Lyman/Ideal 308-329 bullet mould

[Knifeman1988]

I Bought this bullet mold in single cavity and have made a few dozen rounds. I have the Sierra I6 ballistic program and I would like to compare it to my Lyman 314-299 one that i have been using in my matches. Bullet Specs are:

Diameter as cast: .3105'' (on driving bands)
Weight: 190 grs
Overall length: 1.209''
Nose diameter: .300''

It seems to have a really long ogive for a bullet with only 2 lube grooves and it is a gas check style not plain base.
I looked though all my books and cant find any data on this bullet.

Any and all help would be appreciated.

Thank you61607

[adrians]

Not much help i know, but i found this in an older ideal/lyman load book.

[Knifeman1988]

Ok well thank you, i just wish someone would have a B.C for this bullet..

[Le Loup Solitaire]

It resembles Lyman #311413 known as the squib bullet, but may be somewhat heavier. Loading data probably would be similar. The design of both is such that trying to drive either too fast will result in the bullet slumping off center in the bore and inaccurate shooting/grouping. So keep the MV in the moderate zone like 1600-1800fps and watch the grouping. If you are concerned with the weight...check any data that you can find for Lyman#311334 which has a straighter nose but weighs around 196 grains The squib design was/is popular with many shooters and they have gotten good results with it over the years. LLS

[Knifeman1988]

Ok cool deal, i normally shoot around 1650 to 1700 ftps every once and a while i get the idea to go up to 2000ftps
I will check out the data and take notes..
Thank you