Sequence of setting up the most accurate pellet.

Forums Field Target Field Target Talk Sequence of setting up the most accurate pellet.

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    Richard300
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    I’m trying to digest all the information I have learned here for getting the most accurate pellet. For bench rest long range shooting or just target shooting over 50 yards..
    This is my take on what I have learned…if I’m all wrong please jump in and straighten me out…  : )
    1. You get a lot of different weight of pellets. Once you get the top 3 that are the most accurate then you move to the next step?
    2. Weigh the pellets and sort out the odd heavy and light pellets?
    3. Run the pellets through a pellet die? make up Three different die size pellets? 
    4. Do the roll test of the pellets and take out any odd sounding ones and any that rolled off coarse?
    5. Go to the range with your pellets and do test shooting and find the best grouping pellet?
    6. Now you have the best shooting pellet…. now you play with the pressure of the regulator to fine tune the pellet.
    Does this sequence make sense? Am I on track with this or is there things I’m missing. Once you find the best pellet is that the only pellet you try to tune to or do you work with maybe 3 of the best pellets ….for the regulator and gun tuning ? 
    Thanks Richard

     

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    gorgata
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    yes it dose
    now I don’t do this s I could be wrong but I take the word of those who do but before you run the pellets threw a die have you tested the head size differences to make sure your gun like 1 pellet diameter over another
    ​ive only done this once  and I did notice that after I sorted  it did make a difference  I just never do it lol

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    Zephyr
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    I would start with different makes / types of pellets.

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    Goodtogo
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    Well for number 2. what if the heavy or lite pellets are the mac daddy of all pellets in your gun? And do we use a .001 milligram or .01 scale?
    And for number 3. I just skip that and burn incense and let the smoke lube the pellets. ;)
    number 4. I just pick up cinnamon rolls at Krispy Kreme for the roll test.
    number 6. I really really need to jump into the PCP pond.   

    Just having some fun with the things some of us do to make a rifle keep punching a hole in the same spot. My best method yet has been to glue together a 25 yard long pvc pipe and tape it to the target and shoot thru it.

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    Richard300
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    gorgata… I have the strait shooter mix pellet box. I just got the barrel broken in I think…shot 300 pellets through it. I was saving it until the barrel was seasoned. So once i get the best group out of the strait shooter pac then I start with the head size die. I will start that today. I only have access to 25 yards indoors range. I cant or wont shoot out side with all the snow and temp being 10 F degrees  ….  : )  Then I will go from there. 

    goodtogo……. hhhmmm…… tryed yours idea and it didn’t seem to make much difference. I did like no. 4….. was tasty….but the pond was frozen so that didn’t work at all. ….. : )
    Thanks again Richard
     

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    fe7565
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    Good questions, @richard300.  I am sure that many have taken various routes in the quest for ultimate pellet accuracy, and there is not one list of definite steps you can/must take. Many do not bother, some only care for certain steps, some would go through some great lengths and try all the possible and already tried steps.  Depends on personal preference, depends what you want to accomplish, and how much effort/time you want to put in it. I believe that there are certain steps that are very much required, because it’s just physics that a pellet at 10gr vs 10.5gr will land differently at 100 yards.  Same with head sizes in many cases.  Some other steps may lead to diminishing returns, but those returns may not be same in all rifles. Some steps overlap, some you may want to repeat.  Caution: I am far from being an expert, and I welcome comments/corrections.  

    To find the best accuracy, some go straight to determining the best theoretically possible pellet based on the physical characteristics of the rifle. For this you need to know what you are doing and how to do it, and have to have the equipment. They start with some very accurate barrel land/groove diameter measurements and go from there…  I  may go that route one day, but I will need to ask for advice for sure.  For now, I go from a wide range of options available for anyone without precise equipment/expert skills…and narrow down to a few choices after taking several steps. I assume most others go this route too.  Again, I am not an expert, this is just my view:

    1. Clean your barrel and season it with a few shots. Make sure your rifle is able to shoot pellets with very little variation (regulated). Know your rifle, have a decent scope. Also, have a reliable chrono and a stable shooting environment (indoors if possible).  Learn using Chairgun, or similar.
    2.  I try as many pellet brands I can find in various head sizes (if they make them). Trying to stick with dome or round head pellets for best ballistics at longer ranges, but that’s not written in stone.  Some pellets like certain speeds, above/below which they spiral/tumble. But this is not always specific to that pellet, because they may not tumble from another rifle at the same speed. There is a lot of info posted on what the consensus speed range is for certain popular pellets. For example JSB 18gr are said to be best between 850-930fps. Some narrow it even more to 880fps-910fps. 
    3.  Once you narrow down to a few best pellets and the “optimum” velocity, see what head sizes work for your rifle best. They may all work within a wider range (i.e.  5.50-5.54mm) but I think that is rare for grooved barrels.  Most likely the head sizes that work will be close in range (i.e. 5.51,5.52mm or 5.53,5.54mm).  Smooth bore (what I read) is not that picky. Some people sort pellet heads using a “pelletgauge” costing about $40.  Yrrah has a roll method that you also mentioned. Worth looking into his entire process as it also incorporates several further steps.
    4. Weigh the pellets (Ebay has cheap $6-15 jewelry scales with at least 2 decimal accuracy).  Use Chairgun for your distance and see where the variance in weight starts to affect the POI.  After weighing, you can go back to more accurate pellet head sizing options listed in Step 3.
    5. This is the step I have not done yet, but plan doing soon: get a simple die-press (Lee’s cost $30 on Ebay/Amazon).  Get a die: based on your barrel groove measurements or based on what head size works best in your rifle during your shootings, Order a die that is same size (i.e. 5.500) as your barrel groove/pellet head, and one that is 0.001+, 0.002+.  I think the custom made dies from Lee are around $30. I plan to buy the 0.000 first until I see if it’s worth to invest more. 
    6. After sizing with the die, go back to Yrrah roll, because I think at this point that’s the only thing that would separate one pellet from another based on a possible unbalanced  head or skirt or casting errors. All other variables such as weight, head size, skirt size (assume you sized that too with a die) should be the same.  Again, I have never done this step, so please anyone chime in.
    7. Some lube their pellets, but there is no evidence that I read that this works for everyone and everytime.  To the contrary…it’s a hit and miss in some cases while bullseye for others for the same pellet/rifle.

