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  1. Howard Roark

    Long Range Rifle/Scope/PRS question(s)

    Thanks for the kind words, it was a pleasure talking and shooting with you today. We had an exceptional squad which makes a day of shooting all the more pleasant. I hope that we meet on a range again soon. I really dislike shooting off the front of that helicopter. You have a much better...
  2. Howard Roark

    So...AR's are NOT 'direct impingement' operating systems

    FYI, Mark Westrom sold Armalite to S.A.C. in 2013.
  3. Howard Roark

    52, 53, 55, 69 grain, FMJ, HP, BT etc .223, what's your most accurate powder/bullet combination??

    AR15; Service Rifle and Match Rifle. SR has the standard 20" barrel. Using a 1-7 Bartlein this year with excellent results. MR were always 26" 1-8, mostly Harts. I chambered all of them with AMU or Wylde style reamers. These have throats that are .030 - .040" longer than standard. The 80s are...
  4. Howard Roark

    52, 53, 55, 69 grain, FMJ, HP, BT etc .223, what's your most accurate powder/bullet combination??

    VV N140 for 77gr SMK/75gr Hornady BTHP and VV N150 for 80gr SMK.
  5. Howard Roark

    Nice bolt .22LR

    Odd Job has stumbled upon a very interesting rifle. Stellite locking lugs, double set triggers made by three different companies (in name) and imported into the USA. http://www.standardfirearms.com/index.php?route=product/product&product_id=167 Lots of pictures and great write up here...
  6. Howard Roark

    Powder for .308

    Varget is the go to for .308. N140 is another popular powder used for Palma loads. The AMU uses Varget and Berger 185s for their M110 load.
  7. Howard Roark

    Nice bolt .22LR

    Kleinguenther K-22.
  8. Howard Roark

    Question for the long range precision guys

    All ammo (factory, boutique loaded and handloaded) will have some variance in the dimensions of the loaded rounds. Those dimensions will vary between lots as well as manufacturers, even handloaded. Even if the set up of the dies are the same, dies have variance just like headspace gauges and we...
  9. Howard Roark

    Question for the long range precision guys

    Sunray, there are many ways to cut a chamber with different reasons for each from hunting to benchrest and in-between. None to almost no resistance has worked for me for different applications when measuring headspace while chambering. When the barrel is torqued down to the receiver there will...
  10. Howard Roark

    Question for the long range precision guys

    Clearance numbers run all over the place and you are right in there. I would not go any farther than .008" bolt gap though. I've seen as much as .015" and I don't like that much unsupported brass. Badger actions are weird but the PRS guys seem to like them. I get the insert for the lugs and...
  11. Howard Roark

    Question for the long range precision guys

    Taliv is absolutely correct about headspace. The chamber should be cut so that the bolt closes on the go gauge with none to almost no resistance when chambering. This will allow for thread crush to open the headspace up to an allowable dimension when the barrel is torqued down. Actions based on...
  12. Howard Roark

    Help explain: Rapid Fire and Slow Fire

    You ain't wrong. I'm not playing the cheese grater forearm game. I took an old match rifle flattop upper, put a new SR barrel on it with an old CLE SR forearm to make my new optics SR. The CMP has done the shooters a huge disservice by publishing three rules changes this year. The NRA is just...
  13. Howard Roark

    Help explain: Rapid Fire and Slow Fire

    This is not correct. Both the NRA and CMP allow scopes on Match Rifles without limits on magnification power. This is covered in the latest CMP rules dated 03/02/17 and the NRA rule changes for 2017.
  14. Howard Roark

    Sub $500 Spotting scope recommendations ?

    Set the hook on that line. Kowa scopes are the de facto standard scopes used in highpower competition. There are better scopes out there but they are expensive. I have a 15 year old 611 and it's still a good scope today.
  15. Howard Roark

    Sub $500 Spotting scope recommendations ?

    Konus is another good option in this price range.
  16. Howard Roark

    Home made Lanolin based case lubes

    I use 1-5 ratio of 100% lanolin oil and 99% isopropyl alcohol with no problems with mixing or separating. 1-4 ratio is a little too tacky. Dehydrated alcohol is needed because the lanolin oil will not mix with the watered-down lower percentage alcohols. NOW Lanolin - Amazon 99% Isopropyl -...
  17. Howard Roark

    Interesting NM Springfield M1A History

    Here is some interesting little known history of the Springfield M1A NM. From 1974 for over 20 years they were made in Columbus, GA by Glenn Nelson’s shop. I'm fortunate to own one of Glenn's personal rifles and met Glenn and Hook several times over the years. Both are true legends. From M14...
  18. Howard Roark

    Which load is the most accurate?

    Accuracy is in the eye of the beholder. Rhetorical question is rehtorical. TTFN
  19. Howard Roark

    Is it possible for a rifle to be more accurate at distance than 100 yards?

    Bryan Litz covers this nicely in this article: http://www.appliedballisticsllc.com/Articles/ABDOC104_EpiciclicSwerve.pdf
  20. Howard Roark

    What is the best long range rifle?

    Usable barrel life can be maximized by how it's made and how its used. Using powders with a lower heat potential, using friction reducing coatings such as moly or HBN and not shooting every shot at the maximum charge level all help to get the longest usable accuracy out of a barrel. I have...
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