SPS Tactical 308 Load question
- Thread starter derrick1978
- Start date
Dont just load them that high and try them I would work up to it and watch for pressure signs. Make sure your using some good brass too... none of that soft federal stuff, winchester at the least! Thats a heck of alot of powder!
Ive personally been trying on the lower end and had pretty good results but with the shorter tube it makes sense it would need the extra bit of power to make up for the small velocity loss.Not sure what brass you are using, but with .308 win, my loads I use 45.0 gr of H4895 with a 155 gr Nosler HPBT and it is NOT a compressed load.
rnbra-shooter
CGN Ultra frequent flyer
- Location
- New Brunswick
The original poster asks what is working at 1000m in SPS Tactical 308s.
For what it's worth, shooting a .308 at 1000 yards is a pretty marginal business. To get good results competitive shooters carefully choose one of the lower drag match bullets, and shoot them pretty fast (hot loads are common, and so are 28"+ barrels). And, shooting beyond 1000 yards gets a lot more more marginal pretty quickly. 1000 metres (~1100 yards) doesn't sound like an awful lot more than 1000 yards, but it is much further than it seems.
Note that nobody here has claimed to have successfully shot a 20" barreled .308 at 1100 yards (nor have I). One poster did give you some very good bullet selection advice (Obtunded).
For what it's worth, shooting a .308 at 1000 yards is a pretty marginal business. To get good results competitive shooters carefully choose one of the lower drag match bullets, and shoot them pretty fast (hot loads are common, and so are 28"+ barrels). And, shooting beyond 1000 yards gets a lot more more marginal pretty quickly. 1000 metres (~1100 yards) doesn't sound like an awful lot more than 1000 yards, but it is much further than it seems.
Note that nobody here has claimed to have successfully shot a 20" barreled .308 at 1100 yards (nor have I). One poster did give you some very good bullet selection advice (Obtunded).
Derrick,
My groupings were always between .40 to .70 for a 3 shot grouping.
It always shot under 1 MOA at 100yds in 3-5 shot groupings.
Even with the 47.6grs of Varget the pressure signs were fine with the lighter bullets.
If you can't get the Berger 155.5 BT match you should try the Lapua 154's.They are really great for the long hall.I know guy's that shoot the 154's out to 1000yds with a 24" barrel getting just over 3000fps and 10-13 inch 5 shot groupings.All with Lapua brass and no pressure signs.
My groupings were always between .40 to .70 for a 3 shot grouping.
It always shot under 1 MOA at 100yds in 3-5 shot groupings.
Even with the 47.6grs of Varget the pressure signs were fine with the lighter bullets.
If you can't get the Berger 155.5 BT match you should try the Lapua 154's.They are really great for the long hall.I know guy's that shoot the 154's out to 1000yds with a 24" barrel getting just over 3000fps and 10-13 inch 5 shot groupings.All with Lapua brass and no pressure signs.
rnbra-shooter
CGN Ultra frequent flyer
- Location
- New Brunswick
For what it's worth Lapua 154s are great bullets and so are the Berger 155.5s. Both are absolutely first-rate quality, they have virtually the same ballistic performance (both are at the very top of the pack of 155 bullets). But they are quite different bullets and it is likely that one might suit your chamber a lot better than the other.
Berger 155.5s and also Lapua 154s are nicely located in the case when loaded to an overall length of about 2.95". By this I mean the boattail-body junction is somewhere in the neck (rather than below the neck and into the main case volume). But at any particular overall length, the driving band (the full-diameter portion of the bullet's body, which contacts the rifling) of the B155.5 and the Lapua 154 are at very different locations.
In a short chamber (such as a .308 Obermayer, or a Warner 95 Palma), the Lapua 154 ends up having to be pushed into the case much deeper than you'd want. The Lapua 154 might touch the lands in a .308 Obermayer at about 2.84" C.O.A.L and in a 95 Palma at about 2.81" C.O.A.L. A Berger 155.5 (and also Sierra #2156) on the other hand end up being seated out pretty much where you'd want them to be (2.90-2.95").
If you have a really long chamber, and factory Remington .308 chambers usually are really long, the Lapua 154's nose design allows it to be much closer to the rifling. Whereas with a short bullet (such as a Sierra #2155) or with an aft driving band bullet (Berger 155.5 or Sierra #2156), you have no choice but to have a *huge* amount of bullet jump (as in .100" of jump or more, even with the bullet barely seated inside the neck)
Of course no offence taken. It is good to hear somebody has done it (and if by "scenars" you mean Lapua 154 Scenars then he made a very good choice of a bullet to use for long range shooting from a Remington factory chamber). Hopefully he'll speak up or you'll be able to find him, it will be nice to hear more details of what he has done. For example, how hot his load was, what sort of accuracy he was seeing at various ranges (800y? 900y? 1000y? 1100y?), whether he was more or less at sea level or if he was at higher altitude, etc
