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Flash hole de-burr


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Reloaders of the world...

 

Do you, or do you not, de-burr the flash hole as part of your case preperation?

 

If so, why do you do it? and have you seen an improvement in consistancy?

 

Well i never even knew what it was until the other weekend, got these results with my .222, plus neck turning, still room for improvement, depends how anal you want to get :stupid:

5 shot groups

http://forums.pigeonwatch.co.uk/forums/ind...showtopic=31477

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Thanks Kip, I am getting slightly erratic results from the 6.5 at the moment, even though I am still fiddling.

I got talking to a guy yesterday at the range with years of experience who said my groups looked liked inconsistant ignition - so as it is an easy step I thought might give it a go. I am not looking for bench rest accuracy just an improvement on factory ammo - which I am not always getting at the moment.

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Same here Stu, just want consistent home loads, but how far do we go??

With my first attempt at reloading i bought Full Length dies, but after getting a case stuck in it, i replaced it with a neck size die, and so far i have better results. Still more to play with, but once i find the best combination i will stick with it.

 

Just another thought what primers are you using??

 

Give Tommy Trucker a PM and ask what he is using in his 6.5, i know he has awesome results

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Might be worth doing first and then if it's no better go for the flash hole de-burr :stupid:

 

I am still pondering about getting a neck turning tool and flash hole de-burrer. I have made up some rounds of 20grain and neck sized only, using Fed small rifle 205 primers, but the weather has been naff to try them out, hopefully sometime this week.

Not started to reload the .270 yet but i can see that will be fun :blush::good:

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Stuart

 

I'm always picking folks brains when the opportunity arises and some of the detail they go to get an ultimate holy grail of a combination is unbelieveable and leads me to the conclusion that you could let it get wrapped around your head if your not careful .

Whilst batch wieghing all the conponents ,tumbling the brass ,using a ogive guage etc! can all help I achieved this .223 four shot group at 95 yds the other day without being over fussy

post-1945-1176227724.jpg

I do however use TWO sets of digital scales because even the best £100 + quality ones go out of calibration during the duration of powder measuring without you knowing .The chances ot 2 sets going haywire at the same time is very slim .

I fairly new to this myself but where have you been keeping your powder over the winter months .I have only recently moved mine back into the garage has it can get very damp in there .

 

Good Luck :drinks:

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The .223 seems to shoot brilliantly no matter what.

 

I am now thinking the 6.5 is probably more down to me than the loads + the fact I had targets with very small black squares to aim at, and I remembered from last time at 100 yards my reticle obliterates that square B)

 

Oh well, just have to get down there again some time :drinks:

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Hi Stuart,

 

I did the flash hole de burr routine with a set of new cases I bought - I think it made a difference as these were the first new cases I have used for reloading (always reloaded factory once fired before & did not de burr).

 

Anyway, the tool I used was a metal drill bit - worked perfectly and I could feel the uneven metal being removed so I am happy with the routine - it has to add consistency, important to all aspects of the process.

 

As a one off job for new cases only I can live with that.

 

- I have a fine cross hair on one rifle (great in daylight) and a thick (No. 4 reticle) cross hair on another rifle (great for twlight and lamping). I often zero these together and find the thick cross hairs off putting - to get around that I use a diamond target with a white centre so nothing for the cross hairs to obliterate, this helps my confidence in the kit which helps with better shooting.

 

Cheers

AndyCM

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Out of my own curiousity I cut a cartridge case open last night, and there is a relatively huge burr on the inside where the flash hole has been drilled through :drinks:

 

If I was any good at macro pictures I wiould post it...

 

These are Federal once shot cases, so I will be removing that as it is a big job and may make a difference.

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I use a flashhole deburrer, it helps for uniform ignition, also when starting on a new lot of cases, I ALWAYS F/L resize in the first instance and use a primer pocket uniformer , this ensures that the new primer does not protrude from the head of the case, it's surprising how much can be removed before uniformity is reached.

I then neck size, when I've fire formed 100.

I may be fussy, but if I get a supply of new or once used cases, after tumbling, F/L sizing, primer pocket uniforming, flash hole deburring and case trimming, I then weigh them, to try to get a batch of reasonably uniform weight, I may discard 25% of cases(These can be loaded and used for barrel fouling). This eliminates variations in case wall thickness.

This way I am trying to make every round as near as identical to each other.

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I will admit to not knowing much about reloading and personally do not see the point as I am a target shooter and everyone is issued the same ammo which is usually NATO standard issue.

 

But surely the weight of a case makes absolutely no difference whatsoever.

 

I can understand the bit about different weight bullets or differing ammounts of powder etc, and even to a point the flash hole having a burr on it but case weights? ? ? ? surely that is getting far too anal as any round will shoot better than most people.

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I could type all this out, but it will be easier for readers to have a look at this:-gunnersden

Shooters in this country have to realise, that because of restrictions on rifle shooting, the people over the pond and much of the rest of the world, have a lot more expertise and experience on reloading and a lot can be gained to browsing their sites. A very good forum site(Of which I am an active member), including a ballistic program, can be found at:-Huntingnut. I have given, and learnt a lot from this site, and, as a lot of members come from all over the world, experienced is shared an a extremely friendly basis

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Out of my own curiousity I cut a cartridge case open last night, and there is a relatively huge burr on the inside where the flash hole has been drilled through :drinks:

 

If I was any good at macro pictures I wiould post it...

 

These are Federal once shot cases, so I will be removing that as it is a big job and may make a difference.

 

Right, hopefully the burr to which I referred should be visible in these pictures B)

 

It is almost impossible to capture with a camera but here goes:

 

Before cleaning

 

case_020__Medium_.jpg

 

And after (it's the black ring, if you pardon the expression)

 

case_022__Medium_.jpg

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