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  • JDNC's Avatar
    Today, 08:08 AM
    No my primers are not backing out. I remembered that I had a device with dial indicator that was for determining headspace for contenders and that it would work perfectly for determining how much the case was below the barrel face. I also had a...
    21 replies | 537 view(s)
  • JDNC's Avatar
    03-28-2020, 08:12 PM
    BTW, if I have excessive headspace it going to be due to the rim recess being cut too deep as the breach is touching the barrel extension when closed.
    21 replies | 537 view(s)
  • JDNC's Avatar
    03-28-2020, 08:07 PM
    The breach block closes against the the barrel. I have tried aluminum discs on the case but it’s difficult to handle and measure. I’ll try tape and see if I can get consistent measurements. As for the aluminum foil discs I can’t get consistent...
    21 replies | 537 view(s)
  • JDNC's Avatar
    03-25-2020, 10:23 PM
    Chris, That’s interesting. I’m looking into how to measure the headspace now. Thanks JD
    21 replies | 537 view(s)
  • JDNC's Avatar
    03-25-2020, 08:51 PM
    Another question is what’s considered excessive headspace in a rolling block. If the rim recess is cut 0.070” it’s going to have 0.004” right off the bat because the rim thickness on the brass I’ve checked is 0.066”.
    21 replies | 537 view(s)
  • JDNC's Avatar
    03-25-2020, 08:43 PM
    Kurt, I’ll try that but it’s going to be difficult as to the firing pin and holding the breac closed without having the hammer down. Wouldn’t a case without a spent primer work with the hammer down?
    21 replies | 537 view(s)
  • JDNC's Avatar
    03-25-2020, 05:37 PM
    In a nut shell, at this point I’m trying different things to see what may be causing the case stretching. As for FL sizing I just tried it to see what would happen and found little difference. I too, know that fire forming the brass and not FL...
    21 replies | 537 view(s)
  • JDNC's Avatar
    03-23-2020, 07:49 PM
    Thanks for the input. Just needed to know what to expect. My cases are stretching around .005” first first and second firing (second being fire formed unsized. This is a factory Pedersoli chamber .480” at the end. I’m not sure if I’d be...
    21 replies | 537 view(s)
  • JDNC's Avatar
    03-22-2020, 10:29 PM
    Id like to know whats considered to be normal case stretching for the 45/70 with factory chambers using paper patched to bore bullets. I know there are many variables in reference to FL sized and fire formed brass and wad stacks but would...
    21 replies | 537 view(s)
  • JDNC's Avatar
    03-22-2020, 10:16 PM
    I have a Pedersoli RB 45/70 which doesn’t have a freebore but has a gradual leade angle/throat. So far using a .442 diameter patched to .451” it gas cuts and gives blow back except when using a .125” lube cookie. Also the brass stretches pretty bad...
    6 replies | 1666 view(s)
  • JDNC's Avatar
    03-22-2020, 05:46 PM
    I know this post is old but what was the advice?
    6 replies | 1666 view(s)
  • JDNC's Avatar
    03-20-2020, 12:33 PM
    rfd, In ref to the bore gophers, are you wetting just the front felt or both?
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-17-2020, 11:52 AM
    I checked to see if I could use a 30/06 FL die tomclose down the mouth but the case wont quite go in. I also tried a Dillon 45acp taper crimp die. It will just begin to enter the die but I haven’t tried it yet. I might have some other die to try and...
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-17-2020, 10:48 AM
    rfd, I took the delrin oring ends off the baco wipes and put them on the gophers before I found neoprene washers and nylon nuts and other that adding a little extra length they worked fine.
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-17-2020, 08:57 AM
    Rfd, I’m familiar with what some call the pp chamber and understand how much easier that would be. I actually shot this rifle with gg bullets and I can’t remember having any stretching problems. I’d really like to get away from the whole...
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-16-2020, 09:25 PM
    BTW It appears after two firings with lube cookies the stretching stops or is only a thousandth or two. Where did you get the modified taper crimp die?
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-16-2020, 09:21 PM
    Rfd, I’ve been using a short taper crimp die and I can’t reme the manufacture as I’ve got so many dies out that I’m trying. But I will say that I’ve even used no crimp and I get stretch with the poly wads. After the trouble with the Starline...
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-15-2020, 01:53 PM
    I decided today I’d give LD poly another try. I loaded 83hr of OE 2f in both a shortened Starline 45/90 case and also a WW 45/70 case both had been fire formed. In the 45/90 case I used one 0.060” ld poly wad and in the WW 45/70 case I used a...
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-14-2020, 10:52 AM
    I might add I’m fire forming new brass during all this.
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-14-2020, 10:50 AM
    I’m patching to bore with a baco 441520m (I think that’s the right #) with #9 onion skin paper. If I get gas cutting the paper will be black and I get leading not to mention the bullet will go off target. So I can’t really leave a bell as I’m not...
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-13-2020, 08:31 AM
    Dave is your chamber a standard gg chamber? I also tried a .060” fiber with 1/16” Napa rubberized cork and I’m back to gas cutting!
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-13-2020, 08:23 AM
    Dave, thanks I’ll try that. Recently, I’ve found that a grease cookie made of thin card material (.013”) and .125” lube is sealing the chamber enough to prevent any blow back around the case mouth and very little case stretching. Actually...
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-11-2020, 09:57 PM
    Yes, im also brushing the interior. Now, I’m not polishing if that’s what you mean. Today I fire formed using a lube cookie and had no blow by or leading. Shot very good too and only stretched about 0.005”.
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-10-2020, 01:36 PM
    Well today I took that same win case and continued testing. I ultra sonic cleaned after every shot. The original coal was 2.102” prior to the first firing and after the first firing stretched 0.005” to 2.107”. My second firing was with the same...
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-09-2020, 08:53 PM
    Still in the process of diagnosing this problem. Upon further investigation the method I was using to check headspace was incorrect. The hammer when down has the breach block locked solid. I’m going to try another way to check it. As for a...
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-09-2020, 09:41 AM
    Well boys and girls I think I found the problem with the help of all of you. After Lead pots pictures I got to thinking that the location of the separation ring is where most brass separates due to headspace. So I decided to try and check the...
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-09-2020, 07:41 AM
    Lead pot, That’s exactly what I’ve got with two firings! I’ve got some Win 45/70 brass that I’m going to experiment with before I buy more brass. indian joe, I’ve tried both and had same results. I thought the HD would be better but I...
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-08-2020, 06:27 PM
    One other thing which I don’t think was a cause but I’ll mention it is that I was using ballistol just a squirt in a container with water that I wet my patches in. Probably 500:1. But it was patched out until the patches squeaked and grabbed in the...
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-08-2020, 06:16 PM
    Well, back inside after a beautiful afternoon shooting and I can’t think of one word to describe my felling other than disgusted. Lol In all my 50+ years of handloading I’ve never seen anything like it. Again my load is 82 gr OE 2f drop tubed...
    44 replies | 2818 view(s)
  • JDNC's Avatar
    03-08-2020, 12:52 PM
    EDG, My experience with smokeless is somewhat the same. I also agree with you in ref to the powder and patch grabbing the case wall. I guess what I’d like to know is if I trim near the chamber length will this stop some of it. 0.013” every firing...
    44 replies | 2818 view(s)
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About JDNC

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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