01-01-2020, 03:46 AM
if you look in the recent edition of the Sierra manual Alliant's PPV is the or one of the top velocity listed powders for the 6.5 Grendel. in the 15th Speer it's also right up there. in my 22" howa i've been getting great velocities.
for Sierra's 85gr. HP they list 33.8 of APPV for 3050 fps (assuming they're using a 24" tube). since i was running a bolt gun i rounded to 34gr. and got 2904 to 2949 the other day (40F). in the summer time (july - 80F) it runs from 2962 to 3100.
Sierra lists there 123gr. HPBT matchking at 2550 with 29.2gr. of APPV. and i checked, yep 24" universal receiver. and these would be SAAMI pressure level loads that Sierra lists.
Speer also uses a 24" barrel 1-8 and say SAAMI spec is 52K PSI (no CUP established). they're seeing 2483 with 27.3 gr. of APPV with their 120gr. Gold Dot Rifle. so i've been please with APPV with the 85gr. Sierra varmint bullet so far, and have some 130gr. ELD-M loaded up but have yet to get a chance to run them.
from my data you can see there is some temp dependence that i've noted. ymmv of course, and there are many useful powders for the Grendel. but so far i'm liking what i'm seeing with APPV with respect to velocity.
-tdbru
for Sierra's 85gr. HP they list 33.8 of APPV for 3050 fps (assuming they're using a 24" tube). since i was running a bolt gun i rounded to 34gr. and got 2904 to 2949 the other day (40F). in the summer time (july - 80F) it runs from 2962 to 3100.
Sierra lists there 123gr. HPBT matchking at 2550 with 29.2gr. of APPV. and i checked, yep 24" universal receiver. and these would be SAAMI pressure level loads that Sierra lists.
Speer also uses a 24" barrel 1-8 and say SAAMI spec is 52K PSI (no CUP established). they're seeing 2483 with 27.3 gr. of APPV with their 120gr. Gold Dot Rifle. so i've been please with APPV with the 85gr. Sierra varmint bullet so far, and have some 130gr. ELD-M loaded up but have yet to get a chance to run them.
from my data you can see there is some temp dependence that i've noted. ymmv of course, and there are many useful powders for the Grendel. but so far i'm liking what i'm seeing with APPV with respect to velocity.
-tdbru