Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone here shoot the 303 calibers?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="atl5029" data-source="post: 1386325" data-attributes="member: 84273"><p>one thing you might want to do is slug your bore using a 32 cal hornady muzzle loader ball and measure the actual minimum bore diameter you have. Tolerances on some of those old 303 barrels can be pretty loose. The hornady bullets are .312 diameter. My mosin slugged out at .314. I figure the round nose shot so much better because they have a much longer bearing surface than the HPBT which my have been able to catch the rifling better. The bullets that shoot well for you likely have a longer bearing surface as well. Just a thought you might want to investigate.</p><p></p><p>If I were you, if the rifle was sporterized well and not "bubba'd" in that it handles well and looks good, I'd pull the barrel and get a new one with the same contour. Either use a 308 bore with the same chamber, and load 308 bullets instead of 303, or chamber it in a more modern round suitable for the M91 action. I'm not sure off the top of my head how the pressures compare to the 7.65x53, but maybe the 300 or 250 Savage might suit you well.</p></blockquote><p></p>
[QUOTE="atl5029, post: 1386325, member: 84273"] one thing you might want to do is slug your bore using a 32 cal hornady muzzle loader ball and measure the actual minimum bore diameter you have. Tolerances on some of those old 303 barrels can be pretty loose. The hornady bullets are .312 diameter. My mosin slugged out at .314. I figure the round nose shot so much better because they have a much longer bearing surface than the HPBT which my have been able to catch the rifling better. The bullets that shoot well for you likely have a longer bearing surface as well. Just a thought you might want to investigate. If I were you, if the rifle was sporterized well and not "bubba'd" in that it handles well and looks good, I'd pull the barrel and get a new one with the same contour. Either use a 308 bore with the same chamber, and load 308 bullets instead of 303, or chamber it in a more modern round suitable for the M91 action. I'm not sure off the top of my head how the pressures compare to the 7.65x53, but maybe the 300 or 250 Savage might suit you well. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone here shoot the 303 calibers?
Top