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  • Larry Gibson's Avatar
    Today, 11:37 AM
    If you add 3% tin to that you'll have very close to #2 alloy which will not be quite as brittle. The BHN will increase to 14 - 16 also.
    7 replies | 135 view(s)
  • Larry Gibson's Avatar
    Today, 11:33 AM
    It's just a function of the softer alloy pushed as hard as I push them. I've used that alloy for years in 7mm up through my 375 H&H at 1900 - 2200+ fps. They work for me especially in my 35 Remington. Here's two 5 shot groups at 100 yards to...
    4 replies | 25 view(s)
  • Larry Gibson's Avatar
    Today, 11:04 AM
    Add 2% tin to your COWWs for targets loads. Simply mix that alloy 50/50 with lead for hunting bullets. It's what I do with my 35-200-FN RCBS bullet in my M91 35 Remington. I use same load for both so zero is the same. I can shoot the practice...
    4 replies | 25 view(s)
  • Larry Gibson's Avatar
    Yesterday, 05:26 PM
    Larry Gibson replied to a thread 45- 70 +p? in Factory Rifles
    The bullet on the far right is a commercial cast bullet (20-1). It is a 550 gr bullet. Bullet #3 is a 457483 which is just the GC'd version of the 457124 (bullet #4) as you surmised.
    63 replies | 1375 view(s)
  • Larry Gibson's Avatar
    10-18-2017, 10:12 PM
    Larry Gibson replied to a thread 45- 70 +p? in Factory Rifles
    How about a Rapine 460210 over 6 gr of Bullseye for a plinker/small game load? It's the bullet on the left. It's a real screamer at 990 fps and thumps pesky critters pretty good too!
    63 replies | 1375 view(s)
  • Larry Gibson's Avatar
    10-18-2017, 10:05 PM
    Both reasons with truly "cat's sneeze" loads. With loads such as this there is sometimes a benefit of better ignition, sometimes not. It seems to depend on the primer used more than anything. With Rem 9 1/2s and CCI 200s it appears beneficial...
    16 replies | 577 view(s)
  • Larry Gibson's Avatar
    10-18-2017, 08:29 PM
    With just 20 gr Alliant 2400 in the '06 case I use 1 1/2 gr Dacron.
    16 replies | 577 view(s)
  • Larry Gibson's Avatar
    10-18-2017, 07:25 PM
    That is correct. The problem was understood in the very late 1890s. Primers with fulminate of mercury were discontinued and non-mercuric primers were introduced. That solver the problem with smokeless powder cases being wrecked by the mercury. ...
    9 replies | 189 view(s)
  • Larry Gibson's Avatar
    10-18-2017, 05:15 PM
    Here's 2 sighters then 20 shots for score I shot today out of my M1903A1 Type II National Match 30-06; Bullet; 30 XCB cast of #2 alloy, Hornady GC, 2500+ lube, 164 gr. Case; LC 62 Match w/ flash hole drilled. Primer; WLR Powder; Alliant 2400,...
    16 replies | 577 view(s)
  • Larry Gibson's Avatar
    10-18-2017, 05:05 PM
    Hodgdon's 60% rule basically applies to jacketed bullet use. Note the technician responded with; "It is very likely that a primer will blow the bullet out of the case. It is almost a certainty......The problem comes when the loads are so light...
    7 replies | 169 view(s)
  • Larry Gibson's Avatar
    10-18-2017, 10:23 AM
    That should be M1906 ammunition, the stripper clips being a possible clue. Have you pulled a bullet?
    40 replies | 1018 view(s)
  • Larry Gibson's Avatar
    10-17-2017, 04:51 PM
    That does not mean it was loaded to higher pressures than M1 ball because they weren't. They were supposed to be loaded with the M1 174 gr bullet. Notice the box does not identify it as M1 or M2 but as ".30 Ball Cartridges". They also were...
    40 replies | 1018 view(s)
  • Larry Gibson's Avatar
    10-17-2017, 02:23 PM
    I suggest the use of a Dacron filler instead of the wad as used in the old Lyman manual. The Dacron filler is beneficial and I use it. Many don't use a wad or filler but whether you find it beneficial depends on the weight of the cast bullet you...
    4 replies | 205 view(s)
  • Larry Gibson's Avatar
    10-17-2017, 01:59 PM
    "The doubt is : may I enlarge flashole avoiding dacron filler?" The Dacron filler will still be needed for N110 to ignite and burn efficiently under that light of a cast bullet in the 7.65x53 case. The enlarged flash hole may help a little but...
    14 replies | 522 view(s)
  • Larry Gibson's Avatar
    10-17-2017, 12:07 PM
    Larry Gibson replied to a thread 45- 70 +p? in Factory Rifles
    Maybe, maybe not.....but then I'm not shooting a TD or lever action am I so why should I limit myself?. Why would I load a 300 Win mag down to 30-30 ballistics and "bet" it might work? If I wanted to hunt with the 45-70 in a TD, which I have, I...
    63 replies | 1375 view(s)
  • Larry Gibson's Avatar
    10-17-2017, 11:55 AM
    I don't think that's a "myth busted" MT Gianni. The short stubby pistol WCs shot in 18 3/8" twist barrels are not very stable past 50 yards and many times make slightly oblong holes at 50 yards. The much longer .30 caliber 311440 will be shot...
