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Discussion Starter #1
I bought 4 boxes of 338ME a couple of weeks ago for my new 338MX from Trophy's Outdoors. The lot # is 3110213. I had nothing better to do last night, as I was preparing my range bag, I decided to measure a couple of the brand new rounds from Hornady. To my surprise this is what I found:
the smallest = 2.574
the longest = 2.596 and everything else in-between.

Hornady's specs call for a COAL = 2.585, and SAAMi specs call for a min = 2.450 and a max COAL = 2.600. So far, I've found only 5 rounds = 2.585, about 22 rounds = 2.594-2.597 and a couple 2.580-2.582. I've attached a few pictures for you to see. Should I return these to Hornady or just go ahead and shoot them. BTW, It is a brand new 338MX and I've yet to fire the rifle.
 

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Interesting stuff as I have also gotten 4 boxes from Trophy with the same lot number---but no gun to shoot with because of warranty dept. I am also curious about these specs.
 

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I would call Hornady before shooting this ammo.

And thanks for the heads up, I will check my shipment when it arrives and post my results.
 

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They are within specs but it is unusual that they are diffent and to such a degree, I do not think they would be dangerous at all but you accuracy might not be what you would expect. Consistency is the biggest factor in accuracy.
 

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Al, I really think you are over thinking this. I bet there is a difference in all the lots and nobody else had the idle time to measure them all! ;D. Go out and shoot them, they will be fine. ;D

ps. I also have a couple boxes from the same lot, but I'm not going to measure them!
 

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I bought a case! I'm going to the range today, I'll post my results. Personally I don't foresee a problem.
 

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The differance is mostly the lenth of the gummie tip it's self as thay very a little bit, measure the cases and there is very little diferance although they do very a little. The book says not to trust the bullet tip for over all COAL. Dennis
 

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I think you're splitting hairs here. If they were longer or shorter than the tolerances listed, there would be reason for concern. All this means is you may lose a tiny bit of inaccuracy.

Several months back, ranch dog had asked for a COAL of the actual Hornady cartridges. I majored mine in the results were pretty similar to what you see. Yet that box of ammo still shot subMOA.

If you want to see how much of an effect this might cause, sort through the ammo and group it according to different lengths..

Fire five rounds from each group, and see how much your point of impact changes.

Me? I'd just shoot them.
 

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Discussion Starter #11
OK.... the forum has spoken .... I'll shot them when I get a chance (probably next Sat) to go to the range..... ;) Hmmm now I have an excellent excuse if I do't hit the blleye ;D
 

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Went to the range shot up 3 boxes between the MX and MLXR. No problem that I could notice, 1"-1.5" @ 100M. Use'um up. ;D
 

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Somebody has too much time on their hands. ::) Al, you really need to get out and shoot it. ;D DP
 

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Think maybe the way you are measuring is not an accurate way of doing it. To get the real seating depth you would have to take the measurement on the radius of the bullet like the bullet seater in a die, not on the tip. Tip probably varies and doesn't matter. Since mounting the Leupold, I've shot 150+ rounds through my 338MXLR and accuracy is excellent! I have never felt the bullet went somewhere it shouldn't when pulling the trigger. No flyer's yet... and don't be too quick to blame the rifle if your not using a Leupold or Redfield scope:=)) I had a Nikon at first and couldn't shoot a 6" group... never again!
 

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Got my shipment tonight and looked them over, did not have to measure as the eyes could tell that the crimp was all over the place on the cannelure. What with some crimped at the top and others crimped at the bottom or in the middle. Do I feel its dangerous, not really, what bothers me is that it is sloppy and something I, as a reloader, would not tolorate in my own ammo. To see Hornady put out such a large batch without proper QC makes me wonder if they even measured the powder properly.

As they say "You pluck down your money and take your chances!"
 

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Discussion Starter #16
HowdyC said:
What with some crimped at the top and others crimped at the bottom or in the middle. Do I feel its dangerous, not really, what bothers me is that it is sloppy and something I, as a reloader, would not tolorate in my own ammo. To see Hornady put out such a large batch without proper QC makes me wonder if they even measured the powder properly.
The sloppiness was my point when I first posted it. They were/are within SAMII specs so they should not be dangerous unless, as you point out, they didn't measure the powder correctly by a lot. I hope I'll be able to test this w/e and will post results. BTW, did yours have the same lot # as mine?
 

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Just read your first post and few others. You have a caliper so I'm guessing you reload. The deference between your C.O.L. measurements is only .023" In my Hornady's #8 manual Max. C.O.L. is 2.585" there is usually .10" variation in all bullets but with the Flex Tip there might be a greater variation. I measure the same way you do tip to base. I think if you had a caliper that measures from base of the case to bullets ogive your C.O.L. measurement would be uniform .

Go ahead and use them, you're worried about nothing.

TO NY
 

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Discussion Starter #18
308/338 said:
Just read your first post and few others. You have a caliper so I'm guessing you reload. The deference between your C.O.L. measurements is only .023" In my Hornady's #8 manual Max. C.O.L. is 2.585" there is usually .10" variation in all bullets but with the Flex Tip there might be a greater variation. I measure the same way you do tip to base. I think if you had a caliper that measures from base of the case to bullets ogive your C.O.L. measurement would be uniform .

Go ahead and use them, you're worried about nothing.

TO NY
I intend to use them but as I responded to HowdyC in my posting above yours, it is the sloppiness that irritates me. Maybe I've been very lucky and I'm spoiled but the times that I have measured the factory rounds, they have always been (except perhaps once if my memory serves me right) within the .10 or less. I do understand and agree with you that the correct measurement is to the ogive. But for the money we pay for ammo these days, I guess I expect better quality/precision.
 

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OK,

You can take this to the bank folks!!! The .338 Marlin Express is running on the ragged edge of MAX pressure already. Please do not ask me how I know but I promise I do. I already take all my Hornady ammo for the .308MX apart, weigh, adjust and reseat the bullets because of the overload I experienced a while back. Your call bro.

Dave 8)
 

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VTDW said:
OK,

You can take this to the bank folks!!! The .338 Marlin Express is running on the ragged edge of MAX pressure already. Please do not ask me how I know but I promise I do. I already take all my Hornady ammo for the .308MX apart, weigh, adjust and reseat the bullets because of the overload I experienced a while back. Your call bro.

Dave 8)
WOW do you still buy factory LE ammo and take them apart and then reassemble them to our spec., or do you just load your own? It would be easier just to load it yourself.

TO NY
 
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