I had run a ladder on the 108 eldm up to 34.5gr, went back down from 34.5 to 33.5 at about 2850fps. I had brought some of those loads along.
Lots of data posted here on both powders. I prefer the 15.5. All mine run 33.4 to 34 grains. Start low and work up with proper load development.
Sorry I was unclear. The 10.5 lb. limit is for the unloaded rifle with scope. Bipod, suppressor, sling, etc. are not included in the weight limit. Thanks.
Bench style matches? Or run/gun tactical stuff?
Any shooting position is allowed. Most folks shoot from a bench. Scoring is the shooter's last 10 shots. Keeping 10 consecutive shots sub MOA from a light rifle is "challenging ". Great intel in this thread. Much appreciated.
Perhaps try a faster burn rate to get the chamber pressure up a bit at that 2820-2850 range. 4166, varget, TS15.5 all do well. My 115 dtac H4350 load at 2850 has really good spreads at 35.5gr, but I'm sure psi is higher with that bullet.
My match load with 109 ELDM’s is with 33.3 of 15.5
The sierra is a good bullet, I run them in the lady's gt and one my bra's. I also have the 109 eldm, and load them in my brothers 6gt. The 107s like to be 20-30k off, 109s we most consistent back around 55-70k jump range. They both routinely shoot half moa to a bit smaller at distance. I feel the pointed sierra is a lil more consistent within the same lot, but there is base to ogive differences from lot to lot. If you buy em, get enough of same lot to burn the barrel out. I have no experience with the vapor trails. The 107smk trued up at a 281g7 and 109 eldm trued up at 286. Very little difference. The eldm can be used on game but do not recommend putting the pointed 107s on flesh, if that makes a difference in your decision to hunt with the round.
LOL! Thanks!
170fb is better for dtacs yes but guys have ran the 115s in the short fb reamer.
I’m at 2825 with 30.2 varget in a br, maybe just a “fast” barrel?
Alpha is just as good. 2800+ with a 112 in a 26" br is pushing it pretty hard.But you don’t have Lapua brass
Brass is looking good so far after 4 firings, I’ll find out….
Are you going to load to match the overall length of the Hornady Match factory ammunition?
Lapua brass and a good sizing die will allow a guy to run warm for a long time. Same thing with alpha, it's very tough in web/case head.
I anneal after every firing.
My first GT barrel just didn’t like to be pushed hard. Ended shooting 109 Hybrids at 2778fps with Varget but it was stupid accurate and like yours nice smooth recoil.
yes to start been shooting Berger 109 hybrids but they do not exist anymore
2850 and 2920 in a gt hammering.......they all do that! Good shooting.
I dis not do a seating test. I picked .040 as my start and had great results so all I did was charge weights. I did another charge weight test in .2 grains and ran it twice, new barrel and just had 100 rounds on it when I started with charge weight testing, barrel was still settling. The 37.6 load was starting to really shine and it is on a barrel time in QL. So I just went with it. 51 shots recorded with an SD of 4.3 on virgin brass. Sub half inch groups and it performs at distance. I am shooting a match this weekend so we will see how it does. I have seen others seat from .010 to .050 with good results. It does not appear that Atips are very sensitive to jump. You said your barrel is new. I would get at least 100 to 150 on it before I would do any real testing. I have noticed this last year that most of my guns like a seating depth that puts the bearing surface right in front of the neck shoulder junction. That is how I landed at the .040 number.
Man I found them to be kinda picky to get bughole accuracy in my 6bra. Found the velocity band of 2820-2830 to produce very little vertical at distance. So then tried from 10k to 80k off in 007 jump steps. I never could find something that would consistently print group in 2s and 3s. Half moa was bout the best they'd average. I'd love to get them shooting small, as the BC is killer, but I've had issues with them.
Interesting. What twist are you running and what altitude are you at. I wonder what your SF # is
7.5tw, alt is 3300, DA generally 2000-5000 depending it's it's 0 in January or 85 in July.
I came up with a 1.6 with 1.5 being minimal. You might be seeing some stability issues. I like to see at least a 1.7 to 2.0 as we have seen lower SF numbers do not hold down range. Might shoot good at 100 but print a 6" vertical at 1k. Another way you can tell is to put up a plain white piece of paper and shoot it in different spots. Not shooting a group, just shooting holes all over. Then look at the black ring left on the paper. Look for cemetery in the black. If it is darker on one side then that is a sign the bullet is not 100% stabilizing. The other thing if you have not tried it is run them closer. .010 to .060 I have had good luck with most bullets shooting at .025 to .040 off the lands and they all seem to have the bearing surface just in front of the neck shoulder junction.
