WHERE TO CRIMP

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30calpal
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WHERE TO CRIMP

Post by 30calpal »

Hey RD, I have a couple of your molds designs by Lee, the 460-350 and the 379-235. NOE is making molds similar to them with 'conventional' grease grooves and can be had in HP. I've ordered a set of those as well. Where should I crimp these, 1st, 2nd or 3rd groove from the top??
Thanks.
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akuser47
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Re: WHERE TO CRIMP

Post by akuser47 »

Wouldn't u have to play close to the sammi specs of C.O.L.? Sorry I cannot be specific to the bullet but if you have the C.O.L. then that should get you into the ballpark.
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runfiverun
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Re: WHERE TO CRIMP

Post by runfiverun »

it's gonna depend on the gun,the throat,and the case that you use.
someone using hornady's super duper brass is gonna use a different crimp groove for the same oal.
someone using a single shot can use that same crimp groove but also use winchester or starline brass.
and someone using an 86 browning will again have a slightly different set up versus someone using the boolit in a marlin 450 or a 458 win mag double rifle.
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Ranch Dog
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Re: WHERE TO CRIMP

Post by Ranch Dog »

The bullet, 379-235, took in mind the wide range of chamber cuts and brass lengths available for the 38-55 Win. As the others have indicated, It will take some investigation on your part to see which groove to work with on your rifle and brass.
Michael
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Missionary
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Re: WHERE TO CRIMP

Post by Missionary »

Greetings
And sometimes you have to do a little brass length adjustment to get things perfect.
Most recently this past summer when I was up in ILLinois again I had to shorten my 50-95 brass just to get to a crimp groove. But it all worked out well. With a proper crimp in place the cast bullets would stay in place going through the tube and chambering.
So do not overlook a possible need to shorten some brass for a particular condition.
Mike in Peru
Way down south in Arequipa, Peru till June 2020.
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Re: WHERE TO CRIMP

Post by Ranch Dog »

Missionary wrote:So do not overlook a possible need to shorten some brass for a particular condition.
I've even had some "custom" Lee trimmers made for specific applications.
Michael
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