Well I got in the Bersin tools I ordered, it is amazing what a good measuring tool will show you. Some ammo that I suspected was borderline in concentricity without having checked it was just great. Tweaking some up with these tools is fairly straightforward, I am still getting the feel right now.....

Factory ammo is all over the place--hadn't typically checked concentricity on factory stuff before, until I got these tools, no way to tweak it accurately before.

I've got a couple of really accurate loads, I'm gonna 'bersin' and see if I can see a difference on the target face.

Another nice chunk of change on a some tools...

Thanks a lot DJ!

Hey Don, when did you order it? I still have not received mine. The guy at Kinneman's said he needed to order more.

Yeah, dj, do you get a commission on Bersin sales?

Bob, I ordered them on 2/18 and received an order confirmation via e-mail on 2/22. Both tools (one was the 'kit') showed up yesterday, I placed the order on line.

Okay Don, finally got mine and bersin'ed everything in sight. It worked on everything except my dog's hind legs!

Some of the loads just would not get perfect, which for our purposes let's call less than 2 graduations (4/10,000ths per mark on scale). Some of the WW cases I could only get within 4 marks after going back and forth for a while.

The 300 loads in the Norma cases were easier to get the runout down but they had less than the WW cases to begin with.

The 280AI loads in the Nosler cases had very little runout to begin with (all less than 4 marks to begin with) and now they are all perfect!

Didn't spring for the 22-250 body but am going to go over now and see if they fit in any of the holes.

Will let you know if it makes a difference at the range.

Do you think we discovered dj's secret?

I'd definitely be interested in your results. I'm still pondering the 4/10,000 thing...

Is it your thought that between say indicator mark 2 & 3 that the ten hash marks represent .0004 each, and therfore if you get a round where it is deflecting 3 marks back and forth that would represent 12/10,000 out??

I think that's what I think.......

Working on the couple of boxes of Win factory ammo I chose to work on, getting them to about 16 to 20 ten thousandths (using my above interpretations of measurement) was as good as I could get em.

i enjoy friends with good toys

Yeah Don, that's the way I understand it and it did work out where one of them that I could only get down to about 4 marks and it read about .002" runout on the casemaster gauge.

quote:

enjoy friends with good toys

What do you think Don, what would be a good rate? About $1.00 a load for straightening a friend's crooked ammo?

Or maybe a fishing trip!

I like the idea of goin' fishin!

Hey Don, have you figured out a way to turn the case in the hole? Sure is hard on your fingers.


Maybe I could train bounty hunter and let him do it for me.

quote:

Originally posted by Woods:
...now they are all perfect!

And another "classic".

quote:

Originally posted by Fish:
I think that's what I think.......

---

Hey BH, When, not if, your P-FLRed ammo wins the BBQ for Supper, there will be one person who is not surprised!

quote:

Originally posted by Hot Core:

Hey BH, When, not if, your P-FLRed ammo wins the BBQ for Supper, there will be one person who is not surprised!

H C, bh already bought the BBQ (chopped beef, when you want real BBQ come on down here ) when I went out to his house so we could figure out his modern whizzbang new reloading toy. Oh, he didn't mention that, did he?

the fishing is awfully good right now if you can catch it between fronts and there is some water in the bay. i,ve been awfully busy straightening my bullets.

Well I truly hope that you guys get some excellent results from your straightened ammo, I'd hate to get blamed for selling too many expensive gadgets that I don't get anything out of. You'd think as expensive as they are I should at least get a discout for helping sell a few but no such luck, I had to pay full price for my 338 Lapua body.
But seriously let me know how it works for you guys, I've got my fingers crossed.
Oh, and eventually calluouses help ease the finger pain ...................DJ

quote:

Originally posted by djpaintles:
Well I truly hope that you guys get some excellent results from your straightened ammo,...

Me too!

I've had some grilled cow and do enjoy it right well, especially when the other shooter has to buy it.

Try your Bersin tools on some dummy rounds and try running them through the magazine and chamber, then check them!

quote:

Originally posted by Pegleg:
Try your Bersin tools on some dummy rounds and try running them through the magazine and chamber, then check them!

I've done that and it didn't change. Perhaps because I use the Lee Factory Crimp to put a medium crimp on them first and that may help hold it in place.

Bob, I have been using one of those rubber jar lid assists some. Didn't work real well, I'm just thinking DJ is right, some calluses after a time.......

DJ, I'll let you know, I have a test platform planned for this weekend's range session.

Okay, tell me what you think.

Previously I had loaded 31 rounds, all the same load. On the 26th of February I shot this 10 shot group



Then I got the Bersin and straightened the remainder, although these were in WW brass and I could not get all the runout out. Today I shot this 10 shot group, about the same weather



Would you believe that one flier was the last shot and a new shooter 2 benches over touched off his 30-378 with a muzzle brake the same time I shot? Ruined a good group!

Anyway it looks like the Bersin made an improvement from a 1 3/8" group to a 1" group (minus the flier ).

Bob, thanks for the report. I would say that is a measurable difference. I have a similar test planned for this Sunday, so I'll be anxious to see what I divine.

As Glenn Zediker has said, the best way to measure the results of your reloading 'precision' is on the target face!

Interestingly, I have found that cartridges/loads that I know the dies and seaters produce very little runout out on, were very easily tweaked to super tight tolerances with the Bersin, I suppose that it makes sense that one can make something really good just a touch better---to maybe excellent???---I'll be checking on the target face soon!

woods,you are omiting alot of info on your experiment.First,are you holding all other factors constant,like cleaning method? Was your brass resized after the first target? Were both targets shot at the same distance?What I'am saying is that you may have changed something in your reloading that is responsible for the tighter group but you are giving credit to the run-out tool.

quote:

Originally posted by shootaway:
woods,you are omiting alot of info on your experiment.First,are you holding all other factors constant,like cleaning method? Was your brass resized after the first target? Were both targets shot at the same distance?What I'am saying is that you may have changed something in your reloading that is responsible for the tighter group but you are giving credit to the run-out tool.

At the start of the post before the pictures I said I had loaded 31 rounds. These were all loaded at the same time with the exact same prep, case, primer, trim length, shoulder setback, chamfer, powder etc...etc...

I loaded those 31 before I ever got the Bersin or even thought about buying one about a month ago. That is my hunting load cause the rifle really likes it.

As best as I can make 'em, there was no difference between those 31 loads. I fired both of those 10 shot groups at about the same time of day and had the same 3 guns at the range. I would shoot 2 ea 280AI, 2 ea 22-250 rounds and then 1 with the 30-06 so the barrel would stay cool. Same cadence, same range, same bench, same temperature and very close to the same weather except it was a little windier on the day of the Bersin'ed loads.

I had not cleaned the gun before either session and already had about 10 shots through the gun before the first group. That is a very consistant gun and has always shot groups of 10 similar to the first photo. It usually shoots well past 25 loads without cleaning and without loosing any accuracy. I normally clean after 25.

I am sorry,I did not read carefully.It looks as if this tool works.

Woods, I think your test was excellent. I noticed the shape of your second group showed a lot of promise. Shooting outdoors conditions can always vary before you know it so flyers all to often result.
I guess if we had a 300yd indoor range and a mechanical rest we could really determine things but who has one and what fun is it shooting of a mechanical rest!
I hope your good results continue...............DJ