max COAL for new 155 SMK palma.........?

jimi

Sergeant
Full Member
Minuteman
Nov 11, 2009
143
0
38
Victoria, Australia
hey guys, just a few quick questions:

im working up a new load for my rem sps tac in 308 using lapua brass and 155 palmas... having previously just used win brass. which was a really solid load of about .5 MOA if i got lucky and the star and planets aligned...usualy more like .75MOA+

my initial work up was min to max load in .5 grain increments, loaded to 2.800 COAL, using varget, and have settled in on 46.0 grains for the next test for seating depth.

the problem lies herein, i cant find the lands due to the fact that i cant load the bullets long enough.....:(

about as long as i could load dummy rounds, which was waaaaay long, was about 2.980 ish, still not touching...so what i have decided to do is go up from 2.810 to 2.830 (max mag lengthish) loading each at:

2.810 x 3
2.820 x 3
2.830 x 3

i am aware that you should work backwards from jammed, so as to avoid over pressure, but these are going to be NOWHERE near jammed, lol

anyway, main question i have is are these measurements too course? should i be doing smaller increments? or bigger.....?

reason im stopping at mag length is i still need to use the rifle for hunting etc, so need to use the mag. i figure ill use normal precaustions when working up the load and start from furthest from the lands to watch for pressure signs.

what am i missing.......let me know if this is the way to go, or if i should be starting all over again at max length etc etc.....

cheers guys, jimi
 
Re: max COAL for new 155 SMK palma.........?

never mind, im pretty sure i just answered my own questions, so im gonna load em and just execute normal precautions whilst working up any load, ive been looking it up and talking to people, and with a jump that far i think it should be fine.

best case scenario is they shoot better as they get closer to the lands, worst case is my reciever exploding in my face, no biggy...might even be time to bust out the sunglasses for extra safety on this one....or a welding shield....

cheers, jimi