155 Grain 308 to 1K..which bullets are you using?
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Re: 155 Grain 308 to 1K..which bullets are you using?
seek the Lapua scenar... it works...
'course teh amax do well too
seek the Lapua scenar... it works...
'course teh amax do well too
Re: 155 Grain 308 to 1K..which bullets are you using?
They all pretty much work... some might make you suck it up and read the wind a little tighter
Used to use Nosler Custom Comps, then Berger 155VLDs, now Berger 155.5 BTs... got a few S155MKs (the new ones) sitting here as well.. bet they work just fine also.
They all pretty much work... some might make you suck it up and read the wind a little tighter
Used to use Nosler Custom Comps, then Berger 155VLDs, now Berger 155.5 BTs... got a few S155MKs (the new ones) sitting here as well.. bet they work just fine also.
Re: 155 Grain 308 to 1K..which bullets are you using?
Has anyone had much luck with the older Sierra's (2155)? I have a box of 500 unopened and debating trying them or sending them back and trying the new 2156's.
So far I've tried very small samples of both the 2155's and the Scenars - both with poor results in my 20" SPS-T. I realize the sample sizes of both test loads have been small - but the accuracy has been significantly worse with the 155s than my other loads using 175/168 SMKs and 168/178 AMAXs. I know everyone here seems to be in love with 155s for 1K shooting, but I'm still not sure if they are worth an entire load development round based on my initial results with them. I'm not sure they like my shorty 20" barrel.....
Has anyone had much luck with the older Sierra's (2155)? I have a box of 500 unopened and debating trying them or sending them back and trying the new 2156's.
So far I've tried very small samples of both the 2155's and the Scenars - both with poor results in my 20" SPS-T. I realize the sample sizes of both test loads have been small - but the accuracy has been significantly worse with the 155s than my other loads using 175/168 SMKs and 168/178 AMAXs. I know everyone here seems to be in love with 155s for 1K shooting, but I'm still not sure if they are worth an entire load development round based on my initial results with them. I'm not sure they like my shorty 20" barrel.....
Re: 155 Grain 308 to 1K..which bullets are you using?
im a fan of the Lapua Scenars...but have also gotten good results with the Sierra 155 Palmas
im a fan of the Lapua Scenars...but have also gotten good results with the Sierra 155 Palmas
Re: 155 Grain 308 to 1K..which bullets are you using?
Scenars over 46.2gr RL15 at 2.860" OAL always worked for me. YMMV
Scenars over 46.2gr RL15 at 2.860" OAL always worked for me. YMMV
Re: 155 Grain 308 to 1K..which bullets are you using?
If you're shooting at less than 2500 ft ASL with that short barrel, I'd give up on the 155s...unless you plan on exceeding spec loads.
I'm still in load development with A-Maxes and 175 SMKs, and thinking of trying the 178 A-Max, IF I can get some locally. Unless I'm buying bulk, I hate paying shipping.
If you're shooting at less than 2500 ft ASL with that short barrel, I'd give up on the 155s...unless you plan on exceeding spec loads.
I'm still in load development with A-Maxes and 175 SMKs, and thinking of trying the 178 A-Max, IF I can get some locally. Unless I'm buying bulk, I hate paying shipping.
Re: 155 Grain 308 to 1K..which bullets are you using?
After going through about 6k 155 Scenars in 3 different barrels, I've switched to the new 155 SMK (2156). The SMK's are much more forgiving of seating depth, powder, etc. in my experience. I also went through a couple k 155 Amaxes and they didn't fare too well at 1k. I was pushing them about 2830 in about 800 DA conditions. Didn't make 1k supersonic. But they did kill deer VERY well. Compare that to my new load that only gets 2800 from a 20" barrel with the new SMKs...this past weekend they made it supersonic to 1k in -600 DA.
After going through about 6k 155 Scenars in 3 different barrels, I've switched to the new 155 SMK (2156). The SMK's are much more forgiving of seating depth, powder, etc. in my experience. I also went through a couple k 155 Amaxes and they didn't fare too well at 1k. I was pushing them about 2830 in about 800 DA conditions. Didn't make 1k supersonic. But they did kill deer VERY well. Compare that to my new load that only gets 2800 from a 20" barrel with the new SMKs...this past weekend they made it supersonic to 1k in -600 DA.
