best powder for 308 with short barrels
- Thread starter Jamie
- Start date
I would try IMR 4064 i get what you want with it with 150 gr hot corsJamie said:
http://www.imrpowder.com/data/rifle/308win-2005apr03.php
My Ruger Light-weight-heavy kick had about a 20" barrel IIRC. My notes here have
180gr PSP's, WLRM, IMR4064 with 44gr., 2650
165gr Barnes X, CCI250 and IMR4320, 47.9gr for 2830
165gr Grand Slam, CCI 250, 4320, 49.5gr 2830
180gr PSP, CCi 250, H414, 52gr. No speed recorded but was noted as very accurate.
* I don't have any expansion notes with this data so please work up to these numbers. I haven't shot these loads in 5+ years.
Noel
180gr PSP's, WLRM, IMR4064 with 44gr., 2650
165gr Barnes X, CCI250 and IMR4320, 47.9gr for 2830
165gr Grand Slam, CCI 250, 4320, 49.5gr 2830
180gr PSP, CCi 250, H414, 52gr. No speed recorded but was noted as very accurate.
* I don't have any expansion notes with this data so please work up to these numbers. I haven't shot these loads in 5+ years.
Noel
My T3 Battue light likes
43.9 gr of Reloader 15 behind 165 Honandy btsp interlock.
Win Brass and WLR primers
0.847 off a sand bag at 100 yards. Just over 2 inches kneeling.
Three different reloading manuals list this load between 2600-2700 fps Hornandy, Lee and Serria (above Serria's maximum of 43.1?)
43.9 gr of Reloader 15 behind 165 Honandy btsp interlock.
Win Brass and WLR primers
0.847 off a sand bag at 100 yards. Just over 2 inches kneeling.
Three different reloading manuals list this load between 2600-2700 fps Hornandy, Lee and Serria (above Serria's maximum of 43.1?)
i think you will find you must load maximum or very near maximum loads to get the velocity numbers you want i went through that with a 22 inch .308 win and found the loads to be slow unless you load the crap out of it, i settled for imr- 4064 and varget with 150 hornadys both would do 2800fps thats about the best , i was never satisfied with bigger bullets,be carefull with fullpower stuff i used my chrony on all loads to be safe, good luck
- Location
- The Conservative part of Ontario
Just what I expected to see, lots of opinions.
The 308 isn't usually all that selective. It does well with a bunch of powders. Your rifle however, may be selective. What works for someone else may not work at all for you. Good luck!
By the way, 4895 works well for me.
The 308 isn't usually all that selective. It does well with a bunch of powders. Your rifle however, may be selective. What works for someone else may not work at all for you. Good luck!
By the way, 4895 works well for me.
According to quickload these are the top 5 for the 175 smk for the parameters listed.
I had to edit some of the info out in order to make it a little easier to read.
Cartridge : .308 Win.
Bullet : .308, 175, Sierra HPBT MatchK 2275
Cartridge O.A.L. L6: 2.800 inch or 71.12 mm
Barrel Length : 20.0 inch or 508.0 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 55667 psi, or 383 MPa
or a maximum loading ratio or filling of 103 %
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 !
78 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
--------------------------------- -----------------------------------------------------------------
SNPE Vectan SP 11 fill ratio/102.9 grains/46.9 vel./2597 powder burn/98.3 pressure/55667 ! Near Maximum !
IMR 4895 100.7 42.9 2582 99.5 55667 ! Near Maximum !
Norma 203 old 102.2 45.5 2575 99.1 55667 ! Near Maximum !
Winchester 748 91.9 43.6 2575 99.7 55667 ! Near Maximum !
IMR 3031 99.7 41.1 2572 100.0 55667 ! Near Maximum !
I had to edit some of the info out in order to make it a little easier to read.
Cartridge : .308 Win.
Bullet : .308, 175, Sierra HPBT MatchK 2275
Cartridge O.A.L. L6: 2.800 inch or 71.12 mm
Barrel Length : 20.0 inch or 508.0 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 55667 psi, or 383 MPa
or a maximum loading ratio or filling of 103 %
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 !
78 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
--------------------------------- -----------------------------------------------------------------
SNPE Vectan SP 11 fill ratio/102.9 grains/46.9 vel./2597 powder burn/98.3 pressure/55667 ! Near Maximum !
IMR 4895 100.7 42.9 2582 99.5 55667 ! Near Maximum !
Norma 203 old 102.2 45.5 2575 99.1 55667 ! Near Maximum !
Winchester 748 91.9 43.6 2575 99.7 55667 ! Near Maximum !
IMR 3031 99.7 41.1 2572 100.0 55667 ! Near Maximum !
Last edited:
- Location
- The Conservative part of Ontario
Generally, when 4895 is presented without letters, it can be assumed it's IMR.Jamie said:
But you're right, I should have specified, and it is IMR.
I use H4895 as well however, and it also does well for me.
big issues
- Location
- The Conservative part of Ontario
Very true. Surprized that Hogdon, now that they control both powders hasn't changed a number. They have quite different burn rates by the chart, and by the recomended max loads.
