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Mar 25th, 2012
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BUMPING THE SHOULDER #7071133
02/08/18 10:11 PM
02/08/18 10:11 PM
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Pittsburg, Texas
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DLALLDER Online content OP
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I have grown tired of guessing the amount of bumping the shoulder when sizing. How do the gurus do it and how do you measure the actual amount you have moved the shoulder? In the past I set die to touch the brass and then moved die in about 1/8 of a turn. Thanks







Re: BUMPING THE SHOULDER [Re: DLALLDER] #7071153
02/08/18 10:26 PM
02/08/18 10:26 PM
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jeffbird Online content
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Here is all you need. Very well worth the cost.

https://www.midwayusa.com/product/479704...with-comparator

Re: BUMPING THE SHOULDER [Re: DLALLDER] #7071176
02/08/18 10:45 PM
02/08/18 10:45 PM
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Ft. Worth
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garyrapp55 Online content
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That is the kit I got and it works great. Measure a fired case then adjust your die to the desired amount. Usually .001-.003"

Re: BUMPING THE SHOULDER [Re: DLALLDER] #7071199
02/08/18 11:00 PM
02/08/18 11:00 PM
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Lewisville, TX
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The Hornady kit is what I also use.

If you want to redneck engineer it, take a 40 S&W or 45 ACP case, and use that. I used one of these for a bit. Make sure the case mouth is perfectly round. Insert the case mouth of the rifle round into the case mouth of the 40 or 45 case. The pistol case mouth will sit on the shoulder of the rifle case. Take a few measurements of fired cases, which should all be the same. Then, size you brass in small increments until you get some shoulder movement. It works if you have a perfectly round pistol case.



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Re: BUMPING THE SHOULDER [Re: DLALLDER] #7071360
02/09/18 12:52 AM
02/09/18 12:52 AM
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Pittsburg, Texas
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DLALLDER Online content OP
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Chad, will the 40 or 45 case work on all cal. rifles?







Re: BUMPING THE SHOULDER [Re: DLALLDER] #7071366
02/09/18 12:54 AM
02/09/18 12:54 AM
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Posts: 513
Magnolia,TX
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Deans Online content
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I use Redding Competition shell holders and the Hornady comparator set.


Re: BUMPING THE SHOULDER [Re: DLALLDER] #7071394
02/09/18 01:12 AM
02/09/18 01:12 AM
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Lewisville, TX
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Originally Posted By: DLALLDER
Chad, will the 40 or 45 case work on all cal. rifles?


Just about.



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Re: BUMPING THE SHOULDER [Re: ChadTRG42] #7072226
02/09/18 07:12 PM
02/09/18 07:12 PM
Joined: Sep 2006
Posts: 24,075
Texas
kmon1 Offline
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Originally Posted By: ChadTRG42
Originally Posted By: DLALLDER
Chad, will the 40 or 45 case work on all cal. rifles?


Just about.


Those work for lots of cases. Some others I have used 9mm, 38 special and 32 H&R Mag. On the SAAMI web page you can find the datum point on the shoulder used for measuring head space. The cartridge will not match it exactly but I like to choose a cartridge case close to that that measurement value is. Remember we are looking for the difference between fired and resized so using a case will not match SAAMI but doesn't matter is we are looking to bump back the shoulder .002 or .004 inches

Re: BUMPING THE SHOULDER [Re: DLALLDER] #7072284
02/09/18 08:05 PM
02/09/18 08:05 PM
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Frisco, Texas
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Buzzsaw Online content
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hey Chris, great to see you on the forum


"I ain't here for a long time, I'm here for a good time"
King George Strait


Re: BUMPING THE SHOULDER [Re: kmon1] #7072315
02/09/18 08:28 PM
02/09/18 08:28 PM
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Texas
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Originally Posted By: kmon1
Originally Posted By: ChadTRG42
Originally Posted By: DLALLDER
Chad, will the 40 or 45 case work on all cal. rifles?


Just about.


Those work for lots of cases. Some others I have used 9mm, 38 special and 32 H&R Mag. On the SAAMI web page you can find the datum point on the shoulder used for measuring head space. The cartridge will not match it exactly but I like to choose a cartridge case close to that that measurement value is. Remember we are looking for the difference between fired and resized so using a case will not match SAAMI but doesn't matter is we are looking to bump back the shoulder .002 or .004 inches


Thanks for sharing was about to ask about using 9mm.


It's hell eatin em live
Re: BUMPING THE SHOULDER [Re: ChadTRG42] #7072330
02/09/18 08:42 PM
02/09/18 08:42 PM
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Originally Posted By: ChadTRG42
If you want to redneck engineer it, take a 40 S&W or 45 ACP case, and use that. I used one of these for a bit. Make sure the case mouth is perfectly round. Insert the case mouth of the rifle round into the case mouth of the 40 or 45 case. The pistol case mouth will sit on the shoulder of the rifle case. Take a few measurements of fired cases, which should all be the same. Then, size you brass in small increments until you get some shoulder movement. It works if you have a perfectly round pistol case.


Dang Chad, I didn't know your neck was that red! I redneck stuff too but that never even crossed my mind.

Re: BUMPING THE SHOULDER [Re: garyrapp55] #7072331
02/09/18 08:45 PM
02/09/18 08:45 PM
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Wolfe City, TX
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FiremanJG Online content
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Originally Posted By: garyrapp55
Originally Posted By: ChadTRG42
If you want to redneck engineer it, take a 40 S&W or 45 ACP case, and use that. I used one of these for a bit. Make sure the case mouth is perfectly round. Insert the case mouth of the rifle round into the case mouth of the 40 or 45 case. The pistol case mouth will sit on the shoulder of the rifle case. Take a few measurements of fired cases, which should all be the same. Then, size you brass in small increments until you get some shoulder movement. It works if you have a perfectly round pistol case.


Dang Chad, I didn't know your neck was that red! I redneck stuff too but that never even crossed my mind.


Pffft, Chad is an old hand with bailing wire and duct tape.



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Re: BUMPING THE SHOULDER [Re: DLALLDER] #7072349
02/09/18 08:58 PM
02/09/18 08:58 PM
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Lewisville, TX
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<<< MacGyver was my idol!



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