WOW Bryan! Good find, I'm going to hit them up tomorrow to see what they can do. Good thread with a little bit of detail, BC looks good, someone mentioned they would make a heck of a LR hunting bullet also!
Yep, a good find. However a 0.09" meplat is a bit on the 'blunt' side.
Richard Graves and the original Wildcats design, which as carried over to Paul's Wildcats were/are very high bc and terminally effective.
What is needed is a jacket design that will hold up to the rigorous bore environment of the 3 groove barrel.
MSUmarksman said: "Why does it seem like the heavy 277 bullets always have such long bearing surfaces? Someone needs to try to make a heavy 277 bullet with drive bands."
If my understanding is correct the original extreme 270 cartridge bullet design was the WC 169.5 gr. Richard then came upon some longer jackets and gave them a go.
These bullets serendipitously ended up weighing 195 grains. They shot well, Lilja bores, up to about 400 rounds in about half of the barrels. They never shot well in mine and began dusting at around the 400 round mark.
The same dies are used for any weight of bullet thus the heavier the bullet the longer the bearing surface. Considerations for maintaining weight with shortened bearing length is something folks like Bryan appreciate and present an understandable explanation.
"Drive" bands imply solid bullets which are finicky. A lot of necessary bullet flexibility, forming when shot, is lost with the solids. Thus aren't for the run of the mill hunter/shooter.
Jacket design/material make up seems to be the secret. The straight sided types don't cut it. Neither does the Corbin tapered jacket seem to meet the standard.
Nosler and Hornady seem to have the hardiest jacket designs. Hornady's 270 cal .277 140 gr Interlock BTSP and and all weight of Nosler, NAB/NBTs have passed all tests, accuracy and terminal performance @ 3600 FPS through an aged 277 - 8 twist - 3 groove bore. All that is needed is a bit more weight and bc and we'll have something to go to.
