Just a little backstory, in September of 2015 I had an accident that left me with a fused right ankle.
This has left me with some mobility issues especially on steep or uneven terrain. My ankle just doesn't flex, and my right leg isn't as strong as it used to be. So I'm working on myself to get lighter, as well as my gear as I want to be able to hunt further into wilderness areas.
So for my rifle after handling a few, base weight and ultimately price played a huge factor. The Howa Superlite won out over the CA Mesa and Ridgeline FFT rifles. Advertised weight for this rifle is 7 lbs 4 oz, but it weighs 7 lbs 10.6 oz on my scale. I bought it chambered in .308 Win as I'll give it a slight advantage over the 6.5 Creedmoor in versatility at the 400 +/- yards I expect to use this rifle out to.
I manged to keep the total weight to 7 lbs 7.1 oz with Athlon Helos BTR Gen2 4-20X50 MIL and Omega 300 suppressor.
I sighted it in with some cheap PPU 150gr SP ammunition that I have, and used it to do barrel break in per Howa's instructions. Then switched to some Hornady and Winchester 150 gr ammunition. I couldn't get the rifle to group better than 2 MOA for three shots, both of these shoot right at MOA in my M700 and my Daughter's Howa 1500. Adding the suppressor just had the same ammunition shooting 4-8 MOA at 100 yards.
So I started asking for help. Mainly asking if anyone knew the torque values as I had mine pretty light due to the polymer magazine well and no other information in the manual except "tight". I also got a few other suggestions on shooting technique and ammunition. I also got scolded for having my sling swivels still attached.
So I got some Federal GMM 168 grain ammunition. Torqued the front screw to 35 in-lbs, and the rear to 30 in-lbs per LSI recommended specs. Removed the sling swivels and went shooting.
Well the rifle didn't shoot smaller 3 shot groups with the Fed GMM. It did however, shoot more consistent stacking the second 3 shot group almost identical to the first. So I decided to adjust my scope .6 MIL right and up and shoot the next 3 shot group.
I was really disappointed when the scope didn't move correctly. I've been really impressed with the Athlon scopes I tried on my rimfire rifles, but the first roud hitting low and no movement right was not what I expected. I also shot a 10th round single load after the shots 8 and 9 landed close to the elevation I wanted.
So I put my rifle on a diet, by grabbing the NF 3-10X42 SHV off of my M700 .308 Win. This made my weight go down to 6 lbs 3 oz unsuppressed, and 7 lbs 0.9 oz suppressed.
I sighted back in with the PPU ammunition. Shot the Fed GMM and shot one 3 shot group at 1.25 MOA. Then went to the Hornady AW and Winchester ammunition again. I was holding 1.5 MOA groups for three shots, and I thought maybe the barrel is settling in. So I tried shooting suppressed again.
This time the rifle (or I) did much better suppressed. The Winchester ammunition was nothing to write about, 3 MOA was about it for 6 rounds. However, I shot my first almost MOA 3 shot group with the Hornady AW ammunition. I adjusted the scope and shot 3 more shots for another almost MOA group. If I were to overlay both groups I'd probably be closer to 2 MOA, but thats a huge improvement over the previous groups suppressed with both ammunition types.
I think I'll eventually have this rifle shooting the way I want, 1.5 MOA or better from field positions. I'm just not sure where to go next. Do I shoot it more and see if I get better, or find a factory load it likes? Or since it is still a bone stock rifle do I pillar it, bed the action, and free float the barrel?