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Joined: Oct 2007
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Campfire Outfitter
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Campfire Outfitter
Joined: Oct 2007
Posts: 14,317 Likes: 3 |
Did you get the brass for free? I would have sent a sample back and asked for a refund.
Its all right to be white!! Stupidity left unattended will run rampant Don't argue with stupid people, They will drag you down to their level and then win by experience
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Joined: Oct 2008
Posts: 4,228 Likes: 1
Campfire Tracker
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Campfire Tracker
Joined: Oct 2008
Posts: 4,228 Likes: 1 |
Think of it this way, once you do the flash holes, you never have to touch them again. I treat the primer pockets kinda the same way, I use a cutter/uniformer on new brass but just run it in to take the radius out at the wall and bottom. Then, I use the same tool to clean the pockets after firing and it keeps them clean and you can feel if one is shallower than others.
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Joined: Jan 2003
Posts: 3,475 Likes: 19
Campfire Tracker
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OP
Campfire Tracker
Joined: Jan 2003
Posts: 3,475 Likes: 19 |
Did you get the brass for free? Nope. would have sent a sample back and asked for a refund. That would have gained nothing as I do this on all new brass anyway. This bunch was a bit extreme and thought it might be of interest.
Forbidden Zoner
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Joined: Dec 2012
Posts: 2,012 Likes: 2
Campfire Regular
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Campfire Regular
Joined: Dec 2012
Posts: 2,012 Likes: 2 |
I'm assuming Al's point is dont assume just because its XYZ brand of brass or anything you better check. Assume everything is broke untill you check that motto sure helps keep surprises to a minimum.
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Joined: May 2014
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Campfire Outfitter
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Campfire Outfitter
Joined: May 2014
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Must be the time of the year. I’ve been prepping 30-06 brass for a week or so along with other brass and some rifle work. The military brass I have dates back to 1942 (head stamp Den 42), but most are LC 76. I use the military brass for cast bullet matches only. I segregate by head stamp. I have been known to segregate by weight to try to get the last bit of accuracy. I’ve been annealing necks and trimming to length now. I have not noticed oblong flash holes. Back when I used a lot of military 223 brass I measured the centricity of the flash hole, throwing away brass that didn’t have the flash hole centered - I don’t know if that helped for accuracy but off center flash holes did screw up decapping pins. I used a hammer and a punch to deprime the military 223 brass, then determined if the flash hole was centered. After that just used dies. I used to have to have the brass shiny. I believe there’s only negative value in polishing the brass now, except for resale value. I used a nylon brush and brushed the inside of the neck with graphite in an attempt to avoid bonding/welding the bullet to the case each time I loaded the case, it also lubed the inside of the neck for resizing. After reading a response here on the Fire or maybe it was an article by MD, I just stopped polishing and stopped using graphite. For inside neck lube I now use Hornady one shot, it’s faster.
I prefer classic. Semper Fi I used to run with the hare. Now I'm envious of the tortoise and I do my own stunts but rarely intentionally
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Joined: Aug 2015
Posts: 13,281 Likes: 4
Campfire Outfitter
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Campfire Outfitter
Joined: Aug 2015
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Did you get the brass for free? Nope. would have sent a sample back and asked for a refund. That would have gained nothing as I do this on all new brass anyway. This bunch was a bit extreme and thought it might be of interest. It would be of interest if we knew which brand you were discussing.
Let's Go Brandon! FJB
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Joined: Dec 2015
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Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2015
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i always prep my brass and check to make sure every hand loaded cartridge fits perfect and easy in the chamber of that rifle i will be using when in a match , hunting or doing some rifle accuracy ammo testing for a certain rifle . i have my own rifle range and plenty reloading equipment so for me a little time prepping my ammo only makes sense for having better more accurate ammo. Pete53
LIFE NRA , we vote Red up here, Norseman
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Joined: Jul 2010
Posts: 1,746 Likes: 18
Campfire Regular
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Campfire Regular
Joined: Jul 2010
Posts: 1,746 Likes: 18 |
Does messing with flash holes actually make a difference?
