal sabot.
Hopes:
1) Be 0.512" as cast
2) Be 700-850 grains
3) Able to be powder coated
The CBE 512-975GC is 2.035" long. My guns lands are 0.500" and grooves are 0.510", and the 0.500" part of this boolit starts at 0.655" from the meplat. The nose diameter is 0.504" after powdercoating. The meplat diameter is 0.188".
The projectile I am really trying to model this after is the mix of the 750 Amax and 690 Grain M2 ball, with just a longer base and more mass. I feel once I get the nose shape right, I can add more base to the design to get the mass I am looking for.
The M2 balls point less than 0.500" is 1.150" long, and the 750 Amax point is 1.475" long. The meplat on the M2 is 0.130" and the Amax is 0.100".
Probably should discuss the use of this one. Mostly to kill paper, however the dream of hog hunting was the main purpose of getting into 510 Whisper. I figured once I have a good hog killer, I will have to schedule a trip.
The last two photos are of my new accurate 50 Cal mold used for my beowulf.