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21st Century Shooting New Expander Mandrels .0005" Increments!

Pete thanks for the size printed on them so us old guys can just pick them up and not have to measure! Had to print sizes on all the ones I have just so I haven't got to keep checking them.

Joe Salt
Our new laser makes this possible!
 
Need;
0.3355"
0.3350"
0.3345"
0.3340"

Can you overnight so I can work up some test loads and hit the range Sunday?

Kidding (only a little), but definitely counting on you to post when available for ordering.

I've come to the conclusion that 0.002" is just not enough for the .338LM.

Got 'em along with the extra long expander die body.

@Petros284, would you quit screwing around with that laser engraver? We're going to need you to stay late tonight, they're backed up in shipping and we need to get all those orders out before anyone can go home.

:cool:

Thanks!
 
Got 'em along with the extra long expander die body.

@Petros284, would you quit screwing around with that laser engraver? We're going to need you to stay late tonight, they're backed up in shipping and we need to get all those orders out before anyone can go home.

:cool:

Thanks!
But the laser is so cool!
 
Just tried to order a couple , in needed sizes , and my computer is not co-operating this morning . I'll call it in Monday morning . Problem solved . Thanks to Petros 284 for getting the word out , and dealing with all the inquiries .
 
Just tried to order a couple , in needed sizes , and my computer is not co-operating this morning . I'll call it in Monday morning . Problem solved . Thanks to Petros 284 for getting the word out , and dealing with all the inquiries .
Glad to help! John has wanted to have these out for a while but we’ve been busy and there was not a good way to mark them in an efficient manner. The laser in-house has made this Possible! John is the guy to thank for these! Also just to let you know we have a companion product to these about to be let out and released! I’ll let you know!
 
Just ordered the one I need , ( .3075 ) and spoke with a very nice lady at 21st . She explained to me that the $8.00 shipping fee was for priority mail cost , so there would be a tracking number on the pkg. Makes sense to me ....I only ordered one mandrel , but it someone was ordering several , or a full set , that's a lot of money if it gets "lost" in the mail . Great people to deal with . :D
 
Just ordered the one I need , ( .3075 ) and spoke with a very nice lady at 21st . She explained to me that the $8.00 shipping fee was for priority mail cost , so there would be a tracking number on the pkg. Makes sense to me ....I only ordered one mandrel , but it someone was ordering several , or a full set , that's a lot of money if it gets "lost" in the mail . Great people to deal with . :D


Thanks for your order. I wish we were currently set up for a reliable way to ship at a cheaper cost. Many of the larger companies negotiate shipping costs. We pay the same as anyone else to reliably ship. We will look into cheaper options for the future though.
 
I observed erratic velocity ES with my .338LM and theorized it might be due to insufficient neck tension. Using the 0.3350" mandrel got my groups from .61 MOA previous best down to .51 MOA new best. I bought 0.3340" to 0.3355." I guess my rifle just likes that .003" interference fit.

It's great to have a theory. It's better to be able to prove or disprove it.

Happy camper with the mandrels.
 
I observed erratic velocity ES with my .338LM and theorized it might be due to insufficient neck tension. Using the 0.3350" mandrel got my groups from .61 MOA previous best down to .51 MOA new best. I bought 0.3340" to 0.3355." I guess my rifle just likes that .003" interference fit.

It's great to have a theory. It's better to be able to prove or disprove it.

Happy camper with the mandrels.
Glad to hear this! This is what we like to hear!
 
Glad to help! John has wanted to have these out for a while but we’ve been busy and there was not a good way to mark them in an efficient manner. The laser in-house has made this Possible! John is the guy to thank for these! Also just to let you know we have a companion product to these about to be let out and released! I’ll let you know!

Has the companion product been announced? Thanks for the updates, I ordered a set of these along with just about the rest of your entire product line, hah. Can't wait for it all to ship!
 

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