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
Way in or way out ?
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: 98153" data-attributes="member: 5302"><p>This is an interesting thread. I'll throw in my observations to change the flavor of what's in this kettle.</p><p></p><p>How far a bullet should jump to the rifling varies as much as what components to use that makes 'em jump. Most interesting is what the different shooting discipline's best shots use and how they determine what works best.</p><p></p><p>The best test method to evaluate ammo for accuracy is one that is the most repeatable, has the most shots per group and has the best accuracy. It returns the barrel back to the exact same position held in the exact same place with exactly the same force or pressure. </p><p></p><p>At the top of this list in first place are the return-to-battery machine rested rigs used in unlimited class benchrest competition, testing highpower match rifles and testing bullets at a bullet making company. Such devices are shot virtually untouched by humans. These rigs are used at ranges from 100 to 1000 yards and shoot the smallest groups. Groups are typically 5 to 20 or more shots or the average of several of them.</p><p></p><p>In second place are benchrest rifles rested on sandbags untouched by humans except for the thumb and fore finger pinching the 2-oz. trigger to fire the shot. Again, groups are typically 5 or 10 shots or the average of several of them. And they're shot at ranges from 100 to 1000 yards.</p><p></p><p>Third place (and very close to what's in second place) belongs to highpower rifle shooters slung up in the prone position. Although they shoot for score at ranges from 300 to 1000 yards, their 15- to 20-shot "groups" are mentally measured by how far the shot strikes from where it was called.</p><p></p><p>Fourth place is relagated to varmint hunters who's 22 to 24 caliber rifles and ammo are tested off a bench. They hold their rifles against their shoulder gripping the stock's forend or toe with their off hand and the pistol grip with the trigger hand managing an 8-oz or heavier trigger. They test usually at 100 yards but sometimes at 200 or 300. Groups have more than 3 to 5 shots.</p><p></p><p>Fifth place are folks shooting 25 to 30 caliber hunting rifles tested the same way as varmint hunters; 3- to 5-shot groups at 100 yards and occasionally up to 300; rarely more. Triggers are typically heavier as well as recoil.</p><p></p><p>Sixth and last place belongs to folks shooting rifles greater than 30 caliber having heavier trigger pulls lots of recoil fired from the traditional bench setup used by those in fourth place. 100 yards is the typical test range and test groups have from 2 to 5 shots. These rifles are the hardest to shoot accurately.</p><p></p><p>If one compares the components used and how they're assembled across these groups, they'll discover an interesting fact. People in first and second place tend to use the same stuff within their respective disciplines assembled the same way. There isn't any significant difference.</p><p></p><p>Folks at the other end of the list have a wide range of components and assembly techniques whose results cover the whole spectrum. The number of "favorite" component and assembly lists is huge.</p><p></p><p>Keep this in mind when comparing handloading components/techniques A to B to C to..... Not only does it apply to how far bullets should be off the rifling before firing but everything else, too. How a "test" is conducted will greately effect the results. Test methods that produce the smallest groups typically use the best components assembled the best way.</p></blockquote><p></p>
[QUOTE="Bart B, post: 98153, member: 5302"] This is an interesting thread. I'll throw in my observations to change the flavor of what's in this kettle. How far a bullet should jump to the rifling varies as much as what components to use that makes 'em jump. Most interesting is what the different shooting discipline's best shots use and how they determine what works best. The best test method to evaluate ammo for accuracy is one that is the most repeatable, has the most shots per group and has the best accuracy. It returns the barrel back to the exact same position held in the exact same place with exactly the same force or pressure. At the top of this list in first place are the return-to-battery machine rested rigs used in unlimited class benchrest competition, testing highpower match rifles and testing bullets at a bullet making company. Such devices are shot virtually untouched by humans. These rigs are used at ranges from 100 to 1000 yards and shoot the smallest groups. Groups are typically 5 to 20 or more shots or the average of several of them. In second place are benchrest rifles rested on sandbags untouched by humans except for the thumb and fore finger pinching the 2-oz. trigger to fire the shot. Again, groups are typically 5 or 10 shots or the average of several of them. And they're shot at ranges from 100 to 1000 yards. Third place (and very close to what's in second place) belongs to highpower rifle shooters slung up in the prone position. Although they shoot for score at ranges from 300 to 1000 yards, their 15- to 20-shot "groups" are mentally measured by how far the shot strikes from where it was called. Fourth place is relagated to varmint hunters who's 22 to 24 caliber rifles and ammo are tested off a bench. They hold their rifles against their shoulder gripping the stock's forend or toe with their off hand and the pistol grip with the trigger hand managing an 8-oz or heavier trigger. They test usually at 100 yards but sometimes at 200 or 300. Groups have more than 3 to 5 shots. Fifth place are folks shooting 25 to 30 caliber hunting rifles tested the same way as varmint hunters; 3- to 5-shot groups at 100 yards and occasionally up to 300; rarely more. Triggers are typically heavier as well as recoil. Sixth and last place belongs to folks shooting rifles greater than 30 caliber having heavier trigger pulls lots of recoil fired from the traditional bench setup used by those in fourth place. 100 yards is the typical test range and test groups have from 2 to 5 shots. These rifles are the hardest to shoot accurately. If one compares the components used and how they're assembled across these groups, they'll discover an interesting fact. People in first and second place tend to use the same stuff within their respective disciplines assembled the same way. There isn't any significant difference. Folks at the other end of the list have a wide range of components and assembly techniques whose results cover the whole spectrum. The number of "favorite" component and assembly lists is huge. Keep this in mind when comparing handloading components/techniques A to B to C to..... Not only does it apply to how far bullets should be off the rifling before firing but everything else, too. How a "test" is conducted will greately effect the results. Test methods that produce the smallest groups typically use the best components assembled the best way. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Way in or way out ?
Top