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Recent content by JZimm9mm

  1. JZimm9mm

    JP LRP-07 gas adjustment question.

    I have a LRP-07 in 308 Win with 22" barrel and 7" TBAC can. I'm at about 4.25 turns open FWIW. As BigJake said it's just going to depend. I started out running the LMOS system but now I have the heaviest bolt carrier and SCS JP offers, trying to keep my brass in decent shape. Also, (and I don't...
  2. JZimm9mm

    Rifle Scopes QD mount sugestions for a AR

    I have used ADM mounts on multiple rifles and finally got a Bobro. While I think the ADM mounts are good, I like the Bobro more and I feel the QD mechanism is superior. Also the rings are lower profile which is helpful to see markings on certain scopes.
  3. JZimm9mm

    Best moly trigger grease

    You want RyDol grease. JP Rifles refers to it as a trigger job in a bottle.
  4. JZimm9mm

    Need advice: fastest powders for 308, for tactical precision rifle comps

    IMR4895 will work but for highest muzzle velocity you probably want to look at Varget or Alliant Power Pro 2000-MR. Nosler has load data online. It will tell you what powders were fastest for them. https://load-data.nosler.com/load-data/308-winchester/
  5. JZimm9mm

    Larue 7.62 Magazines?

    The LaRue Battlefield Mixer really is for mixing and pouring paint from a standard 1 gallon can. I run LaRue mags in my LRP-07 and I think they are great. They will handle longer cartridges than Magpuls for sure. I have no experience with KAC magazines...
  6. JZimm9mm

    My Kestrel eats batteries

    I do not see a setting for battery type on mine. My data logging was turned on, so I turned that off. Thanks for the tip m1match and Doc.
  7. JZimm9mm

    My Kestrel eats batteries

    My Kestrel (4500NV) seems to always be at 100% battery until one day it's dead as can be. In fact, I just went to check it before writing this and it's dead as dead can be. I always use Engergizer lithium batteries. I keep a stock in my range bag.
  8. JZimm9mm

    6.5x47L Build help

    I use the Forster dies with full length sizer and micrometer seater. I use CCI 450 primers, 36.9 grains of Varget, Berger 140 Hybrid Target bullet. 2755 fps out of a 24" barrel with suppressor. Measured with a Magnetospeed. 0.020" off lands worked best for my loads and barrel.
  9. JZimm9mm

    AR's that Kick- 450 Bush Master, 458 SoCom and 50 Beowulf

    I got a 16" 450 Bushmaster upper when Indiana first allowed that round for hunting. It has been reliable and accurate and easy to reload. 458 SOCOM probably has more bullet options if you are into playing around with reloads, but the standard 250 grain Hornady load just works. I let my friend...
  10. JZimm9mm

    Brownells Upper Lapping Tool?

    I have used the Wheeler equivalent tool to fix a problem I had where I could not get the proper torque on the barrel nut while getting the gas tube notch to align. Unless you discover that your barrel is not centered in the hand guard (assuming the barrel extension is installed correctly) or...
  11. JZimm9mm

    6.5x47L Build help

    I have a 24" 1-8 twist Brux barrel that I installed on a Savage 10FP receiver and it shoots great. I get 2750 fps with Berger 140 Hybrids using Varget. Load workup was amazingly easy. I have only tried Varget because it shot as good as I could ask for. You will love this cartridge.
  12. JZimm9mm

    JP VMOS or LMOS for 20" Suppressed 6.5 Creedmoor AR10?

    My experience with a suppressed JP LRP-07 in 308 is that the heavy SCS and heavy VMOS is easier on brass than the standard SCS and LMOS. I was getting a lot more expansion at the base of my cases with the lighter components. If you don't reload then just go with the lighter parts to compliment...
  13. JZimm9mm

    6.5x47L Ogive/COAL Question

    I got a Brux barrel chambered in 6.5x47 Lapua from Devin at Sin Arms. To get some brass I ordered some factory Lapua 139 Scenar ammo. I was shocked to not be able to chamber the factory ammo. I ended up seating the bullets approximately 50 thousandths deeper just so I could shoot them (let's not...
  14. JZimm9mm

    Looking For Help Troubleshooting Aero Precision 6.5 CM

    Something really cheap you can try that has worked for me is make sure the chamber is squeaky clean and free from any solvents or oil. I have personally experienced a perfectly safe load display all sorts of pressure signs and then be remedied by cleaning the chamber with an alcohol soaked patch...
  15. JZimm9mm

    AR-10 Questions

    I have run the large frame low mass bolt carrier with standard silent capture spring and the heaviest VMOS with heaviest SCS, both suppressed and unsuppressed. In 308 Win the recoil impulse between the two setups is different but neither is harsh. I do find the heavy setup is a little easier on...