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Old 11-14-2012, 11:01 AM
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ar15barrels ar15barrels is offline
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Quote:
Originally Posted by Horton Fenty View Post
Sorry to bump an old thread but if anyone could hook me up with some quickload data I'd appreciate it.

M77 243 20" 1 in 10
100 gr Sierra Gameking #1560 OAL 2.650"

I'm after data for Vihtavuori N150, N550, and N160. Sierra has Viht data for every 243 weight they sell.....except the 100's.
I don't have the sierra #1560 in my bullet library, but here are the other 2 100gr sp bullets...

Code:
Cartridge          : .243 Win.
Bullet             : .243, 100, Sierra SP 1540
Cartridge O.A.L. L6: 2.650 inch or 67.31 mm
Barrel Length      : 20.0 inch or 508.0 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Maximum Pressure: 55000 psi, or 379 MPa

or a maximum loading ratio or filling of 104 %

These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

77 loads produced a Loading Ratio below user-defined minimum of 85%. These powders have been skipped.

Powder type          Filling/Loading Ratio  Charge    Charge   Vel. Prop.Burnt P max  P muzz  B_Time
                                      %     Grains    Gramm   fps     %       psi     psi    ms
---------------------------------  -----------------------------------------------------------------
Vihtavuori N560                     99.6     46.6     3.02    2897    95.0    55000   19215   1.089  ! Near Maximum !
Vihtavuori N550                     89.0     41.6     2.69    2831    99.7    55000   16641   1.104  ! Near Maximum !
Vihtavuori N165                    102.0     46.1     2.99    2798    97.5    55000   16687   1.098  ! Near Maximum !
Vihtavuori N160                    101.8     44.6     2.89    2780    95.6    55000   16358   1.092  ! Near Maximum !
Vihtavuori N150                     91.8     39.6     2.57    2750   100.0    55000   14229   1.106  ! Near Maximum !





Code:
Cartridge          : .243 Win.
Bullet             : .243, 100, Sierra SP SemiSp 1550
Cartridge O.A.L. L6: 2.650 inch or 67.31 mm
Barrel Length      : 20.0 inch or 508.0 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Maximum Pressure: 55000 psi, or 379 MPa

or a maximum loading ratio or filling of 104 %

These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

77 loads produced a Loading Ratio below user-defined minimum of 85%. These powders have been skipped.

Powder type          Filling/Loading Ratio  Charge    Charge   Vel. Prop.Burnt P max  P muzz  B_Time
                                      %     Grains    Gramm   fps     %       psi     psi    ms
---------------------------------  -----------------------------------------------------------------
Vihtavuori N560                     99.6     46.6     3.02    2897    95.0    55000   19215   1.089  ! Near Maximum !
Vihtavuori N550                     89.0     41.6     2.69    2831    99.7    55000   16641   1.104  ! Near Maximum !
Vihtavuori N165                    102.0     46.1     2.99    2798    97.5    55000   16687   1.098  ! Near Maximum !
Vihtavuori N160                    101.8     44.6     2.89    2780    95.6    55000   16358   1.092  ! Near Maximum !
Vihtavuori N150                     91.8     39.6     2.57    2750   100.0    55000   14229   1.106  ! Near Maximum !
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