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Author Topic: crimp on 200 swc  (Read 502 times)

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Offline Jim 44-40

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crimp on 200 swc
« on: March 03, 2006, 01:01:03 AM »
guys,I picked up a 452460 mold,cast 200SWC. If I use it in my 45colt do i have to crimp over the bullet shoulder or using Lee crimp die can I crimp in top part of lube groove?
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Offline John Traveler1

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.45 Colt crimp
« Reply #1 on: March 03, 2006, 04:24:13 AM »
Either crimp is acceptable, but for that big .45 Colt case, a bit more uniform ignition is had by crimping into the crimping groove.  Light powder charges are recommended, as "magnumizing" of this weight bullet can result in instability and terrible accuracy.
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Offline Larry Gibson

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Re: crimp on 200 swc
« Reply #2 on: March 03, 2006, 06:59:12 AM »
Jim 44-40

Concur with John. I shoot a large amount (have 6 cavity mould) of 190/200 gr SWCs in the .45 Colt including having used the Lyman 452460.  I don't roll crimp at all but just straighten out the case mouth. Bullets are seated so case mouth covers 1/2 of front driving band. I use either bullet over 7.5 gr Bullseye for use in a Uberti revolver and a Rossi M92 rifle. Velocity is 930 fps in the 5 1/2" revolver and 1210 fps in the 24" M92. Accuracy is excellent.  As John said much above those velocities and accuracy goes south.

A lighter revolver only load is 6.5 gr of Bullseye for 837 fps in the Uberti. That load does not obturate the cases to seal the chamber in the M92 and I get gas blow back into the face. It is a great load in the revolver though.

Larry Gibson
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Offline Jim 44-40

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200gr 45Colt load
« Reply #3 on: March 05, 2006, 04:06:56 AM »
Found the time to work on a load for my Ruger 45 with 200gr SWC. With a BHN 10,.452 and 6.9grs Green Dot and a OAL of 1.527'. I used a Lee factory crimp die to put a light crimp over bullet shoulder. Book says 936fps and 10,600CUP. There was no gas blowback with this load. Will post groups and such later.. Have a great day{ Sunny daya ahead]
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Offline oliver77

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crimp on 200 swc
« Reply #4 on: March 05, 2006, 02:44:29 PM »
I shoot quite a few of the 452460 in my .45 Colts. I sink them just below the front driving band and roll crimp. My best accuracy came after starting to load this way. 8-11 gr Unique  has been very acurate and recoil the wife can handle. My EAA Colt clone in .45 Colt shoots very small groups with this bullet over 10 gr Unique. I have some Red dot and Bulls eye loads to that are more economical and a blast to shoot.  Jay
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