Dimensions of 2 cavity Lyman and RCBS blocks needed

[Onty]

Hi folks, I am away from home and need your help. Getting involved into ˝top secret project˝ and need following dimensions of 2 cavity Lyman and RCBS blocks:

http://i1096.photobucket.com/albums/g337/Onty50/Mould.jpg


Please post yours even if you see that somebody already posted them, we might have situation that more than one block size was used by each manufacturer. Results will help to create something new and exciting for many.

Thanks to all!

[old turtle]

Onty, I measured two blocks. One is marked Lyman and the other marked Ideal which is the older blocks from Lyman. My measurements are as follows:

Lyman Ideal
A 1.38 1.38
B 1.48 1.485
C 1.23 1.233
D 0.589 0.585
F 0.310 0.310 See my note.
G 0.808 0.754

I do not trust my dial indicator on these inside measures it might be as much as .005 more.
I hope others reply as a check on my measurements. Lyman may have made other old blocks differently but they be very old. Good Luck

[Onty]

Onty, I measured two blocks. One is marked Lyman and the other marked Ideal which is the older blocks from Lyman. My measurements are as follows:

Lyman Ideal
A 1.38 1.38
B 1.48 1.485
C 1.23 1.233
D 0.589 0.585
F 0.310 0.310 See my note.
G 0.808 0.754

I do not trust my dial indicator on these inside measures it might be as much as .005 more.
I hope others reply as a check on my measurements. Lyman may have made other old blocks differently but they be very old. Good Luck

Thank you again, that is good enough?


Anybody has RCBC 2 cavity blocks?

[mrbill2]

Rcbs 30-180-fn
a-1.250
b-1.492
c-1.740
d-.600
f-.304
g-.650

[Onty]

Rcbs 30-180-fn
a-1.250
b-1.492
c-1.740
d-.600
f-.304
g-.650

Tanks Bill!

[John J]

RCBS 32-098 wc

A 1.254
B 1.593
C 1.741
D 0.590
F 0.030
G 0.640

Lyman 358-345

A 1.368
B 1.481
C 1.233
D 0.588
F 0.310
G 0.774

John J

[Alchemist]

Onty

I measured an Ideal mould that is old enough that it doesn't have vent lines, as well as an RCBS that is from the late 70's...maybe early 80's. It came in the white slip top cardboard box. I got it about 1982. Here goes.

Ideal RCBS

A 1.375 1.254
B 1.479 1.497
C 1.238 1.734
D .585 .600
F .310 . 299
G .763 .644

HTH

[JIMinPHX]

They vary a little from block to block, but these dimensions should be fairly typical -