Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Gunsmithing


Reply

Recommended chamber reamer for 300WM & premium factory hunting ammo??

 
LinkBack Thread Tools Display Modes
  #1  
Old 06-06-2014, 09:42 AM
Gold Member
 
Join Date: Aug 2006
Location: PA
Posts: 883
Recommended chamber reamer for 300WM & premium factory hunting ammo??

What reamer would you guys recommend for a 300WM hunting rifle build & premium factory hunting ammo in the 180-200 grain range???

Thanks!!
Reply With Quote
  #2  
Old 06-06-2014, 10:27 AM
SPONSOR
 
Join Date: Mar 2010
Location: on the Southern Plains
Posts: 1,204
Re: Recommended chamber reamer for 300WM & premium factory hunting ammo??

Quote:
Originally Posted by toader View Post
What reamer would you guys recommend for a 300WM hunting rifle build & premium factory hunting ammo in the 180-200 grain range???

Thanks!!
All you need is a SAAMI spced reamer.
__________________
"Shoots real good!": definition; it didn't blow-up in my face. Not everything can be fixed on an internet forum!
Reply With Quote
  #3  
Old 06-06-2014, 04:06 PM
Platinum Member
 
Join Date: Jul 2004
Location: Texas
Posts: 5,624
Re: Recommended chamber reamer for 300WM & premium factory hunting ammo??

Quote:
Originally Posted by shortgrass View Post
All you need is a SAAMI spced reamer.
+1

There are several good reamer manufactures to choose from. Manson, PT&G, Clymer to name a few.

Your Smith may have his favorite and as long as you don't get tricky, you will do fine.

J E CUSTOM
__________________
"PRESS ON"
Reply With Quote
  #4  
Old 06-06-2014, 06:34 PM
Platinum Member
 
Join Date: Jan 2008
Location: West Central Idaho
Posts: 1,136
Re: Recommended chamber reamer for 300WM & premium factory hunting ammo??

Quote:
Originally Posted by shortgrass
All you need is a SAAMI spced reamer.
Quote:
Originally Posted by J E Custom View Post
+1

There are several good reamer manufactures to choose from. Manson, PT&G, Clymer to name a few.

Your Smith may have his favorite and as long as you don't get tricky, you will do fine.

J E CUSTOM
J E
I want to run something by you and anyone else that cares to comment.

The SAAMI chamber dept for a 300 WM is 2.9545. The bullet I want to use is the 215gr Berger and my Mark V magazine will let the cartridge with a COAL of 3.6 work. This load with a COAL of 3.6 measures 2.835 at the ogive.

My question is could I have my smith use a SAAMI spaced reamer but instead of running it in to the 2.9545 have him stop short at 2.845 leaving me with .010 jump to start load development with? Would that .100 short be a bad deal or create any danger? Just been knocking this around in my head and would like the hear some opinions. Have not ran this by my smith yet.


Thanks.
__________________
Jim



There is something about the outside of a horse that is good for the inside of a man. Sir Winston Churchill.

Everything that is really great and inspiring is created by the individual who can labor in freedom. Einstein
Reply With Quote
  #5  
Old 06-06-2014, 07:33 PM
Platinum Member
 
Join Date: Apr 2003
Location: North Bend, Oregon
Posts: 1,266
Re: Recommended chamber reamer for 300WM & premium factory hunting ammo??

Stopping short will not change seating depth. It just makes the head space under spec. You may not be likely to get the bolt shut on the brass and part of the brass will be unsupported.

A mark 5 mag box should hold 3.7 OAL. Mine all do.
__________________
Build a man a fire and you heat him for a day.
Set him on fire and you heat him for life.

Only accurate rifles are interesting.

Gordy and Brady.
Reply With Quote
  #6  
Old 06-06-2014, 08:09 PM
SPONSOR
 
Join Date: Mar 2010
Location: on the Southern Plains
Posts: 1,204
Re: Recommended chamber reamer for 300WM & premium factory hunting ammo??

Don't even try to get 'fancy' if you'll be shooting factory loads. I'm currently "tusslin'" with one I built to minimum head space dimentions (GO gauge + a .002" steel shim and the bolt won't close). It'll except my handloads built using new Nosler brass, but won't except every factory loaded round I try. Some will chamber, some won't even come close to chambering. These factory rds. were manufactured by Remington & Winchester, and are of current manufacture. The chamber won't except full length re-sized brass fired in another rifle. No surprize there. There's just too much variation in the size of factory produced ammo to expect a tight, but in spec chamber, to except any and all of it. My solution to my problem, as my customer isn't a reloader,,,,,, increase head space toward the middle of the tolerance...... Not an 'ideal' situation, IMO. "Everyone wants to 'drive nails',,,,,,, not everyone is willing to custom taylor their ammo to their rifle to do so."
__________________
"Shoots real good!": definition; it didn't blow-up in my face. Not everything can be fixed on an internet forum!
Reply With Quote
  #7  
Old 06-06-2014, 08:56 PM
Platinum Member
 
Join Date: Jan 2008
Location: West Central Idaho
Posts: 1,136
Re: Recommended chamber reamer for 300WM & premium factory hunting ammo??

Quote:
Originally Posted by Hired Gun View Post
Stopping short will not change seating depth. It just makes the head space under spec. You may not be likely to get the bolt shut on the brass and part of the brass will be unsupported.

A mark 5 mag box should hold 3.7 OAL. Mine all do.
OK got it...stopping short makes everything short. Thanks for that. So I would need a reamer built if I want to get to the lands? With the 3.7 COAL the loads run through the rifle without problems?

My apologies the OP not trying to hijack the thread
__________________
Jim



There is something about the outside of a horse that is good for the inside of a man. Sir Winston Churchill.

Everything that is really great and inspiring is created by the individual who can labor in freedom. Einstein
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes



All times are GMT -5. The time now is 07:18 PM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC