Lyman G, H bullet sizing dies.

dahermit · October 29, 2011, 01:33 PM

They have done it to me again. From the actual size of the Lyman cast bullet sizing dies that I have gotten recently (three in a row), they are running on the large size. About .001 over what they are stamped. I think that I will just order one-size smaller than I actually want next time. I do not know if RCBS is the same way...but RCBS dies are 7.00 more expensive. Can anyone who has purchased more than one (so we know that it is not a singular example), RCBS cast bullet lube/sizing die attest to if the actual size matches their stamp on the die?

Vance · October 29, 2011, 07:50 PM

My Lyman .357 sizing die actually sizes to .3565 . Well according to my digital calipers anyway.

GP100man · October 29, 2011, 08:40 PM

Actually the bullet may be springing back .001"

My 358 die is dead on with softer alloy ,but harder the alloy the bigger .

dahermit · November 1, 2011, 11:42 AM

WHOOPS!!! I pushed a .50 round, pure-lead ball through my Lyman .451 bullet size/lube die. It measured .451...it was bullet spring-back. My apologies to Lyman.

October 29, 2011, 01:33 PM	#1
dahermit Senior Member Join Date: October 28, 2006 Location: South Central Michigan...near Posts: 6,501	Lyman G, H bullet sizing dies. They have done it to me again. From the actual size of the Lyman cast bullet sizing dies that I have gotten recently (three in a row), they are running on the large size. About .001 over what they are stamped. I think that I will just order one-size smaller than I actually want next time. I do not know if RCBS is the same way...but RCBS dies are 7.00 more expensive. Can anyone who has purchased more than one (so we know that it is not a singular example), RCBS cast bullet lube/sizing die attest to if the *actual* size matches their stamp on the die?

October 29, 2011, 08:40 PM	#3
GP100man Senior Member Join Date: August 1, 2007 Location: Tabor City , NC. Posts: 1,969	Alloyies Actually the bullet may be springing back .001" My 358 die is dead on with softer alloy ,but harder the alloy the bigger . __________________ GP100man

October 29, 2011, 07:50 PM	#2
Vance Senior Member Join Date: January 16, 2011 Location: North Bend, OR Posts: 743	My Lyman .357 sizing die actually sizes to .3565 . Well according to my digital calipers anyway.

November 1, 2011, 11:42 AM	#4
dahermit Senior Member Join Date: October 28, 2006 Location: South Central Michigan...near Posts: 6,501	WHOOPS!!! I pushed a .50 round, pure-lead ball through my Lyman .451 bullet size/lube die. It measured .451...it *was* bullet spring-back. My apologies to Lyman.