Home | Ezine | Forums | Links | Contact
NitroExpress.com: 450 BPE Brass Fitment Issues

View recent messages : 24 hours | 48 hours | 7 days | 14 days | 30 days | 60 days | More Smilies


*** Enjoy NitroExpress.com? Participate and join in. ***

Double Rifles, Single Shots & Combinations >> Double Rifles

3DogMike
.400 member


Reged: 29/01/15
Posts: 1404
Loc: Western Slope, Colorado USA
Re: 450 BPE Brass Fitment Issues
      18/09/19 04:41 AM

Quote:

Thanks all for the recommendations...I’ve tried sizing w/out shellholder and didn’t have any luck. I’ve ordered a .510 lee bullet sizing die that another guy used with the same problem. Hopefully this will smooth things out enough to chamber.



Not sure what a .510” bullet sizing die will accomplish? You do not for sure know that bullet/neck fit is the problem.....

Certainly seems to me that the prudent course of action is either a chamber cast or lampblack a sized case with bullet seated to really determine where the problem is. Otherwise you are flying in the dark.
Base diameter of a .450 3 1/4 from various sources is approximately .544”-.548” depending upon manufacturers tolerances, and if the case head/base diameter is just a skosh too large a machinist could easily make you a sizing ring to swage the offending area down a couple of thousandths.

I personally would not do it to a fine double rifle, but some guys would just get a SAMMI/CIP spec chamber reamer and relieve the chambers so as to fit current Hornady brass.

Just my 2˘

- Mike

EDIT: Just measured the case heads on both new Hornady brass and some 1920’s vintage .450 3 1/4 NfB.
Hornady = .543in front of the rim and .478” at neck with standard .458” jackets bullet seated
Kynoch original “Nitro for Black” = .542” in front of the rim and .490” at neck as factory loaded with original PP bullet.



--------------------
"Here's to killing people you don't like with people you do"

"Will Rogers never met a fighter pilot"
- Anon

“Always carry a flask of whiskey in case of snakebite, and furthermore always carry a small snake."
-- W. C. Fields

Post Extras Print Post   Remind Me!     Notify Moderator


Entire topic
Subject Posted by Posted on
* 450 BPE Brass Fitment Issues vandeusenps 17/09/19 11:39 AM
. * * Re: 450 BPE Brass Fitment Issues dracb   17/09/19 05:22 PM
. * * Re: 450 BPE Brass Fitment Issues vandeusenps   17/09/19 08:04 PM
. * * Re: 450 BPE Brass Fitment Issues 8borerifle   17/09/19 10:01 PM
. * * Re: 450 BPE Brass Fitment Issues 3DogMike   17/09/19 12:08 PM
. * * Re: 450 BPE Brass Fitment Issues vandeusenps   17/09/19 12:42 PM
. * * Re: 450 BPE Brass Fitment Issues DoubleD   17/09/19 10:34 PM
. * * Re: 450 BPE Brass Fitment Issues Huvius   18/09/19 02:53 AM
. * * Re: 450 BPE Brass Fitment Issues degoins   18/09/19 02:57 AM
. * * Re: 450 BPE Brass Fitment Issues vandeusenps   18/09/19 03:07 AM
. * * Re: 450 BPE Brass Fitment Issues 3DogMike   18/09/19 04:41 AM
. * * Re: 450 BPE Brass Fitment Issues CptCurlAdministrator   18/09/19 08:08 AM
. * * Re: 450 BPE Brass Fitment Issues 3DogMike   18/09/19 09:24 AM
. * * Re: 450 BPE Brass Fitment Issues DarylS   18/09/19 09:52 AM
. * * Re: 450 BPE Brass Fitment Issues vandeusenps   18/09/19 11:09 AM
. * * Re: 450 BPE Brass Fitment Issues Wayne59   18/09/19 11:38 AM
. * * Re: 450 BPE Brass Fitment Issues 3DogMike   18/09/19 12:08 PM
. * * Re: 450 BPE Brass Fitment Issues OahuKaneohe   18/09/19 12:53 PM
. * * Re: 450 BPE Brass Fitment Issues CptCurlAdministrator   18/09/19 07:51 PM
. * * Re: 450 BPE Brass Fitment Issues vandeusenps   18/09/19 08:34 PM
. * * Re: 450 BPE Brass Fitment Issues CptCurlAdministrator   19/09/19 12:45 AM
. * * Re: 450 BPE Brass Fitment Issues degoins   19/09/19 02:48 AM
. * * Re: 450 BPE Brass Fitment Issues OahuKaneohe   19/09/19 05:01 AM
. * * Re: 450 BPE Brass Fitment Issues OahuKaneohe   19/09/19 05:07 AM
. * * Re: 450 BPE Brass Fitment Issues vandeusenps   20/09/19 09:10 PM

Extra information
0 registered and 134 anonymous users are browsing this forum.

Moderator:  CptCurl 



Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 9928

Rate this thread

Jump to

Contact Us NitroExpress.com

Powered by UBB.threads™ 6.5.5


Home | Ezine | Forums | Links | Contact


Copyright 2003 to 2011 - all rights reserved