    7 replies | 179 view(s)
  • Larry Gibson's Avatar
    10-16-2017, 08:42 PM
    Yes it is true the arsenals switched from the recommended extruded powder to ball powder. The residue left by the powder was a calcium/carbon deposit that was very hard. The gas piston of the M16 series is part of the bolt with the cylinder being...
    51 replies | 1109 view(s)
  • Larry Gibson's Avatar
    10-16-2017, 08:16 PM
    "Are you trying to say the 14 twist didn't stabilize the bullet and it tumbled causing more damage? Might be where the story of smooth bore M16's got stated." Not stating that at all. I didn't mention anything about a "smooth bore M16" either. ...
    51 replies | 1109 view(s)
  • Larry Gibson's Avatar
    10-16-2017, 07:22 PM
    Larry Gibson replied to a thread 45- 70 +p? in Factory Rifles
    My 400 and 500 gr loads for my 450-400-70 Siamese Mauser run 49 - 55 ft/lbs of recoil. When I fire the 500s from a sitting position they roll me over backwards.....lots of fun...... No application? Obviously you've not hunted elk in a pole...
    63 replies | 1375 view(s)
  • Larry Gibson's Avatar
    10-16-2017, 05:02 PM
    "When that early Vietnam issue 5.56 ammo was used, and if it performed right, it blew a mighty big hole in the enemie's body that a 7.62x51 wouldn't do." Have to disagree. I was in Viet Nam in early '65 and then on to other target rich...
    51 replies | 1109 view(s)
  • Larry Gibson's Avatar
    10-16-2017, 11:36 AM
    Larry Gibson replied to a thread What are they? in Cast Boolits
    Appears the cartridge photo's are with the wrong headstamp photo's? The MF FA 83 appears to be 7.62x51 made at the Footscray or Maribyrnong ammunition plant in Australia. The stripper clip on it is of M14 style. Note there is no + with the...
    7 replies | 362 view(s)
  • Larry Gibson's Avatar
    10-15-2017, 10:42 AM
    He certainly is correct about minor alterations of the load having influences on the load. His example especially with the small capacity case of his 'cat. I found that out a long time ago in '74 when I got my 1st Oehler chronograph with the 22...
    124 replies | 3233 view(s)
  • Larry Gibson's Avatar
    10-14-2017, 07:38 PM
    Use an RCBS X-Die to FL size. You won't have to trim and cases will give many firings.
    13 replies | 1007 view(s)
  • Larry Gibson's Avatar
    10-14-2017, 07:34 PM
    Using a lathe with a collate and using a drill in the headstock or a counter sink works well. I have used my mini lathe to do so. Getting the hole centered and parallel to the bullets axis is essential to accuracy.
    25 replies | 719 view(s)
  • Larry Gibson's Avatar
    10-14-2017, 07:30 PM
    Nope, nothing new......just a lot that most reloaders don't know, especially those who just get load data off the internet........
    124 replies | 3233 view(s)
  • Larry Gibson's Avatar
    10-14-2017, 07:19 PM
    44Mag#1 Sorry had to close that last post out before I was finished. Back to your question; assuming you have a Ruger 44 Mag with 7 1/2" barrel and a custom mould that casts a 250 gr SWC. That specific mould is not listed in any of the...
    124 replies | 3233 view(s)
  • Larry Gibson's Avatar
    10-14-2017, 02:20 PM
    And "pleased" you should be.....well done.
    16 replies | 577 view(s)
  • Larry Gibson's Avatar
    10-14-2017, 02:13 PM
    44MAG#1 Since no one has brought up handgun data let me be the goofy one. We will take Speer data and Lyman data. In 44 Magnum data Speer they list 9 to 11 gr Unique with Speer cases, CCI 300 primers and the RCBS 250 Keith at a 1029 to...
    124 replies | 3233 view(s)
  • Larry Gibson's Avatar
    10-14-2017, 10:38 AM
    Any commercial 223 with a 12" twist probably has a SAAMI spec 223 chamber.
    35 replies | 913 view(s)
  • Larry Gibson's Avatar
    10-13-2017, 10:13 PM
    44MAG#1 To answer your questions; Do we know if Speer or Hornady uses multiple factory rifles to test velocity in? If they grab one out of the rack to use to list velocity from how do we know that it isn't a "slow" barrel as you said we know...
    124 replies | 3233 view(s)
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About Larry Gibson

Basic Information

Date of Birth
April 15, 1947 (70)
About Larry Gibson
Biography:
My first reloads were with cast bullets in the 30-30 when I was 14.
Location:
Lake Havasu City, Arizona
Interests:
Shooting, what else?
Occupation:
Retired U.S. Army. Currently contract Research and development of ammuntion and relaods

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Larry Gibson

“Deficient observation is merely a form of ignorance and responsible for the many morbid notions and foolish ideas prevailing.”
― Nikola Tesla

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check