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
Reloading
Which press?
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="Bart B" data-source="post: 514096" data-attributes="member: 5302"><p>I'm not referring to benchrest shooters' tools or chambers. I'm talking about other folks using dies such as Redding or RCBS full length bushing dies and barrels with SAAMI spec'd chambers with .004" to .005" neck clearance. The best of these shoot somewhat better than what benchresters end up winning matches with and once in a while setting a record.</p><p></p><p>For example, here's a 20-shot group fired at 800 yards with full length sized cases in a SAAMI chamber with bullet runout up to .003". Compare its mean radius (about 1.1" or 2.2" 5-shot group average) to any long range benchrest aggregate of three or four 5- or 10-shot groups:</p><p><img src="http://farm4.static.flickr.com/3614/3394146444_2d5f4c3e52.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>I've made 15-shot groups with 30 caliber magnums at 1000 yards with a mean radius of about 2.1 inch each. Built on a post-64 Win. 70 action at that. One was with full length sized cases shooting 190-gr. bullets and the other was from new cases neck only sized with virgin brass shooting 200-gr. bullets. Look up the current three 10-shot agg. benchrest record and see how it compares. A 2.1 inch mean radius statistically equates to about a 4.2 inch group average at 1000 yards.</p><p></p><p>Did you know that Sierra's been QA testing their bullets in rail guns firing bullets from full length sized cases since the 1950's? I doubt anyone gets better accuracy with them than they do. Their best match bullets go into groups measured in the one's; just like benchresters do.</p><p></p><p>I'm not using the smallest 5-or 10-shot group fired for comparison, but there's some that have been fired from full length sized cases that put the best that benchresters tout as records to shame. Expecially when an old pre-'64 classic Winchester 70 action was used conventionally epoxy bedded in a wood stock.</p></blockquote><p></p>
[QUOTE="Bart B, post: 514096, member: 5302"] I'm not referring to benchrest shooters' tools or chambers. I'm talking about other folks using dies such as Redding or RCBS full length bushing dies and barrels with SAAMI spec'd chambers with .004" to .005" neck clearance. The best of these shoot somewhat better than what benchresters end up winning matches with and once in a while setting a record. For example, here's a 20-shot group fired at 800 yards with full length sized cases in a SAAMI chamber with bullet runout up to .003". Compare its mean radius (about 1.1" or 2.2" 5-shot group average) to any long range benchrest aggregate of three or four 5- or 10-shot groups: [IMG]http://farm4.static.flickr.com/3614/3394146444_2d5f4c3e52.jpg[/IMG] I've made 15-shot groups with 30 caliber magnums at 1000 yards with a mean radius of about 2.1 inch each. Built on a post-64 Win. 70 action at that. One was with full length sized cases shooting 190-gr. bullets and the other was from new cases neck only sized with virgin brass shooting 200-gr. bullets. Look up the current three 10-shot agg. benchrest record and see how it compares. A 2.1 inch mean radius statistically equates to about a 4.2 inch group average at 1000 yards. Did you know that Sierra's been QA testing their bullets in rail guns firing bullets from full length sized cases since the 1950's? I doubt anyone gets better accuracy with them than they do. Their best match bullets go into groups measured in the one's; just like benchresters do. I'm not using the smallest 5-or 10-shot group fired for comparison, but there's some that have been fired from full length sized cases that put the best that benchresters tout as records to shame. Expecially when an old pre-'64 classic Winchester 70 action was used conventionally epoxy bedded in a wood stock. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Which press?
Top