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Post by Lee Martin on Jan 27, 2015 22:39:08 GMT -5
.45 Colt: Cast .452" 335 gr. LFN GC seated deep over 20 gr./H110 in Fed brass with WLP primer. Col=1.548". Roll crimp on ogive. Minor increase of .010" in seating depth increases velocity about 10 fps, with little or no affect on group size at 100 yards.  Ruger 03 .45 Colt with cast .452" 335 LFN GC over 20/H110. Deep seated for COL=1.548". Distance on snowshoes 128 paces. Since David is practiced at pacing in yards and meters, including with snowshoes, and this is very close to actual yardage. Temperature around 17-degrees fahrenheit. Revolver rested over a somewhat springy tree bough, squeeze at bottom of breath. Point of Impact corresponds with elevation hold. Front sight----.125" wide----nearly covers cardboard. 128 paces 5x5 shots=6.5" 4x5 shots=4.4"  The 03 enjoys a good walk, as long as it gets to play.  The playground.  Standing breech of Ruger 03 with rim signature of .45 Colt. However, most of the fowling is blastback from lower pressure .45 ACP.  -Lee www.singleactions.com"Building carpal tunnel one round at a time" |
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Post by bradshaw on Jan 29, 2015 10:14:12 GMT -5
This .452" 335 grain Long Flat Nose Gas Check flies straight, at least to 100 yards. Doesn't care whether it's seated to crimp in the cannelure or seated deep to crimp on the ogive. And, like the .452" 276 gr. Volcano, it seems unbothered by the firm .451" chamber exits of the Ruger 03. Hard freezes we've been having challenge the shooter much more than his pistol or ammunition. At the moment, the 335 LFN GC is the tightest round. Which may only mean that the Ruger 03 and the FA M83 agree on the round's consistency, which translates into shootability.
Hodgdon HS-6 remains an all-time medium burn revolver propellant. Deep seating a cast bullet means less powder does the same thing. Deep seating 335 LFN GC over 20/H110 feels exactlingly uniform down to 20 below ZERO. Haven't tried it colder. Basically, I seat the bullet to where I want to roll crimp on the ogive, then adjust powder to base.
Gas check and firm throat: Both .452" 276 Volcano and .452" 335 LFN are gas check. Believe the gas check is a good thing in presence of .451" chamber exits.
David Bradshaw
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Post by seancass on Jan 29, 2015 12:38:48 GMT -5
Gas check and firm throat: Both .452" 276 Volcano and .452" 335 LFN are gas check. Believe the gas check is a good thing in presence of .451" chamber exits. David Bradshaw David, i hadn't seen this mentioned, sorry if it was. Are these bullets home cast or commercially available? |
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Post by bradshaw on Jan 30, 2015 0:32:03 GMT -5
seancass.... these bullets are privately cast in LBT molds, then pushed through a Star sizer. Hardness about 18 Brinell.
David Bradshaw
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Post by 2 Dogs on Jan 30, 2015 9:06:22 GMT -5
David, Im curious why you use a red insert front sight. It can't be helping....?
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Post by bradshaw on Jan 30, 2015 10:08:37 GMT -5
Fermin.... habit, tradition. Any iron sight is a compromise to milk a sharp sight picture from adversity. Have taken more whitetail with various M-29s than any other handgun, all, or most all, with the M-29 red ramp/white outline combination. Now, catching up in age to the Sphinx, and thanks to your elbow to the ribs, we'll try another Ruger insert for the next essay. Probably one of the early black steel Redhawk ramps. Or pluck the steel post off the 5-1/2" Redhawk.
The Model 29 sight arrangement worked wonders in mottled light of the woods, where black sights often washed out. Some of the recent shooting herein reported was under rather severe cold, colder than indicated, too cold to pull the camera from its sack in my armpit. Strangely, shooting at 100 yards-plus against falling dusk, the Redhawk red ramp washed out. Fight to seize a sight picture, a fight to mash breath and sights and squeeze into the same second----before it all evaporates.
Having tried the Redhawk sight pack on Redhawk, SRH, Ruger 03, and Hunter----red insert, dayglo orange, white, baby blue, black plastic, yellow, and black steel----you just may drag me kicking & screaming back to black.
David Bradshaw
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Post by 2 Dogs on Jan 30, 2015 10:20:39 GMT -5
Screaming? Let's please keep what dignity we have here Sir....
Unless he has discontinued it, I got an undercut blade from Dave Clements for the RedHawk dovetail.
Funny, but a true sixgunner goes out to shoot no matter what. Still, here in deep S Texas, I have all the opposite problems. Sweat burning my eyes, great salty drops on my glasses, and of course the fight to maintain consistent grip while NOT squirting the stocks out of soaking wet hands.
Still, I hate the colored inserts. In ultra bright and then in contrast subtly dimmer plain old bright sunlight the day glo blades seem to change size on me confounding my ability to shoot decent groups. And while I may be just a bit your junior, I have a very uncooperative cataract in my dominant eye.
