The Firing Line Forums

Go Back   The Firing Line Forums > The North Corral > Lock and Load: Live Fire Exercises

Reply
 
Thread Tools
Old November 9, 2009, 02:45 PM   #1
enfield.303
Junior Member
 
Join Date: November 9, 2009
Posts: 3
Enfield .303 British bullet diameters

Hello -
I measured with calipers the following bullet diameters all intended for use in my Enfield .303:
Remington 180-grain flatnose soft-tip: about .3065"
Remington 174-grain Spitzer-shape UMC target round: about .309"
Federal 150-grain Spitzer-shape soft-tip: about .3115"

I measured these pre-loaded commercial rounds just in front of the brass;
does this amount of variation seem correct?

The only ones I have fired so far are the Remington 180-grain flatnose soft-tip: about .3065" and a couple went wide, perhaps .3065" is too small??
I measured the muzzle end of the barrel at .3033" with machinists gage pins, so it does not seem to be worn oversize.

Any insight from .303 users would be appreciated,
Thanks very much
enfield.303 is offline  
Old November 9, 2009, 04:01 PM   #2
fineredmist
Senior Member
 
Join Date: November 2, 2008
Location: Wethersfield, ct
Posts: 124
The Lyman #48 Reloading book shows a bullet dia. of .311 & .312 depending on the manufacturer. You reading is for the lands and the bullet diameter is determined by the grove diameter.
fineredmist is offline  
Old November 9, 2009, 09:20 PM   #3
gandog56
Senior Member
 
Join Date: May 31, 2006
Location: Mobile, Alabama
Posts: 964
Yep, normal diameter should be .311-312". I have heard of people who's bores were tight enough to shoot .308" bullets OK, but I personally don't in my Lee Enfield No.4 Mk.1.
__________________
Some people think I'm paranoid because I have guns. If I have guns, what do I have to be paranoid about?
gandog56 is offline  
Old November 10, 2009, 07:06 AM   #4
SwampYankee
Registration in progress
 
Join Date: November 1, 2008
Location: I can be found on a number of other forums.
Posts: 1,333
I shoot exclusively the Hornady .312 diameter bullets. The .311 diameter bullets generally have poor accuracy in my Enfields.
SwampYankee is offline  
Old November 10, 2009, 07:49 PM   #5
James K
Staff
 
Join Date: March 17, 1999
Posts: 19,968
To get the correct bullet diameter, you can't measure "just in front of the brass (case)." You have to pull the bullet and measure the portion of the bullet that is inside the case. That is the bearing area.

Jim
__________________
Jim K
James K is online now  
Old November 10, 2009, 10:47 PM   #6
T. O'Heir
Senior Member
 
Join Date: February 13, 2002
Location: Canada
Posts: 3,546
"...my Enfield .303..." Slug the barrel. Lee-Enfield barrels can measure between .311" and .315" and still be considered ok. Larger than .315" the barrel is shot out. A .311" bullet won't shoot worth beans through a .313" to .315" barrel.
Commercial bullets measure either .311" or .312". They won't be .3065" or .309". I believe Remington uses .311" bullets. Their site says .301", but that can't be correct.
Steve at .303british.com is seasonally making 200 grain .313" and .314" jacketed bullets.
__________________
Spelling and grammar count!
T. O'Heir is offline  
Old November 11, 2009, 05:21 PM   #7
red_baron
Junior Member
 
Join Date: November 8, 2009
Location: Washington State
Posts: 7
I've been using Hornady .311 for reloading and I haven't had any issues. brass is another story though, maybe its just my gun, but i never reload my brass more than twice. the action is too hot and the casings tend to separate.
Lee die sets come with some pretty clear and useful information about reloading your .303s, i also recommend going to the hodgeton website for more data
red_baron is offline  
Old November 11, 2009, 05:25 PM   #8
armoredman
Senior Member
 
Join Date: May 22, 2007
Location: Arizona
Posts: 3,853
Been using the 174gr Hornady FMJ/BT .3105 diameter in my No4Mk1* for some time now, great bullet, can get MOA with that load and iron sights.
__________________
http://czfirearms.us/ same original CZForum, new location.
armoredman is offline  
Old November 12, 2009, 09:38 AM   #9
SwampYankee
Registration in progress
 
Join Date: November 1, 2008
Location: I can be found on a number of other forums.
Posts: 1,333
If I neck-size my PPU brass it seems to last a long time (5-10 reloads). It doesn't matter what I do with S&B brass, it separates after 2 reloads. I have not bothered to buy anything more expensive since the PPU works so well. I get can 2-3 inch groups at 100 yards with the .312 Hornady on my 1943 BSA No.4 Mk 1 using the .312 Hornady (can't remember if it is 174 or 180 grain?). Of course, this is on a bag and being extremely careful with my technique. Have used both Accurate 2460 and H4895 with good luck. I would love to get some H335 but haven't found any yet (at the price I want to pay).
SwampYankee is offline  
Old November 12, 2009, 03:07 PM   #10
enfield.303
Junior Member
 
Join Date: November 9, 2009
Posts: 3
Thanks very much for the info everyone -
now I feel better about the .311 measurements I was getting; it seemed large at first but now .311 seems to be normal size,
Thanks again,
enfield.303
enfield.303 is offline  
Old November 13, 2009, 10:10 PM   #11
Falcon5NZ
Senior Member
 
Join Date: May 19, 2008
Location: Somewhere North of the Roaring 40's...Just
Posts: 273
The reason it is called .303 Brit and not .311 Brit is because it is .303 from land to land. Most barrels are measured groove to groove. Or at least thats how I was told
__________________
It is New Zealand's role to send out its bright young men and women to help run the rest of the world. And they go, not hating the country of their birth, but loving it. From this loving base they make their mark on the world.

Pro-1080 Poison and proud of it!!
Falcon5NZ is offline  
Old November 14, 2009, 11:18 PM   #12
James K
Staff
 
Join Date: March 17, 1999
Posts: 19,968
While bullet diameters for breech loading guns are the same diameter as the groove diameter of the barrel, the names given cartridges are not nearly so precise. For example, in the U.S. cartridges called .30 caliber and .308 use the same diameter bullet; one is called from the bore size, the other from the groove diameter. More confusing are cartridges named with almost no relation to any diameter. The .38-40 (.38 WCF) uses a .401" bullet. The 9mm Parabellum uses a .355" (9.02mm) bullet, but the 9mm Makarov uses a .363" (9.22mm) bullet. It is usually best to just accept cartridge names; trying to figure out reasons for the names leads to insanity.

Jim
__________________
Jim K
James K is online now  
Old November 15, 2009, 04:51 PM   #13
DVC45ACP
Junior Member
 
Join Date: June 10, 2009
Location: San Jose, CA
Posts: 12
I too prefer the proper, larger diameter bullets for my Enfield but if your particular gun shoots the .308-ish diameter bullets accurately enough for your needs, that's hard to argue with.
__________________
"An unarmed man can only flee from evil, and evil is not overcome by fleeing from it." - Jeff Cooper
DVC45ACP is offline  
Old March 13, 2010, 02:15 AM   #14
T. O'Heir
Senior Member
 
Join Date: February 13, 2002
Location: Canada
Posts: 3,546
"...feel better about the .311 measurements..." Won't matter if you have a .313" or larger barrel diameter.
__________________
Spelling and grammar count!
T. O'Heir is offline  
Old March 16, 2010, 12:28 AM   #15
AGATHA
Junior member
 
Join Date: March 15, 2010
Posts: 1
Its seems good and I hope you will keep it up
AGATHA is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 10:05 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.09312 seconds with 9 queries