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Thread: Gentler 6mm 65gr boat tails

  1. #1
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    Nov 2010
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    Gentler 6mm 65gr boat tails

    Located a couple thousand the other day. I remember years ago him informing me that they needed to be jumped to one degree or another. In fact he gave me a flyer pertaining to this. Lost it somewhere. Any advise would be appreciated.

  2. #2
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    Quote Originally Posted by martin zuck View Post
    Located a couple thousand the other day. I remember years ago him informing me that they needed to be jumped to one degree or another. In fact he gave me a flyer pertaining to this. Lost it somewhere. Any advise would be appreciated.
    In case you hadn't noticed I misspelled GENTNER!

  3. #3
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    At one of the first matches that I ever shot, I met the late Don Gentner. I was shooting a rear bag that was not tall enough, so I used a Dunrud spacer. The referee said that it was not legal and Don loaned me a taller rear bag so I could compete. He has made many bullets and has had a great deal of success in his shooting career. When it comes to a blanket statement about seating depth, one must be very careful. Each barrel is a law unto itself and saying that a bullet must be jumped may lead to frustration. If it were me, I would start at touch and shoot a hot 3-shot load, a moderate 3-shot load and a mild 3-shot load. Next I would go .003 INTO the lands and repeat the 3 groups. Then .006 into; then .009 into. If any of these seating depths shot the 3 charges into the same relative position on the target, that is probably the correct seating depth. If the accuracy is not what you expect, then repeat this test starting at .003 OFF the lands, followed by .006 off, and .009 off. With the 21 , 3-shot groups, you should have your charge and seating depth figured out. Good shooting....James

  4. #4
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    James is right...there's no seating depth that can possibly be given for any bullet. The rifle will tell you what it likes. Sure, I can tell you what my rifle prefers when shooting a particular bullet and it just might work well in your rifle but you need to try different seating depths to ensure the best.

  5. #5
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    I have always been one to experiment with different seating depths an powder charges. Some time ago I shot with Don down in Kane,Pa. and at the time he seemed obsessed with jumping his boat tails. In fact he gave me a flyer that I promptly lost. Just wondering if he had learned something that I was unaware of.

  6. #6
    Join Date
    Jun 2014
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    East Coast US
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    response

    I shot quite a few of Don's bullets back in the day. As I recall his 65 boat tails liked to jump 5-10 thousandths. Shilens, Kreigers, or Harts Didn't seem to matter The reamer I used had very minimum freebore at the time. That may have been a contributing factor.

    Pat

  7. #7
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    Feb 2003
    Location
    West Virginia hills
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    549

    jump or jam

    Don is one of the best ,,,but just because his/a bullet in his rifle with his powder and powder charge like to jump does NOT mean it will work for your particular combo,,,every new shooter asks the same ???,,,that is the beauty of benchrest,,,you have to tinker/experiment to see what is good for you,,,its like the newleywed hubby asking the old timer ,,,"what will my new bride like in bed ?"....the answer is ,,,she will tell you ,,,the same goes for your rifle,,,,I "think" the type/brand of powder is also a factor in the quest for the perfect seating depth,,,some powders like to jump and some do not,,,,Roger

  8. #8
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    Don Gentner at the NBRSA Nationals in Kansas City

    I was looking through some benchrest photos the other day and came across this photo of Don. Don passed away in 2015.

    Click image for larger version. 

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    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by Mike Bryant; 01-03-2019 at 06:22 PM.

  9. #9
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    Quote Originally Posted by P Hurley View Post
    I shot quite a few of Don's bullets back in the day. As I recall his 65 boat tails liked to jump 5-10 thousandths. Shilens, Kreigers, or Harts Didn't seem to matter The reamer I used had very minimum freebore at the time. That may have been a contributing factor.

    Pat
    Pat Hurley,
    With your background and experience I appreciate your input. Maybe Don was on to something! My reamer has a .030 freebore. If it dosen't work I can always jam them.

  10. #10
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    Nov 2006
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    He

    Quote Originally Posted by Mike Bryant View Post
    I was looking through some benchrest photos the other day and came across this photo of Don. Don passed away in 2015.

    Click image for larger version. 

Name:	Don Gentner.jpg 
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ID:	21853
    looks like he could be a brother to James Taylor. I used to buy .22 bullets from him and always enjoyed his correspondence and his bullets were/are great.

  11. #11
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    Nov 2010
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    My reason for this thread was that I managed to acquire a couple thousand of his bullets for next to nothing. With only a few club matches and one registered match per year they should last me a while at the ripe old age of seventy seven. Back when I was more active I was not much for spending a lot of time working up loads. If I could find something that I thought would shoot competitively I would blame my losses on my lack of skill in gun handling and flag reading. Appreciate everyone's input.

  12. #12
    Join Date
    Jan 2005
    Location
    Brasil
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    146

    Gentner

    Quote Originally Posted by Mike Bryant View Post
    I was looking through some benchrest photos the other day and came across this photo of Don. Don passed away in 2015.

    Click image for larger version. 

Name:	Don Gentner.jpg 
Views:	256 
Size:	1.16 MB 
ID:	21853
    Mike

    Along with the 6 PPC rifle you assembled to me, I bring 5k Gentner 65 grains BT bullets. They group really well in this rifle.(10 year ago, already...)

  13. #13
    Join Date
    Aug 2009
    Location
    North Central Pa
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    187

    Generic brand bullets 6mm 66gr boat tail

    That's on the label of the bullets I purchased when shooting in Kane in in the 2000s.
    They shot well.

    Jim M

  14. #14
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    Jun 2014
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    Quote Originally Posted by martin zuck View Post
    My reason for this thread was that I managed to acquire a couple thousand of his bullets for next to nothing. With only a few club matches and one registered match per year they should last me a while at the ripe old age of seventy seven. Back when I was more active I was not much for spending a lot of time working up loads. If I could find something that I thought would shoot competitively I would blame my losses on my lack of skill in gun handling and flag reading. Appreciate everyone's input.
    Hey Martin,

    Additionally I was light on the powder charge when shooting Don's boat tails 28-28.5 clicks on a Bruno. I had one reamer that was a .010 and another at .030 worked the same jump and shot so well I thought I knew everything, bought a set of dies and started making my own. Five thousand buck$ later and a year or two working out a new set up and Wa La

    Pat

  15. #15
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    Feb 2003
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    Southeastern PA
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    103

    Sent you a PM

    Hi Mark,

    I sent you a PM regarding my experience with Don's bullets.

    Thanks!

    Bill McIntyre

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