So, a tip of my hat. Stay out there, and keep working. There are some of us here who deeply appreciate your toil.
Besides, the only other option is to stay home and watch TV.
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Post by 2 Dogs on Jan 30, 2015 10:23:45 GMT -5
As an aside, for those who are reading carefully, a flat black sight will ALSO change your point of impact depending on where the sun is shining. Just not as badly in my opinion or experience as the colored ones.
We cant all be Iron Men like Mr. Bradshaw.....
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Post by sheriff on Jan 30, 2015 11:55:58 GMT -5
I do admire your tenacity Mr Bradshaw. Anymore, just a few degrees below freezing and my hands ache to the point that I forgo any serious shooting. I began my law enforcement career using 'Smiths with red inserts and have grown used to them. As a creature of habits, both good and bad, I 'paint' my black blades with red (or Orange) more often than not.
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Post by bradshaw on Jan 30, 2015 14:06:43 GMT -5
Sheriff, and aiming this at Fermin too....
the Baughman red ramp standard to the M-29 and henceforth available as an option, was and is the best of the red ramps. Something just a hair luminous to the S&W ramp, worked like a charm. My eyes aren't so young anymore... seventy, to be exact, throwing a blur on the white outline rear. During the early days of handgun silhouette, folk tried every combination of of paint to see the sights clearing over the ever-changing light condition normal to a match. Finally, nearly everyone came around to black sights, with a Patridge front preferable to the ramp. In battle to secure a categorical home for revolvers in silhouette, I brought my M-29 8-3/8" to the IHMSA 1978 International Championships. The battle between S&W and Ruger churned at full steam, but we won't get into that. Smith & Wesson had installed Patridge front and plain black blade sights on my 29, along with a narrow trigger. During the worst wind ever experienced at the internationals, my 29 prevailed. Edna Huff of Pennsylvania, also shooting an M-29 8-3/8", stiff-armed the panic which paralyzed many competitors to lay down some hard-boiled fire and decisively take second revolver. There was no official Revolver category, we were in open battle with production single shots, yet S&W, Ruger, Federal, Hornady, Speer, and others paid particular attention and the prestige was high.
Temperatures reached 106, with a 20-30 mph 9 o'clock wind for two of the four days from the first Commence Fire! to the last Cease Fire! Anyone shooting a revolver the two calmer days had a near cake walk. Edna Huff and the present writer did their revolver work into a straight-flag wind that bent their Sierra .44 240 JHC's four to seven feet at 200 meters. Production shooters squeezing off .30-30's and .30 Herrett's watched their bullets bend two feet at most on the rams. (The 7mm TCU hit production in 1979. The 7mm International Rimmed and other slippery bottlenecks followed the 7mm TCU.)
One of these days we'll discuss exactly how sunlight affects Point of Impact.
David Bradshaw
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cj3a
.30 Stingray
Posts: 403
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Post by cj3a on Jan 30, 2015 18:25:35 GMT -5
Those pictures make me feel cold. I was in Lyndonville Vt. a few weeks ago for a funeral. Burial will be in the spring beacause of frozen ground.
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Post by bradshaw on Jan 31, 2015 5:44:32 GMT -5
cj3a.... a backhoe can't tell dirt from concrete. Right now we're locked in below ZERO. Put an old Redhawk blue steel ramp insert on the Ruger 03. We'll see whether it shifts POI and report to Fermin.
Sheriff.... you need two cups of coffee, first one to warm your trigger finger, second cup to drink. 2 Dogs will need an ice pick to chop the sweat off his glasses. Folks with scopes are reminded to NOT exhale as they raise their weapon.
David Bradshaw
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Odin
.375 Atomic
Posts: 1,099
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Post by Odin on Jan 31, 2015 16:54:07 GMT -5
...During the worst wind ever experienced at the internationals... Temperatures reached 106, with a 20-30 mph 9 o'clock wind for two of the four days... Only in Salina... This place can be brutal for the sixgunner bent on actually hitting what he aims for. Rod |
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Post by jayhawker on Jan 31, 2015 18:09:13 GMT -5
Grew up on a ranch an hour NE of Salina, KS.
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Post by bradshaw on Feb 1, 2015 13:30:32 GMT -5
Rod.... you nailed it: Salina, Kansas. Amazingling, for the two days the wind BLEW, it came right out of the Rockies like a rocket, straight nine o'clock, certainly hitting 35+ mph at times. Some revolver shooters failed to respect the wind, and hit the ram to right of the one they were on, with some rounds toppling a ram two rams to the right. The wind hardly ever waved from 9 o'clock. Couple of times it did, and silhouettes fell like Jerry Lee Lewis dragging his hand across the keyboard.
Knew it was going be a rough day when I opened my motel room door that first morning. Wind ripped the door out of my hand, flapped it against the wall. Started on rams at 200 meters with 14-clicks left windage, progressing to 18-clicks. S&W sight looked ready to fall off. Add one-foot left windage and you have the hold for rams.
To give an idea the sound of that wind, no one could hear range commands.
David Bradshaw
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