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Thread: Which Powder Bar To Use-RL550B

  1. #1
    Boolit Master

    alamogunr's Avatar
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    Which Powder Bar To Use-RL550B

    I'm slowly getting familiar with the 550B that I obtained used. I only reload handgun cartridges on it and low to medium loads only. The manual says: "Rule of Thumb: Use the large bar whenever possible". My loads are always under 20 grains, which is what the manual says is upper end for small bar.

    I really haven't had any problem leaving the large bar installed but can't help feeling that the small bar would be more appropriate. Advice?
    John
    W.TN

  2. #2
    Boolit Master
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    Use the small bar. I use mine up to 15 gr. The large one above that. Works grest in my case but it may vary between powders

    Sent fra min SM-G930F via Tapatalk

  3. #3
    Boolit Master


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    Agreed.
    Sometimes life taps you on the shoulder and reminds you it's a one way street. Jim Morris

  4. #4
    Boolit Master

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    Thanks!
    John
    W.TN

  5. #5
    Boolit Master






    Lloyd Smale's Avatar
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    I do the same but for most powders my cut off for the small bar is 12 grains.
    Soldier of God, sixgun junky, Retired electrical lineman. My office was a 100 feet in the air, closer to God the better

  6. #6
    Boolit Master


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    I use the small bar for 17.1g of 2400 over 125g JHP in 357Mag.
    I use the large bar for 20.1g of 2400 over 240g JHP in 44Mag.
    L.E.C.

  7. #7
    Boolit Master

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    Quote Originally Posted by L Erie Caster View Post
    I use the small bar for 17.1g of 2400 over 125g JHP in 357Mag.
    I use the large bar for 20.1g of 2400 over 240g JHP in 44Mag.
    That makes sense to me. The reason I asked the question, I'm getting ready to load a bunch of 9mm with 4±gr of Red Dot or Promo with the Lee 358-105. Not my load but recommended by someone on this board. I guess I was using somewhat less than common sense in reading the Dillon manual.

    Based on my needs, I doubt that I will ever put the large bar back in any of my setups.
    John
    W.TN

  8. #8
    Boolit Man arclight's Avatar
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    Quote Originally Posted by alamogunr View Post
    That makes sense to me. The reason I asked the question, I'm getting ready to load a bunch of 9mm with 4±gr of Red Dot or Promo with the Lee 358-105. Not my load but recommended by someone on this board. I guess I was using somewhat less than common sense in reading the Dillon manual.

    Based on my needs, I doubt that I will ever put the large bar back in any of my setups.
    Sometimes, the large charge bar can help with smaller charges of difficult to meter powders. Otherwise, the above advice applies.

  9. #9
    Boolit Master
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    The first thing to learn about reloading is that almost EVERY article and manual deals with RIFLE reloading. For RIFLES, the Large is usually the best option. Always look at the pictures if you don't know if they are talking rifle/bottleneck or pistol/straight-wall.

    Dillon Precision manufactures four types of powder bars.
    1. Extra Small – use for less than 3 grains of powder
    2. Small – use for 3 to 20 grains of powder
    3. Large – use for 20 to approximately 45 grains of powder
    4. Magnum – use for 50 or more grains of powder
    The extra small powder bar is used when loading .32 Auto, .32 S&W and .32 SWL. Both the extra small powder bar and the magnum powder bar are non-standard items and are ordered separately. The large and small powder bar are standard equipment and are included with every press.

  10. #10
    Boolit Master scattershot's Avatar
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    Yep, use the small bar. By the way, you will like that 4 grain Red Dot load. It sounds a bit light for that bullet, though, you may want to bump it a little if it doesn't cycle your pistol. I use 4.0 Red Dot with 124 or 147 grain bullets.
    "Experience is a series of non-fatal mistakes"


    Disarming is a mistake free people only get to make once...

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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