Results 1 to 4 of 4
-
February 5th, 2010, 12:08 AM #1
Primers Foreign vs Domestic interchangeable?
Another thread went somewhat off topic & the following came up in regard to shot shell primers:
Q: What is wrong with Rios? I'm new to reloading so I've never used their primers but I have used their factory ammo without any problem.
A (from member #1): The same thing that is probably wrong with Fiocchi. They are metric and are a little bit bigger in diameter than American primers. I have a MEC 9000 and other guys at the club have told me that MEC loaders will not seat them properly and they stretch the primer pocket so that American primers fall out.
A (from member #2): I had heard the same thing about Fiocchi primers (That they were just a tiny bit oversized and they would then make the primer hole bigger as to not accept other primers) So I have kept the hulls that I have used Fiocchi primers in and that is all I use those for. Problem solved.
My dad is a machinist so I had him break out the micrometer.
Key:
bottom = diameter measurement at the base just above the rim of the primer
top = diameter measurement at the firing end of the primer
ID = inside diameter of the primer hole in the hull.
All measurements are in thousands of an inch
All measurement were taken at several places around the radius so in some cases there is a range indicating that the primer or hole was not perfectly circular.
Rem 209 unfired primers:
measured five primers, of those:
four were 243 and one ranged between 242 - 244 bottom measurement.
Two were 238 & three were 240 top measurement.
Fiocchi unfired:
measured five, of those:
four were 244 one was 243 bottom
three were 243 two were 244 top
One example each of fired primers removed from the following hulls & the ID of the primer holes:
Winchester AA Hull (reloaded) with Rem 209 primer:
primer 244 bottom, 240 top
hull ID 242
Federal Top Gun hull w/ factory loaded primer
primer 238-240 bottom, 238-241 top
hull ID 237-242
RIO Star Team Professional hull w/ factory loaded primer
primer 246 bottom, 243-245 top
hull ID 244-245
Fiocchi Crusher hull w/ factory loaded primer
primer 244 bottom, 239-242 top
hull ID 241-245
Remington Gun Club hull w/ factory loaded primer
primer 240 bottom, 238-241 top
hull ID 236-241Let us never forget the sacrifice of those who have fought for us all.
-
February 5th, 2010, 09:22 AM #2Super Member
- Join Date
- Oct 2006
- Location
-
York,
Pennsylvania
(York County) - Posts
- 898
- Rep Power
- 4358
Re: Primers Foreign vs Domestic interchangeable?
Wholly Crap. You are a very thorough guy!
Outstanding info!! Thanks, 87thPVI....that info is outstanding!!
-
February 6th, 2010, 07:57 PM #3Grand Member
- Join Date
- Nov 2007
- Location
-
Chambersburg PA (Pure Appalachia),
Pennsylvania
(Franklin County) - Posts
- 1,649
- Rep Power
- 650477
Re: Primers Foreign vs Domestic interchangeable?
Thanks, 87. I am enlightened. I had no idea there was that much difference.
Flash"The life unexamined is not worth living." ....... Socrates
-
February 6th, 2010, 09:01 PM #4Super Member
- Join Date
- Sep 2008
- Location
-
Private,
Pennsylvania
- Posts
- 821
- Rep Power
- 8262019
Re: Primers Foreign vs Domestic interchangeable?
Nice job 87thPVI
Similar Threads
-
glock 21sf mag release interchangeable with standard release?
By TravisBickle in forum GeneralReplies: 3Last Post: May 25th, 2010, 03:06 PM -
Primers-Primers my Kingdom for some Primers
By Tequila Sunrise in forum GeneralReplies: 8Last Post: May 18th, 2009, 06:51 PM -
Win209 Primers for Small Pistol Primers
By wsmallri in forum GeneralReplies: 0Last Post: April 25th, 2009, 06:58 AM -
1000 small rifle primers 6 1/2 Remington Primers
By RJH245 in forum GeneralReplies: 0Last Post: February 21st, 2009, 02:28 PM -
Magnum primers vrs small pistol primers in .357
By Iron Sights in forum GeneralReplies: 6Last Post: January 9th, 2009, 06:22 PM
Bookmarks