One more tip.

[jamesdmock]

If you are jumping bullets, then you must shoot rounds that have the bullets seated very straight.(if you want to win) To achieve the very straightest bullets, you need good equipment. First of all, I have found that turned necks produce straighter rounds than those which are not turned. When seating bullets, I like the Wilson chamber type seater and I seat the bullet in two steps (after seating it half of the desired depth, I rotate the seater stem 180 degrees).

The second part is checking the runout. I use an H&H tool, but there are many good ones on the market. If there is not too much runout, I will straighten with the H&H tool. Those that show .002" or more are marked and used for foulers. Good shooting... James Mock

 

[jamesdmock]

Many people think that straightening ammo does more harm than good. In some cases they are correct. Tony Boyer uses N133 and a lot of neck tension and he does not believe in straightening ammo. On the other hand, Lester Bruno straightens his ammo and is an excellent shooter. He prefers 8208 or T-32 powder however. I use light neck tension in my Dashers and they perform better with straightened ammo. I have had some measure of success using straightened ammo and was SOTY in 600 yard competition last year at Prince Memorial Range . I also hold the range record at two different ranges. I posted this in the wrong place before as an answer to one who does not like straightened ammo. He has reasons for his beliefs, but so do I. Here are some of the first places finishes that I have garnered over the last few years using straightened ammo. If the process hurt me, I would not use it. Good shooting...James Mock
Ps- I added a picture of some first place trophies that were left out in the original picture. I did this in response to a few who stated that winning "wood" does not really mean anything. I disagree, because one needs the very best in equipment and loads to win in competition today. Good shooting....James Mock

 

[johara1]

Only one problem with it if you are shooting point blank it doesn't seem to matter but long range it changes neck tension from the ones that don't need anything done. I found it was better to sort them and use the one's that are best for record rounds..... Jim

 

[jamesdmock]

Only one problem with it if you are shooting point blank it doesn't seem to matter but long range it changes neck tension from the ones that don't need anything done. I found it was better to sort them and use the one's that are best for record rounds..... Jim

Jim, I shoot mainly 600 yards and most of the plaques above were won at that distance. James

 

[T-shooter]

Many people think that straightening ammo does more harm than good. In some cases they are correct. Tony Boyer uses N133 and a lot of neck tension and he does not believe in straightening ammo. On the other hand, Lester Bruno straightens his ammo and is an excellent shooter. He prefers 8208 or T-32 powder however. I use light neck tension in my Dashers and they perform better with straightened ammo. I have had some measure of success using straightened ammo and was SOTY in 600 yard competition last year at Prince Memorial RangeView attachment 1019691 . I also hold the range record at two different ranges. I posted this in the wrong place before as an answer to one who does not like straightened ammo. He has reasons for his beliefs, but so do I. Here are some of the first places finishes that I have garnered over the last few years using straightened ammo. If the process hurt me, I would not use it. Good shooting...James Mock

What process do you use to straighten ammo?

 

[johara1]

James, I said long but it has some effect there when you straighten them they loose neck tension.... and you will get vertical. If you run low neck tension it is worse. With the Spencers the pressure ring is .0005 larger than the shank, move them and they may fall out. Jim

 

[mikecr]

Neck benders do not make straight ammo.

 

[Raythemanroe]

I sort for Record rounds, I would not straighten if it made sense.. Which sorting is much easier..

Ray

 

[Alex Wheeler]

When you push a bullet to the side to "straighten" it your "egging" out the neck. You must go past center for the bullet to come back to center. Your yielding the brass to cause a move. You are screwing up neck tension on that case. Your advocating un even neck tension when you recommend straightening ammo. A pile of wood does not change any of that. My personal testing which corresponds with others I trust has always shown no accuracy to be gained with the straightest vs crookedest ammo I have loaded.

 

[pacificman]

Thanks for the tip James! I like the fact that you mention some shooters straighten and some don't.
Looks to me you have enough trophy's to back up your method. I don't straighten but seems that I
just might have to do some experimenting on my own rifles to see what kind of results I might get.

 

[jamesdmock]

I won't straighten ammo that has very much runout. Also, I don't straighten rounds that have the bullet seated into the lands. My preference is to have perfectly straight bullets from the seating die, but that doesn't happen all the time. After rounds are straightened and they are left alone for several days they do not get crooked again and the resilience of the brass gives almost the same neck tension as before they were straightened. If straightening bothers a shooter, they should avoid doing it. I will test some rounds in my new 6 BR-AI barrel and see if it shoots better with straightened rounds or those straight from the seater. My new barrel has zero rounds and I will fire form some brass for it this weekend. I'll let you know how it works out. Good shooting...James

 

[Raythemanroe]

When you push a bullet to the side to "straighten" it your "egging" out the neck. You must go past center for the bullet to come back to center. Your yielding the brass to cause a move. You are screwing up neck tension on that case. Your advocating un even neck tension when you recommend straightening ammo. A pile of wood does not change any of that. My personal testing which corresponds with others I trust has always shown no accuracy to be gained with the straightest vs crookedest ammo I have loaded.

Probably true, but your not talking Super bad concentricity.. You probably have .003 tolerance between chamber diameter and loaded neck clearance.. .0015 each side, running jammed .005-.008? I'm guessing after said and done it is relatively straight even with the ones you sorted out for Sighters..


Ray

 

[Hal]

James

Thanks for the tips. It's always nice to see what works for shooters that win
There is no way to argue with winning results. Nice stack of wood.

Hal

 

[Hal]

What process do you use to straighten ammo?

On his ammo testing jig, in the lower right hand corner, you'll notice the red handled of the toggle straightening unit.

Hal

 

[T-shooter]

On his ammo testing jig, in the lower right hand corner, you'll notice the red handled of the toggle straightening unit.

Hal

Just noticed that. I saw this video and the concept looks interesting.

 

[KenOath]

A question.. If the chambers free bore is .0005 to .001 larger in diameter than the diameter of the bullet wouldn't concentricity of bullet be no larger than freebore diameter once the round was chambered?

 

[sdean]

A question.. If the chambers free bore is .0005 to .001 larger in diameter than the diameter of the bullet wouldn't concentricity of bullet be no larger than freebore diameter once the round was chambered?

With that train of thought we are waisting time trying to make straight ammo.

 

[KenOath]

With that train of thought we are waisting time trying to make straight ammo.

Not necessarily, if you load a round and it's got bad concentricity say .005+ then maybe one should have a look at there brass, Dies, Seating stem or something else that could be causing larger than youde like concentricity..But if I'm getting.003 or less I myself would chamber and shoot. We all have our own ideas of what excessive concentricity is. Just my 2c.

Cheers Rushty

 

[mikecr]

Ammo is not straight until measuring low TIR on a v-block.
Neck bender results implied here suggest that a gun can shoot with high runout -given high chamber clearances. And this forgiving condition has drawn favor from competitors, no question about that.

 

[alf]

I always straighten my ammo......