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Thread: VdoMemorie-Blazing Sabot!

  1. #721
    Hello RMC, I do point that from time to time but here is a good example of Brenneke slug with a good deep roll crimp.

    Ajay Madan

  2. #722
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    W.R.Buchanan's Avatar
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    RMc: I just got BPI's Slug Loading Manual#7 and it states that a Roll Crimp pretty much always delivers less pressure than a Fold Crimp using the same load for both. It even had a chart (Pg25) with a few different combinations showing this worked the same way across many loads.

    The differences in pressures were from 100 to 1700 psi over the loads shown. Velocity differences were 15-100 fps, however they were not directly insync with the pressures.

    I wonder if they know they've contradicted themselves?

    Randy
    "It's not how well you do what you know how to do,,,It's how well you do what you DON'T know how to do!"
    www.buchananprecisionmachine.com

  3. #723
    Boolit Master

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    Quote Originally Posted by SuperBlazingSabots View Post
    Hello RMC, I do point that from time to time but here is a good example of Brenneke slug with a good deep roll crimp.

    Ajay Madan

    When loading a full bore diameter slug or round ball and using a deep roll crimp as shown, what are the chances of the projectile jumping the crimp and causing over pressure from 4x hull thickness plus the projectile diameter?
    Scott

    You can easily judge the character of others by how they treat those who they think can do nothing for them.

  4. #724
    Boolit Grand Master

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    I wondered the same thing until I tried the 0.735" RB's which if anything is going to jump a crimp they should but nope!

    So, not a definitive answer but I look at factory roll crimped Foster slug rounds and they are all basically a semi spherical nose but all roll crimped so I have to wonder just what the chances are and why these types of slugs or round balls don't jump the crimp... or don't seem to anyway.

    I would have thought a small shoulder on the slug would absolutely ensure that the crimp was opened by the slug but if the factories don't do it I have to guess it isn't necessary.

    All speculation on my part but so far I haven't experience any issues where I expected to.

    Longbow

  5. #725
    Boolit Master
    Join Date
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    Quote Originally Posted by W.R.Buchanan View Post
    RMc: I just got BPI's Slug Loading Manual#7 and it states that a Roll Crimp pretty much always delivers less pressure than a Fold Crimp using the same load for both. It even had a chart (Pg25) with a few different combinations showing this worked the same way across many loads.

    The differences in pressures were from 100 to 1700 psi over the loads shown. Velocity differences were 15-100 fps, however they were not directly insync with the pressures.

    I wonder if they know they've contradicted themselves?

    Randy
    Randy,

    I do not have a copy of that manual. However, I boldfaced what appears to be the operative phrase from your post. If the examples given in the manual were loaded in new unfired cases of the same length, then most likely the fold crimped versions had a shorter loaded length and thus a smaller internal loaded volume.

    Unless the Roll Crimp is unusually deep the normal difference between the loaded length of a roll crimped hull and a fold crimped hull is right at one quarter inch. This assumes both unfired hulls are of the same length, in which case the loaded roll crimp round will be longer and have a greater internal volume.
    Last edited by RMc; 11-05-2018 at 12:00 PM.

  6. #726
    Greetings Rmc, I don't remember as I do no longer have my loading room here in my newer home, just me and a dog named " Tiger "

    I am starting to feel,

    did I miss something by not buying Ithaca Mag 10, back then money was never a problem, now I barely pay my bills when retired, what a difference time makes ! !

    Such is life and it goes on. Both parties are crooked and corrupt but still be sure to vote all red.

    Ajay K. Madan
    Super Blazing Sabots

  7. #727
    Boolit Master
    Join Date
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    Minnesota
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    I bought a mag 10, fantastic gun. I'm thinking of buying a second.

  8. #728
    Its time to wake up, get the coffee and read on :
    Ithaca 10 Gauge Magnum vs Remington SP-10 Gauge
    http://www.goosehuntingchat.com/foru...uge-18132.html
    I did not know about the other kids on the block:
    ****Remington Model SP-10.
    *****Browning gold LITE 10
    10 gauge slug and buckshot loads, don't commit the sin of trusting photobucket with your images ever ! !





    Here for .410 lovers a treat.




    Here's A treat for 28 ga shooters:




    Be sure to have plenty of coffee ready before nose diving !
    Ajay K. Madan
    Super Blazing Sabots
    Last edited by SuperBlazingSabots; 11-10-2018 at 10:25 AM.

  9. #729
    Continued from previous post

    Is your coffee pot ready?







    Here is a treat for 20 ga slugs from 1969




    Ajay K. Madan
    Super Blazing Sabots
    Last edited by SuperBlazingSabots; 04-04-2019 at 11:02 AM.