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Joined: Jan 2003
Posts: 3,475 Likes: 19
Campfire Tracker
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OP
Campfire Tracker
Joined: Jan 2003
Posts: 3,475 Likes: 19 |
No need to mention the name...that would just be throwing a good company under the bus. The main takeaway is to check stuff. Of course on this brass, you'd get a hint when the decapping broke or stuck after the first firing.
Forbidden Zoner
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Joined: Jun 2001
Posts: 2,244
Campfire Regular
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Campfire Regular
Joined: Jun 2001
Posts: 2,244 |
I got bored one time and decided to attempt to duplicate the original 6.5 CM 140 grain AMax factory load firing out of a factory box-stock 1st gen RPR.
I had one box remaining of the AMax rounds (version without the printed recipe on the box) so I set up at the range and let fly 10 rounds. Measuring up the rounds before hand both OAL and BTO (sinclair) varied by 0.004". Results were Avg MV: 2,640 fps, SD: 27.3, ES: 76. The two 5-round groups were between 0.5" and 0.6"
I've kept my Hornady once-fired match brass and fired thru the RPR separate from others, so I went all OCD on a bunch of that brass. Flash hole, primer pocket, TTL, annealed, and neck sized. I then weight-sorted the brass and chose 20 to load. Problem - the AMax bullet had gone away, replaced by the 140 grain ELDM. So, I sorted a bunch of those by BTO (sinclair) to ease seating to the original 2.810" OAL.
Federal 210 match primers, 41.5 grains H4350, and OAL to 2.810".
Then back to the range (100 yards) with 10 of those rounds, glass set to 20x. Results: Avg MV: 2,602.1 fps, SD: 16.1, ES: 51.8. Group 1 (5 rounds): 0.174" Group 2 (5 rounds): 0.236"
Not too shabby given a stock factory rifle, but I 'aint going to go through all that work for the hunting rifle version of that cartridge.
It's you and the bullet, and all the rest is secondary.
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Joined: Nov 2005
Posts: 1,947
Campfire Regular
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Campfire Regular
Joined: Nov 2005
Posts: 1,947 |
Al,
Have prepped a lot of brass, but so far haven't been able to tell any difference in group size with the Starline brass (which was pretty uniform as received) in my .50-70 Springfield trapdoor, a "first year production" conversion done in 1866. Maybe if I mounted a 30x scope?
John The last 2 bags of Starline 6 ARC brass I got were so good I don't think I'll 'prep' anymore of Starline. 9.3x62 Lapua cases weren't this uniform. Starline is really good stuff.
The truth angers those whom it does not convince
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Joined: Aug 2010
Posts: 48,302 Likes: 37
Campfire 'Bwana
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Campfire 'Bwana
Joined: Aug 2010
Posts: 48,302 Likes: 37 |
Did you get the brass for free? Nope. would have sent a sample back and asked for a refund. That would have gained nothing as I do this on all new brass anyway. This bunch was a bit extreme and thought it might be of interest. If the flash holes are as bad as you say, and the brass chips indicate, I'd dubur them as well. I've had to dubur some, but most times, it isn't necessary. On a bad lot, as it looks like you got, it is indeed necessary. Something to be aware of, for sure, but something I don't think I'd ever start a thread about. Just do it, and move on..
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style. You want to see an animal drop right now? Shoot him in the ear hole. BSA MAGA
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Joined: Aug 2015
Posts: 13,281 Likes: 4
Campfire Outfitter
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Campfire Outfitter
Joined: Aug 2015
Posts: 13,281 Likes: 4 |
^^^ Yes, you should only start a thread if you have pictures of lots and lots of paper targets with holes in them. Everyone wants to see your paper with holes.
Let's Go Brandon! FJB
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Joined: Sep 2004
Posts: 8,219 Likes: 1
Campfire Outfitter
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Campfire Outfitter
Joined: Sep 2004
Posts: 8,219 Likes: 1 |
I detect a smidgen of sarcasm ^^^ Yes, you should only start a thread if you have pictures of lots and lots of paper targets with holes in them. Everyone wants to see your paper with holes.