Re: 155 Grain 308 to 1K..which bullets are you using?
SMK 155 Palma, 47gr Varget and you should be good to go.
SMK 155 Palma, 47gr Varget and you should be good to go.
Re: 155 Grain 308 to 1K..which bullets are you using?
I was under the impression the 155 Scenar BC was .508, contrary to the analysis. Is it computed differently?
I was under the impression the 155 Scenar BC was .508, contrary to the analysis. Is it computed differently?
Re: 155 Grain 308 to 1K..which bullets are you using?
Dyer 155gr HBC BJD W/ BC 0.462
over 45.5gr of ADI AR2208
Lapua Brass
CCI Large Rifle Primer.
MV 2970 fps from 27" target barrel
Dyer 155gr HBC BJD W/ BC 0.462
over 45.5gr of ADI AR2208
Lapua Brass
CCI Large Rifle Primer.
MV 2970 fps from 27" target barrel
Re: 155 Grain 308 to 1K..which bullets are you using?
Berger VLD's if you want to be careful about your seating depth, 155.5 "Fullbore"'s if you want to load with a jump and go. Both work well pushed fast.
Berger VLD's if you want to be careful about your seating depth, 155.5 "Fullbore"'s if you want to load with a jump and go. Both work well pushed fast.
Re: 155 Grain 308 to 1K..which bullets are you using?
I've found the 155.5 berger fullbore to be very forgiving. And yeah, they don't mind getting pushed, um, fast...
I've found the 155.5 berger fullbore to be very forgiving. And yeah, they don't mind getting pushed, um, fast...
Re: 155 Grain 308 to 1K..which bullets are you using?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SD669</div><div class="ubbcode-body">Dyer 155gr HBC BJD W/ BC 0.462
over 45.5gr of ADI AR2208
Lapua Brass
CCI Large Rifle Primer.
MV 2970 fps from 27" target barrel </div></div>
Nice... man thats some crazy speed from such a small amount of Varget.
I would like to shoot the Dyers some day soon... where about did your purchase yours? VRA?
I shoot Lapua Scenars. Very nice little bullets.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SD669</div><div class="ubbcode-body">Dyer 155gr HBC BJD W/ BC 0.462
over 45.5gr of ADI AR2208
Lapua Brass
CCI Large Rifle Primer.
MV 2970 fps from 27" target barrel </div></div>
Nice... man thats some crazy speed from such a small amount of Varget.
I would like to shoot the Dyers some day soon... where about did your purchase yours? VRA?
I shoot Lapua Scenars. Very nice little bullets.
Re: 155 Grain 308 to 1K..which bullets are you using?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bryan Litz</div><div class="ubbcode-body">You might find this analysis interesting. </div></div>
Indeed I did. Bryan, in the article you write briefly about the quality of manufacturing and I was wondering if anyone has done an analysis of the consistency of the manufactured bullet. I suspect this is captured within your G7 results but am curious to know if the various lengths & angles that make up a bullet can be consolidated into a single figure that represents the potential deviation from the mean in a produced bullet prior to flight.
Lapua's new Scenar L "sets out to to tighten all measures and requirements, including our already famous quality control standards. Closer weight tolerances, tighter jacket wall concentricity standards, and greater uniformity in every dimension, starting from the gilding metal cup, lead wire and jacket forming, ending up to core-jacket assembly, boat tail pressing and tipping. Several new proprietary machines, manufacturing steps and advanced instrumentations combined to the ScenarL manufacturing line never seen before in bullet production. We also took our already high quality control standards and kicked them up a notch." Ok, so how much of an improvement does this produce in overall consistency of the finished round ? Is that still best measured via the drag or should consistency of manuf utilise a different approach ?
Thanks
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bryan Litz</div><div class="ubbcode-body">You might find this analysis interesting. </div></div>
Indeed I did. Bryan, in the article you write briefly about the quality of manufacturing and I was wondering if anyone has done an analysis of the consistency of the manufactured bullet. I suspect this is captured within your G7 results but am curious to know if the various lengths & angles that make up a bullet can be consolidated into a single figure that represents the potential deviation from the mean in a produced bullet prior to flight.