  10. #730
    Continued:

    **--** Mind you the last ending page 63 is missing and I could only think of Rmc who could help locate it for he is very good at maintaining records.
    That issue magazine cover:


    Very important your Nitro Express has smooth forcing cone or else they would cause havoc at launch by stripping the wads and op wad, its simple solution to fix it and no reason not to do it to help things in your favour ! !
    Had the gun manufacturer not been a penny pincher then they could had taken yet another 5 to 10 seconds to smoothen the rough tools marks and could have made our life easy. Never mind. The foam came from the shirts that I buy and keeps constant outward pressure for polishing the forcing cone.





    Push the wooden dowel from the muzzle and then line up the fine sand paper with sponge through the eject port, now use a hand drill from the muzzle end and let your sixth sense help feel and guide you. You'll know when you reach the forcing cone then start the drill.

    If you want to cook your own then you might as well have your depth gauge in hand to help out. Be sure to have the wooden dowel with a fiction fit into the hull, we do not want no powder seepage while doing our measurements.


    Just pour the powder charge and insert the gauge all the way in.

    The " O " ring set from a Dollar store, choose one with a little fiction.
    Once I have my depth on the gauge I simply put my wad column next to it to see what will fit right not counting the hull space for Roll or Fold crimp, already built into the gauge ! !
    The more we learn to improvise the better we get to solving issues.

    Ajay K. Madan
    Super Blazing Sabots
    Last edited by SuperBlazingSabots; 04-04-2019 at 11:05 AM.

  11. #731
    Greetings, cutting those wads or hulls should be easy this way:

    Just find the right size socket with a slight fiction fit.
    It does a clean straight cut. Try it and you too will love it like I do.

    I'll tell you one more of my secret why I push you all for Fold crimp early on in your load development!
    **--** Pressure is our friend. Higher pressures lead to more consistent, cleaner burning loads.
    ** Roll crimping produces lower pressures due to less resistance from the roll crimp than fold crimp.
    I wanted higher pressure without adding more powder ( Ginger )

    Hoping it helps.
    Ajay K. Madan
    Super Blazing Sabots
    Last edited by SuperBlazingSabots; 12-09-2018 at 11:24 PM.

  12. #732
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    Ajay: thanks for the tubing cutter tip.. I can do that.

    Randy
    "It's not how well you do what you know how to do,,,It's how well you do what you DON'T know how to do!"
    www.buchananprecisionmachine.com

  13. #733
    Boolit Grand Master

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    I mark the wads for length then slide a wad into a piece of old 12 ga. barrel and use a utility knife to cut the petals off at the face of the barrel. A piece of 1/2" CPVC pipe is used under the wad to hold position for the cut. It's simple and it works.

    Longbow

  14. #734
    Boolit Master gpidaho's Avatar
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    Ajay: I walked into a local pawn shop last week with shooting friend Wes and spied a Ponsness-Warren loader just like the one on the cover of the Handloader magazine that you posted. The price marked seemed more than fair so as we do, I offered $40 less. Take it the man said, and I made the purchase. Only upon getting home did I realize that I was the proud new owner of a press built for 10ga. 3 1/2" shells not 12ga. as I'd thought. Guess I'll have to buy a big thumper to get out of this one. LOL Gp

  15. #735
    Greetings and congratulations Gpidaho, get the Browning or Ithaca auto loader in 10 ga and let the fun begin!
    Start checking Lyman 525 slug in heavy walled wads to see how it would fit in a 10 ga barrel.
    You know you can order the Lyman in 12 ga full bore dimensions and with a thicker wad, that's what I'll do if I was you.

    I wish you the very best.

    Ajay K. Madan

  16. #736
    Boolit Master gpidaho's Avatar
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    Ajay: I E-mailed P-W Sunday afternoon about converting the press to 12ga. This morning (Monday) at 10 AM I received a phone call from a very helpful gal named Jean. How's that for customer service? It seems that a simple caliber conversion and a wad guide is all I need to have this great press cranking out 12ga. rounds. This until(if) I can afford the big gun. No alterations other than that needed. My impulse buy is looking much better this morning. According to P-W the press I bought now lists for $525 so even with the price of the alterations it seems I'll be in this Cadillac of a press for around $300. I'm beginning to lose my buyers remorse. LOL Gp

  17. #737


    Best regards,
    Ajay K. Madan
    Super Blazing Sabots

  18. #738
    Boolit Master

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    Hope you have a great new year AJ.
    "My main ambition in life is to be on the devil's most wanted list."
    Leonard Ravenhill

  19. #739
    Boolit Buddy
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    Ajay, ... all the best for 2019!!

  20. #740
    Boolit Grand Master

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    Yes, Happy New Year to my Cast Boolit family!

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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