RCBS Bix Max A4 press bushing thread size?

[LVLAaron]

I'm making a custom bushing for a member here who has an RCBS Big Max A4 - Can someone confirm the thread size?

I believe it is 1.5"-12

But I have seen some forum posts (not here) that say it's 1-3/8, 12tpi.

 

[jcm800]

Frame
2 09161 Bushing 1 3/8"-12 to 7/8"-14

 

[LVLAaron]

Thank you!

 

[Alan Warner]

I'm making a custom bushing for a member here who has an RCBS Big Max A4 - Can someone confirm the thread size?

I believe it is 1.5"-12

But I have seen some forum posts (not here) that say it's 1-3/8, 12tpi.

View attachment 1479021

Aaron
You might consider opening that up to 1.5-12
Makes that press much more usable. Sizing
50 cal stuff on that press works well.

 

[LVLAaron]

Aaron
You might consider opening that up to 1.5-12
Makes that press much more usable. Sizing
50 cal stuff on that press works well.

Unfortunately, I don't have the press in hand... I'm just facilitating the bushing.

 

[Alan Warner]

Unfortunately, I don't have the press in hand... I'm just facilitating the bushing.

Just a thought. I've never seen or handled a 1-3/8 - 12 die. I'm old, but maybe not old enough.

 

[LVLAaron]

The die in question is 1.25-12.

Not enough clearance for a 1-3/8 shim. Again, not my press.. and I'm sure shipping the whole press would be a nightmare

 

[M-61]

Just a thought. I've never seen or handled a 1-3/8 - 12 die. I'm old, but maybe not old enough.

I’m with you. I do have an A-4 which I love, Bought it new. In the back of my mind something tells me the original Hollywood Senior had a strange die size requiring their dies. Oh course a bushing would solve the problem and get you back to the now standard size. Always wanted one but there was a company that took Hollywood Gun shop over and their presses are not as well made so on the rare occasion you might see one for sale you really have to know what you’re buying.