155gr or 175 or 180something in .308

Alain Marion won DCRA Canadian Chamionships at 2850 fps with GB491. Lapua factory GB491 is also top-shelf.
Load to velocity that shoots best in your rifle.
 
Longshot said:
Time to do some testing bro.Work up some loads and go punch some paper.If you can drive the 155's at around 3000fps you might have a winner.If its factory ammo then i'll take 175's anyday.
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Thats what I found. I had to drive them HARD and close to the lands, then they tightened right up:D

Also, Slavex, keep in mind that you might have to play around a little more with your TRG (I don't know what the tolerances are on your chamber). We used a reamer which allows me to seat to lands and mag feed. I run them just off the lands myself but thats my gun/barrel. You may find that the factory chamber won't allow you to get them very close to the lands (in this situation the Sierra MK is far more "Jump tolerant"). I ran into this with my HS Percision Pro2000. I had to run it as a single shot with the 155 Lapuas but OMG was it a good load.

Have fun, if you can get those bad boys shooting in your gun your off to the races!
 
PEI ROB said:
Definately some good advise in this thread.


The 168's DO NOT transition well through to the sub-sonic velocity, probably the main reason people crap on them.
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I just looked at the Sierra website and compared the listed BC's at various velocities between the 155 and 168gr SMK. The 168's have a more drastic drop in BC as the velocity falls... verrrrryyyy interesting!
 
I've had an off and on romance with the 155's. 46 grains was going good, I had enough room without pressure to goto 48. Though they didn't quite performs as well as my 168's. I guess i'll crack the books open again.
 
well I know 757Fixer loves how the 155s shoot out of his TRG. Length shouldn't be a problem as the mag on the TRG is very long.
 
i know this is slightly off the topic but i have some 208 gr a-max that i've loaded in my 300 win..very nice bullet...and i was looking and i'm like hey wonder what it would do in a .308..i know it's a tad on the heavy side and the length of it might cause headaches but i've done a bit of googling and some people have tried it...i only have varget on hand though..i know it's similar to RL-15 and some seem to have tried it with that...anyone have any suggestions for a powder i might try? gun is a savage model 10... 1:10 twist. Thanks.
 
I've just started working w/ a new F/F gun. My chamber allows seating to lands at 2.900. Lots of room for powder, and so far I'm liking it. Velocities are around 3050 w/ 155 scenars. Stout loads, but I think they're going to do well compared to my old 175 smk load at 2730! I'll let you know how they do after the NB provincial shoot this weekend.
 
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