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Post by magnumwheelman on Apr 9, 2020 13:42:20 GMT -5
I wouldn't go cut & dried on straight wall cases vrs bottleneck cartridges... I find small case volume to be the defining point with flash hole inconsistencies... for example 25ACP out of my Contender barrel, or revolver shows a worth while difference to uniform the flash holes, as far as group sizes... same with the Hornets 17 & 22... while cartridges like 45-70 or 35 Whelen show less issues with the flash hole, as long as it is not so obstructed as to disrupt powder ignition
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Post by taffin on Apr 9, 2020 14:10:34 GMT -5
Do y’all size new cases? I do with the decapping pin in place so missing flash holes will never bite me. ALWAYS
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gsp7
.30 Stingray
Posts: 421
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Post by gsp7 on Apr 9, 2020 14:33:40 GMT -5
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Post by matt56 on Apr 9, 2020 18:23:05 GMT -5
I don’t deburr or trim handgun brass. I also don’t usually resize new brass but I got burned on some 454 Casull brass that had no neck tension with .451 bullets.
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Post by sixshot on Apr 9, 2020 22:02:04 GMT -5
I always resize new pistol brass but I never deburr handgun brass, waste of time.
Dick
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Post by doninnh on Apr 9, 2020 23:13:31 GMT -5
I started shooting in 1937, beginning reloading about ten years later it has become I confess if I could walk out the back door and shoot it would almost become load shoot. (I'm working on it) Any way it took until last year to get to shake hands with some guy named Murphy. He been watching all those years. So the point is not always to improve the size of the group and such but not to shake hands with this guy Murphy, He may want to give you something more than a handshake. Have a nice day Don K
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Snyd
.375 Atomic
The Last Frontier
Posts: 2,387
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Post by Snyd on Apr 9, 2020 23:24:50 GMT -5
nope, but I do size new brass then trim all to the same length.
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Post by wildcatter on Apr 10, 2020 20:27:43 GMT -5
I always did all my brass, even handgun,,,, till I started using Starline! I found their brass is so good their is little to gain! But old habits are to break and it will avoid ghost's!
One thing is for sure, it will never make it worse! Consistency is anal!
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Post by bradshaw on Apr 11, 2020 5:43:09 GMT -5
Do you deburr primer flash holes on new starline handgun brass? I do it on all my new bottle neck rifle brass Just deburred my new .44 spl brass. There were some burrs in them ***** What is the motive? To satisfy some theory? To attempt to re-write records set with untouched flash holes? Where is the ACCURACY CRITERIA to prove some pet theory? What exact difference is seen on a chronograph? What exact improvement is seen on the target? Apply the same time spent monkeying with flash holes to DRY FIRE. David Bradshaw
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jgt
.327 Meteor
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Posts: 782
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Post by jgt on Apr 11, 2020 9:10:14 GMT -5
Don't know, don't care. I just do it cause I can. So my cases can be "all they can be". He just ask if we did it, not prove we have to do it. I don't have to do a lot of thing I do when loading. I just want to do them. I can't see anymore, but I still shoot. Mainly because I can.
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Post by bradshaw on Apr 11, 2020 15:01:35 GMT -5
Don't know, don't care. I just do it cause I can. So my cases can be "all they can be". He just ask if we did it, not prove we have to do it. I don't have to do a lot of thing I do when loading. I just want to do them. I can't see anymore, but I still shoot. Mainly because I can. ***** Under NO circumstance should flash hole be enlarged. The one exception is for blanks and wax bullets----to prevent the primer backing out. (Recoil against a bullet is what prevents primer from backing out.) David Bradshaw
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jgt
.327 Meteor
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Posts: 782
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Post by jgt on Apr 12, 2020 10:16:44 GMT -5
Not talking about enlarging flash holes. Talking about de-burring flash holes. Yes the tool has a uniforming tip but it is in acceptable specs to use. Happy Easter.
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Post by webber on Apr 12, 2020 11:19:06 GMT -5
Many people do many things that really doesn't need to be done. If doing them flips your "happy switch" to "ON" so be it. Unless it shows an increase in the accuracy of my shooting I don't do it. As Mr Bradshaw so eloquently says, let the target be the judge (arbiter) of whether it is needed. If the target doesn't show the resulted improvement one doesn't need to waste ones time. A nap would be more fruitful. Or maybe eating a good sandwich.
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Post by bula on Apr 12, 2020 11:45:29 GMT -5
Time at the loading bench is therapeutic. Unless dangerous, I'll not call it a waste. Fuss all you want.
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Post by bradshaw on Apr 12, 2020 12:41:13 GMT -5
My response as to why I do not “de-burr” flash holes is based, as Webber states, on performance at target. In marksmanship, handloading, and gardening, the WHY? factor is, whenever possible, definitive. The bandleader is free to delve into detail to his or her heart’s content. I recall an member of the Army saying “You don’t need to clean it.” He referred to the AR-15, about to be adopted as the M-16. Apparently, lax maintenance was a selling point. Turns out the Armalite was one of the most dirt & water sensitive actions out there; that dust cover wasn’t put on it for decoration!
Nor do I care whether brass is polished----as long as it is clean.
Over the years I’ve discussed flash holes with such worthies as Bench Rest Hall of Fame’s Jim Stekl (also developed the Remington BR cartridges) and our own Lee Martin. Stekl experimented with flash hole diameters----as you may imagine, precisely drilled----and found very little difference at target. Too large, of course, vents huge pressure into the primer pocket and will wreck the case in one shot, and possibly the bolt or the action.
A few members may recall Remington releasing .308 brass with small primer pockets. These represent Remington’s feeble gesture to supply brass for the XP-100 7mm BR Rem. It still took me eight hours to form my first 100 cases. The 7mm BR with small rifle primer is a natural. Back then----1981----people started loading full up .308 Winchester with the small pocket case. Jim Stekl told me that small rifle primers weren’t enough to ignite ball powder in the .308 case. Win 748 was a main offender. Some folk formed 7mm-08 from the small pocket .308 case, with same result: misfire.
I base my response on necessity, not entertainment. Therapy is fine, too. Which is why I’m about to hop a mountain bike and throw some lead. David Bradshaw
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