Search results

Search the forum Search Articles
  1. K

    DIY Chamber Length Gauge

    Re: DIY Chamber Length Gauge Having worked for a while in the Metrology department of a defense contractor, I'm appalled at such an imprecise method even being suggested. As someone who has worked on countless firearms for the past 35 years, I of course, Love It! I have cobbled up some...
  2. K

    DIY Chamber Length Gauge

    Re: DIY Chamber Length Gauge Yeppers, that's always an option. I'd imagine that for esoteric calibers where the brass alone costs a king's ransom, you'd earn it back over time in not overworking them. Some day, I'll find my wallet and splurge on a set for one of mine. I may have that part...
  3. K

    DIY Chamber Length Gauge

    Re: DIY Chamber Length Gauge That's what I do with my bolt action rifles, but I've never tried it with my autoloaders. Hoot
  4. K

    DIY Chamber Length Gauge

    Re: DIY Chamber Length Gauge Saturday night, I modded a .308 case to replicate the "poor mans chamber length gauge" and measured mine several times. It is 2.03 inches. Sure was easy to make and use. While I was at it and given that my rifle is relatively new, I polished the case, coated the...
  5. K

    Any user input from RRA LAR-8?

    Re: Any user input from RRA LAR-8? This will be the last update about the head swiping. In troubleshooting, one of the bigger trappings is looking for complex solutions to simple problems. After putting a slight polish on the bolt face, the swiping disappeared. I removed the adjustable gas...
  6. K

    Any user input from RRA LAR-8?

    Re: Any user input from RRA LAR-8? OK, "<span style="font-style: italic">yes we have no bananas</span>". I took a co-worker and his son as guests to the range, which was busy with others getting ready for deer season opener in two weeks. While they were busy, I played with the Predator HP...
  7. K

    DIY Chamber Length Gauge

    Re: DIY Chamber Length Gauge <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: badeyes</div><div class="ubbcode-body">I believe VarmintAl has what you are looking for on his reloading page. http://www.varmintal.com/arelo.htm#CaseHead. Scroll up to Case Trimming...
  8. K

    DIY Chamber Length Gauge

    Re: DIY Chamber Length Gauge Sorry for the confusion. I need to be a better reader. It turns out I was wondering the same about my new LAR-8 as well. I'm sure a fellow could fashion one like that Sinclair product from rummaging through his rod stock bins. Assuming you hoard hardware like I...
  9. K

    Any user input from RRA LAR-8?

    Re: Any user input from RRA LAR-8? Thanks Yarro for the suggestions and opinions. Looking at the heads of the first two cases shot. Those being with the gas port closed and very slightly open, where there is no swiping, show no imprinting from either the ejector or the extractor, so the case...
  10. K

    Any user input from RRA LAR-8?

    Re: Any user input from RRA LAR-8? I forgot to add that my LAR-8 buffer weighs 4.6 ounces. Is that the standard for them as other AR 7.62 variants have a heavier buffer. I assumed this was lighter due to the longer bolt carrier weighing more? I am leaning toward trying more weight in...
  11. K

    Any user input from RRA LAR-8?

    Re: Any user input from RRA LAR-8? <span style="font-weight: bold">OK, so it's not swiping because of being over-gassed.</span> To frame this endeavor, this was what it did with both XM80 and some tame reloads last time out: I took the rifle out today despite it being a cool and...
  12. K

    Any user input from RRA LAR-8?

    Re: Any user input from RRA LAR-8? That is a nice touch. I wish I knew why RRA elected to not thread the Predator HP Barrel on all of them? I'm guessing they wanted to sell as many as possible, even in states that have issues with threaded muzzles. Speaking of state's with issues, how about...
  13. K

    Any user input from RRA LAR-8?

    Re: Any user input from RRA LAR-8? <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Griffin Armament</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Pax</div><div class="ubbcode-body">John, Thanks for...
  14. K

    Any user input from RRA LAR-8?

    Re: Any user input from RRA LAR-8? I got my adjustable gas block and I must say, I was impressed with the quality of JP. That's the closest toleranced block to barrel fit I've ever seen. Installation was a dream. We had to finish some work on the rifle range today and it was closed until we...
  15. K

    7mm SAUM and Reloader 17

    Re: 7mm SAUM and Reloader 17 Unless you are loading up to within 100 fps of catastrophe, you don't need to "worry" about the shift. What you do need to do is characterize the change, so you know what to expect over a given amount of temperature change. Given the tie between hot and cold...
  16. K

    DIY Chamber Length Gauge

    Re: DIY Chamber Length Gauge Start reading at post number 7 <span style="color: blue"><span style="font-weight: bold">Here</span></span> John "Hoot" Hill
  17. K

    Any user input from RRA LAR-8?

    Re: Any user input from RRA LAR-8? Gosh, Now you all got me worried that it may not be an over-gassing problem. Time will tell and if it's something else, I can still use the block on my 6.5 Grendel. It really beats up the brass, though it doesn't cause head swipes. A lot of the Grendel folks...
  18. K

    Any user input from RRA LAR-8?

    Re: Any user input from RRA LAR-8? <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Eric Bryant</div><div class="ubbcode-body">With which setups and under what conditions are people experiencing over-gassing? I have the Varmint A4 w/ 20" barrel, and haven't seen...
  19. K

    Any user input from RRA LAR-8?

    Re: Any user input from RRA LAR-8? WRT the over-gassing. I ordered the PRI .750 adjustable block from Brownells. I will report in once I have it installed. Never having dealt with their block, I assume you start with it at fully open and close it a partial turn at a time until the swipes...
  20. K

    Any user input from RRA LAR-8?

    Re: Any user input from RRA LAR-8? <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KChen986</div><div class="ubbcode-body"> FWIW: My LAR-8 is also over-gassed. The gun flings brass like King Kong flings airplanes. The recoil is also pretty stout. It's not...
Top Bottom
Back
Home
Forums
Merch
Alerts