    Again, this is not a definite guide. Some do none, some do some, some do all. Some do even more that I am no aware.  But there are the laws of physics and some of the variables can be minimized to the point where only the shooter’s skills remain as the only variable.  Getting to the right velocities and constant shot strings may require that you repeatedly tune/modify your rifle.

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    Richard300
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    Fe7564 great info and very easy to understand. I have the strait shooter pellet set. Plus 2 other brand pellets…. thats 27 differant pellets….I have a chronograph…..have a lee press….have a slow motion camera to see the pellet flight….have a range finder from my archery days..I .have a grain scale….I’m set up from my back ground in archery and center fire guns. That was great advice. Great read.
    Thanks Richard
    thanks Richard

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    fe7565
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    Richard…you already have those cool gadgets!  :)  I need a Lee press and slow-mo cam still.   Good luck, looks like you are all set :)  Hope to see some of your findings once you get around to experiment with your setup and the various pellets, that way we can all learn.

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    Richard300
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    I was going to shoot today….but woke up in a freezing house….the furnace died on the coldest day… -1 deg F I check it out and ended up calling my buddy the furnace repairman …long story short the problem was an igniter and …the heat exchanger….one tube was ready to go…..Sooo I get a new furnace tomorrow…Heck I had nothing to do with that money anyways…Geezzzz. It was 24 years old so it was time i guess. I’m heating the house with the electric stove and a little electric heater. Fun Fun Fun…Just like the good old days. No thermostat. Just another bump in the road…. :  ) I told my wife were going shooting…heck with sitting around….I will let you know how the shooting went…as long as the house dosn’t burn down while were gone….  : )
    As my dad always told me when things go wrong …(and you arn’t dead) it will make a good story later on in life.
    Richard
     

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    zachary
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    to much work. if your competing i get it. if your hunting why bother, i think. 

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    Richard300
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    I have a …what do you call it…a problem with being as accurate as possible ….. I’ts from being a target archer…If you missed the 10 ring you lost…. : ) 
    I call it a mental problem….   :  ) After retirement I will be shooting in competition. I work most weekends so I cant shoot competition until then. I use to archery hunt deer and my bows had to be as accurate as my target bows. Sooo now that I’m sliding over to airguns the accuracy has to be there. At least that is what my mind tells me ….  : ) Hey the heats working …….life is good. I’m Happy.
    Richard

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    100mtrbench
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    Buy tins

    Try them until you get a good grouping kind of pellet . 

    Measure headsize 

    Aquire as many as you can from that batch 

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    Richard300
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    I bought the strait shooter sample pac. It has 25 different pellets plus I have two others.
    Thanks Richard

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    Richard300
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    When you buy tins do you sort all the pellets at one time by weight. I did read that some times you get a special pellet tin that everything went right that day at the plant.. Sooooo I was thinking….do I want to take 4 tins of pellets and sort them? I could miss the holy grail of pellets….  : )
    Richard

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    PlanB
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    about weighing pellets, if you want to take out the heaviest and lightest 10ish pellets out of the tin, the $25.00 scales are ok. i usually weigh 3 sizes, with a .15 to .20 grain range. maybe on jsb 22 cal 18.13’s Ill have 
    17.85 to 18.04
    18.05 to 18.25
    18.26 to 18.46
    if you want to do this, accurately, i think you will need to pay at least $275 for the scales. 
    i started with the $25.00 and you can weigh the same pellet 5 times and never get the same. 
    the $275’s arent fool proof or perfect but they are much better. 
     

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    Richard300
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    Plan b….thanks for the heads up. But at this time the money dictates what I get….and the money tells me …nope….. : )

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    PlanB
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    “Richard300”Plan b….thanks for the heads up. But at this time the money dictates what I get….and the money tells me …nope….. : )

    
i must weigh mine for the excitement! i do think that if you shoot the 10 lightest through a chronograph and 10 heaviest, you will see around 5-10 fps average difference.

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    Strever
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    Richard
    most of the benchrest shooters have tested a lot of scales over the years and the conclusion is the most expensive are the best
    BUT
    a compromise seems to be the answer for most of what we are looking for so
    the Gempro 250 has kind of been settled on as the scale to use
    http://www.accurateshooter.com/gear-reviews/gempro-250-digital-scale-review/
    and i was able to purchase mine on Ebay close to 100.00
     

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    Richard300
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    Thanks. I have a dillon from my powder days. It seems to work well.
    may not be the best but it will have to do for now….. : )
    thanks for all the info
    richard

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    sharroff
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    I’ve been using one from Competitive Edge Dynamics for years both for trickle powder measuring and now pellets  It’s very repeatable.

    They have a $90 and $120 model.  http://www.cedhk.com/shop/products/CED-Universal-Pocket-Scale.html

    If you wanted something even cheaper, I’d sell you my existing one for $50 and I’d then step up to the pro model $120.

     

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