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Joined: Aug 2015
Posts: 13,281 Likes: 4
Campfire Outfitter
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Campfire Outfitter
Joined: Aug 2015
Posts: 13,281 Likes: 4 |
Just a smidge.
Let's Go Brandon! FJB
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Joined: Dec 2015
Posts: 8,346 Likes: 2
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2015
Posts: 8,346 Likes: 2 |
Does messing with flash holes actually make a difference? sometimes
LIFE NRA , we vote Red up here, Norseman
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Joined: Apr 2009
Posts: 18,943 Likes: 2
Campfire Ranger
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Campfire Ranger
Joined: Apr 2009
Posts: 18,943 Likes: 2 |
^^^ Yes, you should only start a thread if you have pictures of lots and lots of paper targets with holes in them. Everyone wants to see your paper with holes. Have to conserve bandwidth for the ad nauseam target pics and the ever popular store shelf pics demonstrating extraordinary shopping skills.
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Joined: Jul 2001
Posts: 60,236 Likes: 29
Campfire Kahuna
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Campfire Kahuna
Joined: Jul 2001
Posts: 60,236 Likes: 29 |
Al,
Have prepped a lot of brass, but so far haven't been able to tell any difference in group size with the Starline brass (which was pretty uniform as received) in my .50-70 Springfield trapdoor, a "first year production" conversion done in 1866. Maybe if I mounted a 30x scope?
John The last 2 bags of Starline 6 ARC brass I got were so good I don't think I'll 'prep' anymore of Starline. 9.3x62 Lapua cases weren't this uniform. Starline is really good stuff. Same here. If Starline offers a particular case I tend to buy it. Have also used a bunch of Peterson brass in the past few years, but Starline offers a wider range, and can be less expensive in the same cartridge. (Might also mention that my .50-70 trapdoor averages 2" for 3-shot groups at 100, using Starline brass and cast bullets--which ain't bad for a 158-year-old barrel with the "issue" open sights. I suspect Buffalo Bill Cody would have been quite happy with that, as he killed most of his buffalo with a .50-70 trapdoor....
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
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Joined: May 2014
Posts: 10,505 Likes: 14
Campfire Outfitter
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Campfire Outfitter
Joined: May 2014
Posts: 10,505 Likes: 14 |
Al,
Have prepped a lot of brass, but so far haven't been able to tell any difference in group size with the Starline brass (which was pretty uniform as received) in my .50-70 Springfield trapdoor, a "first year production" conversion done in 1866. Maybe if I mounted a 30x scope?
John The last 2 bags of Starline 6 ARC brass I got were so good I don't think I'll 'prep' anymore of Starline. 9.3x62 Lapua cases weren't this uniform. Starline is really good stuff. Same here. If Starline offers a particular case I tend to buy it. Have also used a bunch of Peterson brass in the past few years, but Starline offers a wider range, and can be less expensive in the same cartridge. (Might also mention that my .50-70 trapdoor averages 2" for 3-shot groups at 100, using Starline brass and cast bullets--which ain't bad for a 158-year-old barrel with the "issue" open sights. I suspect Buffalo Bill Cody would have been quite happy with that, as he killed most of his buffalo with a .50-40 trapdoor.... Just think how good your 50-70 could be with a fast twist. Ha ha Good shooting.
I prefer classic. Semper Fi I used to run with the hare. Now I'm envious of the tortoise and I do my own stunts but rarely intentionally
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Joined: Mar 2024
Posts: 8
New Member
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New Member
Joined: Mar 2024
Posts: 8 |
IMO most brass prep falls under the category of "If it makes you feel good go ahead and do it." Years ago another Master class hi-power shooter and I carefully separated ammo into measured groups of of .001 runout and "everthing worse" loads and fire groups at 600 yards off sandbags prone at dawn when the wind was still as possible. Zero difference measured on target.
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