Lapua's new Scenar L "sets out to to tighten all measures and requirements, including our already famous quality control standards. Closer weight tolerances, tighter jacket wall concentricity standards, and greater uniformity in every dimension, starting from the gilding metal cup, lead wire and jacket forming, ending up to core-jacket assembly, boat tail pressing and tipping. Several new proprietary machines, manufacturing steps and advanced instrumentations combined to the ScenarL manufacturing line never seen before in bullet production. We also took our already high quality control standards and kicked them up a notch." Ok, so how much of an improvement does this produce in overall consistency of the finished round ? Is that still best measured via the drag or should consistency of manuf utilise a different approach ?
Thanks
Re: 155 Grain 308 to 1K..which bullets are you using?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TJ.</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bryan Litz</div><div class="ubbcode-body">You might find this analysis interesting. </div></div>
Indeed I did. Bryan, in the article you write briefly about the quality of manufacturing and I was wondering if anyone has done an analysis of the consistency of the manufactured bullet. I suspect this is captured within your G7 results but am curious to know if the various lengths & angles that make up a bullet can be consolidated into a single figure that represents the potential deviation from the mean in a produced bullet prior to flight.
Lapua's new Scenar L "sets out to to tighten all measures and requirements, including our already famous quality control standards. Closer weight tolerances, tighter jacket wall concentricity standards, and greater uniformity in every dimension, starting from the gilding metal cup, lead wire and jacket forming, ending up to core-jacket assembly, boat tail pressing and tipping. Several new proprietary machines, manufacturing steps and advanced instrumentations combined to the ScenarL manufacturing line never seen before in bullet production. We also took our already high quality control standards and kicked them up a notch." Ok, so how much of an improvement does this produce in overall consistency of the finished round ? Is that still best measured via the drag or should consistency of manuf utilise a different approach ?
Thanks
</div></div>
OT however after some initial testing between the old 105 Scenar, ScenarL and the 105 Berger that a friend of mine did out of his 6 XC it was noted that the ScenarL shot groups about half the size of the old Scenar and had a slight edge on the Bergers,
yes there was load develpment made on the new bullet, the others had the shooter already maxed out the precision with,
furthermore, the ScenarL shot about ,5 mil higher than the Berger at 600 meters,
in conclusion however this shooter felt that there was little to nothing to be had with the new ScenarL over the less pricy Bergers that he has a good and steady supply of.
Back on track,
I am shooting the 155 Palma and 550 powder, I hope that I can get some results to come back vith after the weekend.
/Chris
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TJ.</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bryan Litz</div><div class="ubbcode-body">You might find this analysis interesting. </div></div>
Indeed I did. Bryan, in the article you write briefly about the quality of manufacturing and I was wondering if anyone has done an analysis of the consistency of the manufactured bullet. I suspect this is captured within your G7 results but am curious to know if the various lengths & angles that make up a bullet can be consolidated into a single figure that represents the potential deviation from the mean in a produced bullet prior to flight.
Lapua's new Scenar L "sets out to to tighten all measures and requirements, including our already famous quality control standards. Closer weight tolerances, tighter jacket wall concentricity standards, and greater uniformity in every dimension, starting from the gilding metal cup, lead wire and jacket forming, ending up to core-jacket assembly, boat tail pressing and tipping. Several new proprietary machines, manufacturing steps and advanced instrumentations combined to the ScenarL manufacturing line never seen before in bullet production. We also took our already high quality control standards and kicked them up a notch." Ok, so how much of an improvement does this produce in overall consistency of the finished round ? Is that still best measured via the drag or should consistency of manuf utilise a different approach ?
Thanks
</div></div>
OT however after some initial testing between the old 105 Scenar, ScenarL and the 105 Berger that a friend of mine did out of his 6 XC it was noted that the ScenarL shot groups about half the size of the old Scenar and had a slight edge on the Bergers,
yes there was load develpment made on the new bullet, the others had the shooter already maxed out the precision with,
furthermore, the ScenarL shot about ,5 mil higher than the Berger at 600 meters,
in conclusion however this shooter felt that there was little to nothing to be had with the new ScenarL over the less pricy Bergers that he has a good and steady supply of.
Back on track,
I am shooting the 155 Palma and 550 powder, I hope that I can get some results to come back vith after the weekend.
/Chris
Re: 155 Grain 308 to 1K..which bullets are you using?
