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Thread: Little different casting hp

  1. #1
    Boolit Buddy Iwsbull's Avatar
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    Jul 2019
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    Alabama
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    Little different casting hp

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ID:	257301 took a little adjusting had to raise my temperature to about 750f to get them to not wrinkle but I hope in time that it will smooth out and be like casting solids. I do love the way they look I just need to gas check them and see how they shoot. I am going to see if I need to check them before or after they are powdercoated.

  2. #2
    Boolit Master
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    Mar 2016
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    OKC , Oklahoma
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    Very nice!

  3. #3
    Boolit Master
    Join Date
    Feb 2008
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    Finger Lakes Region of NY
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    769
    Yep, got to keep them HP pins hot. Temperature will depend upon the alloy you are using. Having cast HP's for several years now, best advice I can give you is "if you want to have your hollowpoints work as designed, keep your tin content high and your antimony content low".

    Don
    NRA Certified Metallic Cartridge Reloading Instructor

  4. #4
    Boolit Master
    Join Date
    Feb 2010
    Location
    Iowa
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    2,630
    Also keep your temp up also and when the start to frost start to lower it some but not much . go by what the mold tell you. Not what you think , each mold have it own way to be use.I found that out also.
    Life Member of NRA,NTA,DAV ,ITA. Also member of FTA,CBA

  5. #5
    Boolit Grand Master

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    Oct 2009
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    England,Ar
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    Hollow point and hollow base bullets can be a challenge. It looks like you did well.

  6. #6
    Boolit Buddy Iwsbull's Avatar
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    Jul 2019
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    Thank y’all. Once it Got the heat it wanted it was pretty Tested without gas checks from 1111 to 1257 with about 2.5” groups at 25 yards at 1111 and 1170 groups almost identical. One more step up to 1200 and they grouped right at 1” after that at 1250 and 1260 ( point of diminishing returns) the groups went to 5+”. The first 3 groups were in .5 grain increments the last 2 were in 1 grain increments. I am looking to retest with the gas checks installed. Bhn around 12 straight coww powdercoated air cooled.

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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