The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Big Bores 400 Whelen QuestionGo | New | Find | Notify | Tools | Reply | |
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For whatever reason, there are differences between what my chamber dimensions are and the Ch4d 400 Whelen G&H die set. The barrel on my rifle is now marked 400 Whelen Petrov. Yes, I did trim the qual cart brass to 2.5 inches. I verified that the sized brass would not chamber due to the brass shoulder dimension being greater than .4565. At the time I didn't think it would be necessary to get a dwg of the reamer prior to the job since the Petrov reamer dimensions are well known. Reloaded fireformed brass is working OK, so far. | |||
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Have you been able to fire any of the 35 Whelan brass loads? If so you can take some measurements . Might need to get a bigger reamer to clean up the chamber so you can get the full shoulder diameter. . Another gunsmithing challenge. I feel for you!!! Phil Shoemaker : "I went to a .30-06 on a fine old Mauser action. That worked successfully for a few years until a wounded, vindictive brown bear taught me that precise bullet placement is not always possible in thick alders, at spitting distances and when time is measured in split seconds. Lucky to come out of that lesson alive, I decided to look for a more suitable rifle." | |||
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Got any pics???? We loves them pictures!   Phil Shoemaker : "I went to a .30-06 on a fine old Mauser action. That worked successfully for a few years until a wounded, vindictive brown bear taught me that precise bullet placement is not always possible in thick alders, at spitting distances and when time is measured in split seconds. Lucky to come out of that lesson alive, I decided to look for a more suitable rifle." | |||
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I have a suggestion to anyone that wants to become a wildcatter..First you build the gun, then you send 3 fired cases to RCBS or whoever and have your dies made to fit your gun..Not even a bad idea on any caliber. BTW I have had problems in the past with C&H, not willing to work out those kinds of problems in that he is right and everyone else is wrong..Happened to me with a .470 finally bought a set of RCBS dies, problem solved. Ray Atkinson Atkinson Hunting Adventures 10 Ward Lane, Filer, Idaho, 83328 208-731-4120 rayatkinsonhunting@gmail.com | |||
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OK, here's a picture of the 400 Whelen brass. From left to right: fireformed 35 whelen, fireformed qual cart, sized qual cart brass per the CH4D G&H sizer die. The shoulder difference is about .001 inch between the fireformed and sized brass. The shoulder on the fireformed brass is plenty adequate so I do not plan on revising the chamber using a different reamer. As mentioned in previous posts the qual cart brass as sized by the die will not chamber unless the shoulder diameter is reduced to fit the chamber.  | |||
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Have to agree with Ray on this one. Too many cooks in the kitchen. Not knowing where the reamer came from nor the exact dimensions.  I've built a number of wildcats. Like Ray I get the reamer form the brass and THEN get the dies made to match my brass. Just too many people saying they have the 400 Whelen with too many version. Next time if you think of it brass bases along a straight edge makes it easier to see the differences. As usual just my $.02 Paul K | |||
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Too many cooks? https://m.youtube.com/watch?v=QrGrOK8oZG8 577 BME 3"500 KILL ALL 358 GREMLIN 404-375 *we band of 45-70ers* (Founder) Single Shot Shooters Society S.S.S.S. (Founder) | |||
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Great pic!! Major bummer about the chamber but, if it works the way you want it to. Then your gtg. Phil Shoemaker : "I went to a .30-06 on a fine old Mauser action. That worked successfully for a few years until a wounded, vindictive brown bear taught me that precise bullet placement is not always possible in thick alders, at spitting distances and when time is measured in split seconds. Lucky to come out of that lesson alive, I decided to look for a more suitable rifle." | |||
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