For those using 150gr fmj/bt in 300blkout would you mind sharing some load data that works for you .... I will be using 16" AR ....Attachment 1282
Printable View
For those using 150gr fmj/bt in 300blkout would you mind sharing some load data that works for you .... I will be using 16" AR ....Attachment 1282
I run 15.5gr of H110 in my 6.5"300 blk. Work well.
Sent from my SM-N910V using Tapatalk
I have H110 , 1680 , 4227 and CFE BLK to play with ....
H110
Sent from my SM-N910V using Tapatalk
I just shot a test load last night of Lil gun from 15 to 17gr. This was giving me velocities in the 1800s from a 8.5" barrel. I was seeing some flat primers on the higher end so be careful.
Sent from my SM-N960U using Tapatalk
When I was playing with the round. CFEBLK shines with the heavier bullets. H110 for the 100’s-125’s
19.0gr of 1680 is getting 1870fps in my 16” barrel with 150gr Remington PSPCL.
Not at the max either.
what seating depth are you guys using ??
I’m away from my data but I do remember the 150gr Remington PSPCL ended up at 2.220”. Being it was a flat base bullet, you can get away with it.
This was about the max length I was comfortable with of the bullet (or lack of) in the case for neck tension. The boat tail probably won’t work at this length.
I’m also doing a 150gr RN at 1.900”, same powder charge, in a 7 1/2” barrel.
Hornady lists 2.090” for their #3037 150gr FMJBT.
This is corrected from the 9th Edition that showed 2.220”.
Do you mind telling us what the 150gr BT bullets will be used for.
Are these bullets "pulls",military,etc ??
Being FMJ, I would guess NOT hunting bullets. Loading for the 300BLK, flat base bullets are your friend. So are bullets <131grs . . . especially for hunting. --- SAWMAN
I use Barnes 110gr Tac-Tx for hunting , I bought 500rds of the Hornady 150gr fmj/bt just for plinking and punching holes in paper .... just not finding much load data for a starting point ....
I bought the 150gr in hopes of getting a super cheap subsonic plinking round. I have come up with a few loads that stay subsonic and still cycle the action. Just need to load up some more and test for position sensitivity of the powder.
Sent from my SM-N960U using Tapatalk
Hornady’s 9th (and probably 10th) Edition has data for 1680, 4227 and H110 with the FMJBT.
Hodgdon has data with CFE-BLK but with Hornady’s Interbond bullet, so the length is probably going to be incorrect for the FMJBT.
The 150's are kind of light for subs. My choice would be the 208's.
My 300BLK 's are a bolt gun and a single shot. The single shot is a fun gun. Have used it for hunting only so never used any heavy bullet.
If if did not shoot so good with the Barnes 110's,I would have the freebore lengthened and shoot the 220SMK's at 950. --- SAWMAN
I have a Ruger boltaction I shoot subsonics in , I just want some 150gr supers for target shooting with my AR ...Attachment 1288Attachment 1289
From Lyman’s 50th EditionAttachment 1291
From Hodgdon but using an InterBond not FMJBTAttachment 1292
Thank you , at last starting data .... I used to go by Hogden website but have found too many mistakes ....
looks like 2.09 is gonna be my starting depth ........Attachment 1296
I'm looking at the full bullet to neck contact , if I cant find a accurate group I will start stretching the OAL .....
yes , brand new cases .....
First test rounds with CFE BLK .....Attachment 1298
not bad for first loads , now to try to tighten them up ......Attachment 1331Attachment 1330Attachment 1329
I did , they were slightly larger groups , 10 different loads with 3 different powders , these were best 3 ....