1.8" by paper DNR card

[Hookeye]

...........shows 1.720"

Yup, seems the DNR has a light yellow reference card, that is incorrect.
Measured one just a few minutes ago.

DNR reportedly giving warnings (possibly tickets) based on using this card.

They better get that straightened out.

Got a pic coming from another guy's phone, hasn't shown up in my email yet. Will post when it does.

 

[redneckmedic]

So the print these cards off in bulk, multiple per sheet then use a long bladed paper cutter to trim down to length...yeah no window for failure there.

Next year with my new ~hopefully~ 358 I will have my plastic calipers and my load data....CYA

 

[CountryBoy19]

Are you telling me that the DNR can afford to print off a ton of crappy paper cards but can't buy a $20 pair of cheap digital calipers for each officer?

 

[Willie]

...........shows 1.720"

Yup, seems the DNR has a light yellow reference card, that is incorrect.
Measured one just a few minutes ago.

DNR reportedly giving warnings (possibly tickets) based on using this card.

They better get that straightened out.

Got a pic coming from another guy's phone, hasn't shown up in my email yet. Will post when it does.

Please do post it.

Not sure why they just didn't go to MM and give the COs a MM ruler.

1.80" .. is 45.72 MM

Where is .80 on a inch ruler?

 

[Willie]

Please do post it.

Not sure why they just didn't go to MM and give the COs a MM ruler.

1.80" .. is 45.72 MM

Where is .80 on a inch ruler?

(1)Subtract 1, the number of whole inches.

1.80 - 1 = .80

(2)Multiply .80 x 16 to get the number of 16th's inches remaining.

.80 x 16 = 12.8

12.8 = the number of 16th's of an inch. This is the numerator of the fraction. Apply the rules for rounding.

12.8 rounds to 13 because .8 is .5 or greater.

Therefore, 1.80in. =(approximately) 1 and 13/16ths inch(es) (You may have to reduce.)


http://www2.whidbey.net/ohmsmath/webwork/javascript/decin2fr.html

 

[kyotekilr]

Or use a ruler with tenths instead of sixteenths

 

[redneckmedic]

(1)Subtract 1, the number of whole inches.

1.80 - 1 = .80

(2)Multiply .80 x 16 to get the number of 16th's inches remaining.

.80 x 16 = 12.8

12.8 = the number of 16th's of an inch. This is the numerator of the fraction. Apply the rules for rounding.

12.8 rounds to 13 because .8 is .5 or greater.

Therefore, 1.80in. =(approximately) 1 and 13/16ths inch(es) (You may have to reduce.)


http://www2.whidbey.net/ohmsmath/webwork/javascript/decin2fr.html

That's a good story, now show me 1.65 and the the difference between the two, or actually 1.801 since that is illegal case length in IN.

 

[Willie]

That's a good story, now show me 1.65 and the the difference between the two, or actually 1.801 since that is illegal case length in IN.

Not my story.. Just did a coversion on that link.

1 and 13/16s would be tad over the 1.80..maybe your 1.801?

Another question.. measured fired or unfired?

Not being a rifleman I have heard that a case will stretch ever so slightly when fired? Truth or fiction?

 

[kyotekilr]

Why are they using paper to begin with? Why not just carry a case that is max in length and diameter?

 

[redneckmedic]

Not my story.. Just did a coversion on that link.

1 and 13/16s would be tad over the 1.80..maybe your 1.801?

Another question.. measured fired or unfired?

Not being a rifleman I have heard that a case will stretch ever so slightly when fired? Truth or fiction?

All brass expands when fired...some, but these guys want to measure 1.8" over all case length, loaded, as that is the Max length legal for In deer hunting.

 

[Willie]

All brass expands when fired...some, but these guys want to measure 1.8" over all case length, loaded, as that is the Max length legal for In deer hunting.

Devil's advocate...

Well and good but if a CO measures unfired cartridge and then asks for any fired cases and it measures over he can say the length is too long, right?

May be best to chuck a fired one?

 

[Willie]

Too much thinking...

I "think" I'll stay with my old tube fed Ruger .44 Mag Carbine..

http://img.photobucket.com/albums/v...4-B062-17AEF95D360D-5255-000005D939F0022D.jpg

 

[Picit]

 

[Picit]

Here is the pic for you

 

[Picit]

The law states rifle cartridge case length 1.8 inches. That means loaded, stretched fired brass would ok as I read the law.

 

[CountryBoy19]

All brass expands when fired...some, but these guys want to measure 1.8" over all case length, loaded, as that is the Max length legal for In deer hunting.

Are you saying OAL is the measure length? I don't think that's right. The max length is applied to the EMPTY cartridge casing.

If you were to be cited based upon a fired casing being over the limit I think it would be very easy to fight in court if you have the right expert witnesses...

I also wonder if the "caliber circles" on those cards are right. It could have been a printer scaling issue and this will work to your advantage, but only if you're already in violation of the requirements.

 

[Hookeye]

For any legal merit I would think the measuring device in question put to some registered standard.

I also would have thought the graphic to be measured before being put to use
(by the CO).

There may be some folks out there owed apologies.

And some of those might not be good enough.

 

[Hookeye]

Are you saying OAL is the measure length? I don't think that's right. The max length is applied to the EMPTY cartridge casing.

If you were to be cited based upon a fired casing being over the limit I think it would be very easy to fight in court if you have the right expert witnesses...

I also wonder if the "caliber circles" on those cards are right. It could have been a printer scaling issue and this will work to your advantage, but only if you're already in violation of the requirements.

OAL of the brass (cartridge means loaded form by the way I take it).

 

[Hookeye]

If I was a CO I'd get a toolmaker to make me a gauge and have it measured by the state and get a cute little ISO 9000 sticker on it (or whatever system is in vogue now).

Or certify a set of calipers.

Anything less is BS.

 

[Hookeye]

The calipers in the pic have NOT been certified. I have used them in the past and gotten good numbers to the thousandths. They may have been bonked since then, but to be .080" off............I think the card's graphic in more error than whatever is in the calipers.

Have some known good ones, will compare when I can.