Anyone out there know why Lake City puts that little weird knurl near the base of 308 match cases???? It must do something??? Why add the extra step???? I've never really had any issues with it, just wondering what it was for. Thanks in advance for any info.
308 Match brass ?????????
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venomballistics
Member
That feature simply offers a visual identity marker.
see the band, no question what it is
see the band, no question what it is
Thanks for the reply. Makes sense...I'll buy that. I wonder why they put it on military 38 Special brass too. I have only ever seen it on those two cases. I don't know, maybe the 38's I saw were match also and it just didn't say it on the casehead.
venomballistics
Member
Well, only one branch of service ever issued a 38.
The thing to bear in mind is that lake city spends most of it's time loading ammo to a stringent set of specifications. When they do a match run, they load for a result which may deviate from the government specs.
The "tin can" run of match 30-06 has a little notoriety that made some interesting reading in Hatchers notebook.
The thing to bear in mind is that lake city spends most of it's time loading ammo to a stringent set of specifications. When they do a match run, they load for a result which may deviate from the government specs.
The "tin can" run of match 30-06 has a little notoriety that made some interesting reading in Hatchers notebook.
The only 7.62 match ammo that used the knurled identifier band was M852 which was the first time Lake City loaded open tip match bullets, the 168 grain Sierra Match King HPBT. The identifier band was to give a visual and tactile indication that the M852 was not authorized for combat use due to the Hague Convention ban on expanding bullet use for war. Since that time the OTM bullets have been cleared for U.S. combat usage since they are not "designed" to expand the open tip is to increase accuracy. These cases generally fail at the knurled band sooner than a regular case but should still be good for 2-4 reloads or so.YMMV
Some lots of the .38 Special M41 ball were knurled for a different reason that being to prevent bullet set back. I believe the thinking was that .38 ammo would be carried in open bullet loops and loaded in/out of revolvers as they were checked in/out of military arms room's. At some point this was eliminated as a good crimp works just as well.
sarg1c
US Veteran
DWalt
Member
The M41 was never loaded by Lake City, and I have never seen a knurled M41 round. The ONLY .38 Special round ever loaded at Lake City AAP was the PGU-12/B round made only for the USAF in the late 1970s, and I have never seen one of those having a knurled case either. Do you have a picture showing that?
Anyone have a picture of this Knurl you are talking about??
I need visuals
I need visuals
Quite correct in all regards....knurlized casing will last much longer in a bolt gun....in an M1A about 4 reloadings is correct....more than that and they start separating....time to recycle.
Randy
I've fired thousands and thousands of the M852 in M1A's so my opinion is based on my High Power Service Rifle experience for over 25 yeras.
Randy
I've fired thousands and thousands of the M852 in M1A's so my opinion is based on my High Power Service Rifle experience for over 25 yeras.
What is this Knurl you speak of?????
I am on the way out the door right this second, but when I return {late afternoon} I will post some photos. I never said Lake City knurled those 38 Specials...I said "they" meaning whoever. I have some and will post photos of those too.
Here is the Knurl "of which I speak"....be advised that once seen, the knurl cannot be unseen!!! You have been so advised.....
It looks the same on the 38 Special cases but it is located about half way up the case on them. You can really see the chamber crud imbedded in the knurl cuts up on macro.
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Thanks, yes that is odd. Do not think I have ever seen such an animal.
Very Interesting.
Very Interesting.
The LC Match casings are quite consistent for match shooting, I always traded them to the Guard shooters when they got around 4-5 reloads and got once fired in return.
Loaded with IMR 4895 and a Sierra 168 Match King and you have replicated the M852 or Federal Gold Medal Match.
The other nice thing is that the primer pockets don't need to be swaged...just like commercial brass in that regard.
Randy
Loaded with IMR 4895 and a Sierra 168 Match King and you have replicated the M852 or Federal Gold Medal Match.
The other nice thing is that the primer pockets don't need to be swaged...just like commercial brass in that regard.
Randy
