Can you point me to any photos of bad pressure signs? I want to know what to look for. I will chrony these loads soon, too.
There is no underground test range at Lake City AA Plant. The test range is outside and is right off of Truman Road. You live only 25 minutes away from the range and never seen them test ammo ? Depending on what way you are on Hiway 7 just head to Truman Road. Go east on Truman road, you will drive down in a small valley and then up a big hill. Right after the crest of the hill look to your left and what's this ? It is Lake City AA plant, and there is the ouside test range. When they are firing they will have the red flag up and a red blinking light. Friday and Saturday nights they start testing around 5:00 pm and go to 11:30. They shoot everything from 5.56 up to 20mm. Last night they were shooting .50 cals. As for the secret underground range I think someone has been listening to the wrong people. I use to work in the plant myself.Dust_Remover said:I wish I had access to the 1000 yard underground tunnel range that is about 25 minutes from my house at Lake City Ammo Factory. Been up there several time to deliver stuff to contractors, and I hear them testing ammo from time to time, but I don't know where the range is at. If I had access to that that would be the best method of testing handloads. You can lock the gun in a vice, and take all the external factors out like the wind, and trigger squeeze.
Heck yes, you're safe, if you are measuring correctly and your scale is reading properly. That's the min charge on the IMR website for Varget and the 168 @ OAL 2.800". Max is listed as 46.0.Airwolf said:Speaking of pressure signs , more specifically flattened primers:
I have worked up a load using 42g of varget , 168 hpbt siera match kings using lake city brass and windchester primers. Overall length is just over 2.800. I have been getting good accuracy... .75 moa but my primers are a little flat. No other signs like sticky cases etc. This is the starting load in my manuals so what gives?? I know lake city brass has a little less capacity but I get similar flattening when using other brands of brass. Are my winchester primers just soft?. Do my loads sound safe?
Thanks in advance!
The New M118 LR uses IMR 4064 @ 42.8 with the 175 Sierra MKI have a new Tac Ops Tango 51, which is set up for Federal GMM 168gr and Mike R. shot groups under .2 with my rifle. I have been succesfull in duplicating this with Federal GMM and a very close second with Black Hills Match.
The Federal GMM,s run about 2650fps from my rifle and BHM runs about 2600fps. All 168grn. match bullets. The Federal shoots slightly better, but Black Hills costs about $10.00 less, here. They are both excellent in my rifle.
As I like to roll my own, I tried test loads from the loading manuals using 4064 powder, once fired Federal Match brass, Federal 210 Match primers and Sierra 168 HPBT Match bullets. Bullets seated about .010" from the lands, which is the same as the factory load, in my rifle. I used the Lee Collet die set to reload, no crimp.
I started with 43grns to 45grns and measured velocity. All exceeded the Federal GMM factory velocity and the 45 grn loads ran about 2800fps, which was hot in my rifle. Recoil was sharp, although no problem with brass or primers. None of these loads exceeded .35"groups at 100yds.
Finally settled on 42.5grns. of 4064 to get the average to 2650fps and the rifle settled to better than .25" @ 100yds.
I am still tweeking and 99% of it now depends on the shooter.
I do want to try Winchester brass as I read it is more durable, and perhaps Varget powder, and play with seating depth.
These are great toys you never get tired of.