They all pretty much work and are very accurate, for 1k accuracy depends really on how fast they go. All are seriously affected by wind at that distance. That's why some experienced shooters agree that a 20" barrel at low elevation will have great difficulty pushing any 155 to useful speeds.
I use the Scenars and see no reason to change as one of my Dillons is set up for this bullet and I use the one load for both bolt and gas guns with excellent results. Slightly off topic, but I'm trying the relatively new IMR 8028 in the above-mentioned progressive reloader with really good results. It has a very wide and forgiving accuracy window, very nice with dropped charges, and velocity and accuracy are excellent. Generally prefer 4895 or Varget for weighed charges, but have used many pounds of RL15 too...the 8028 is worth a very close look, but I haven't shot any in anything resembling warm temps yet.
Best,
James
They all pretty much work and are very accurate, for 1k accuracy depends really on how fast they go. All are seriously affected by wind at that distance. That's why some experienced shooters agree that a 20" barrel at low elevation will have great difficulty pushing any 155 to useful speeds.
I use the Scenars and see no reason to change as one of my Dillons is set up for this bullet and I use the one load for both bolt and gas guns with excellent results. Slightly off topic, but I'm trying the relatively new IMR 8028 in the above-mentioned progressive reloader with really good results. It has a very wide and forgiving accuracy window, very nice with dropped charges, and velocity and accuracy are excellent. Generally prefer 4895 or Varget for weighed charges, but have used many pounds of RL15 too...the 8028 is worth a very close look, but I haven't shot any in anything resembling warm temps yet.
Best,
James
Re: 155 Grain 308 to 1K..which bullets are you using?
Bryan posted a link to some very good 155 info. Check it out.
What barrel twist do you have? A 1:13 seems to be what most guys find as optimal when shooting 155's. If that's you, load 46.5 grs of Varget and let it rip.
I prefer the Berger 185 BTLR's launched at approx. 2600 fps in my 10 twist rifle.
Bryan posted a link to some very good 155 info. Check it out.
What barrel twist do you have? A 1:13 seems to be what most guys find as optimal when shooting 155's. If that's you, load 46.5 grs of Varget and let it rip.
I prefer the Berger 185 BTLR's launched at approx. 2600 fps in my 10 twist rifle.
Re: 155 Grain 308 to 1K..which bullets are you using?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: James in Wyoming</div><div class="ubbcode-body"> Slightly off topic, but I'm trying the relatively new IMR 8028 in the above-mentioned progressive reloader with really good results. It has a very wide and forgiving accuracy window, very nice with dropped charges, and velocity and accuracy are excellent. Generally prefer 4895 or Varget for weighed charges, but have used many pounds of RL15 too...the 8028 is worth a very close look, but I haven't shot any in anything resembling warm temps yet.
Best,
James</div></div>
I use 8208 to push Sierra 2156 Palma bullets 2870fps out of my 20" barrel. It's a great powder, with little temp sensitivity so far.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: James in Wyoming</div><div class="ubbcode-body"> Slightly off topic, but I'm trying the relatively new IMR 8028 in the above-mentioned progressive reloader with really good results. It has a very wide and forgiving accuracy window, very nice with dropped charges, and velocity and accuracy are excellent. Generally prefer 4895 or Varget for weighed charges, but have used many pounds of RL15 too...the 8028 is worth a very close look, but I haven't shot any in anything resembling warm temps yet.
Best,
James</div></div>
I use 8208 to push Sierra 2156 Palma bullets 2870fps out of my 20" barrel. It's a great powder, with little temp sensitivity so far.
Re: 155 Grain 308 to 1K..which bullets are you using?
That's what I am finding. 2875 with Lapua 155s out of 21", 2920 out of 26", haven't tried the longer F-class barrels yet but I imagine 2950 easily out of 30". No pressure and plenty of upside but very good accuracy. Very good SDs too especially for dropped charges. I've just ordered 16 pounds.
Best,
James
That's what I am finding. 2875 with Lapua 155s out of 21", 2920 out of 26", haven't tried the longer F-class barrels yet but I imagine 2950 easily out of 30". No pressure and plenty of upside but very good accuracy. Very good SDs too especially for dropped charges. I've just ordered 16 pounds.
Best,
James
