grandpamac
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1. 
   witchcraft liked post by grandpamac On thread : Creating a drop chart for a ballistic reticle

   Greetings, Or you could just measure it. With your rifle in a vice and carefully trained on a mark you can fix a tape to the target and read of the drops. Simple. No opinions or guesses. GPM.

   Liked On: 28-01-2025, 02:16 PM

2. 
   ZQLewis liked post by grandpamac On thread : 7mm08 168vld data

   The difference from loading to a longer length and increasing the powder charge to fill the space is very small as is the extra velocity from improved cases. There is a method for calculating this so...

   Liked On: 24-01-2025, 06:50 PM

3. 
   SPEARONZ liked post by grandpamac On thread : 7mm08 168vld data

   The difference from loading to a longer length and increasing the powder charge to fill the space is very small as is the extra velocity from improved cases. There is a method for calculating this so...

   Liked On: 23-01-2025, 11:21 AM

4. 
   Micky Duck liked post by grandpamac On thread : Artificial Intelligence

   1984 described humans being deliberately bred with low IQ for menial work while the Alpha's enjoyed the perks. I can't remember when that was written but it does not take much effort to see in our...

   Liked On: 22-01-2025, 07:23 PM

5. 
   SPEARONZ liked post by grandpamac On thread : 7mm08 168vld data

   Greetings again, Just some notes on measurement of case head expansion to guess pressure. I first saw this mentioned in an article by Bob Hagel in the mid 1980's. The idea is that by measuring the...

   Liked On: 22-01-2025, 07:23 PM

6. 
   SPEARONZ liked post by grandpamac On thread : 7mm08 168vld data

   Greetings SPEARONZ, I have to agree with Puffin In that your loads are dangerously over pressure. You are 2.5 grains over the Hodgdon book max of 40 grains for the similar Sierra 168 grain HPTBT...

   Liked On: 22-01-2025, 09:33 AM

7. 
   Eastern Wander liked post by grandpamac On thread : 7mm08 loads and a short barrel

   Greetings, Early on a lot of people went to AR2208 and IMR4064 in the 7mm-08 due to the difficulty of getting top loads of 48 to 50 grains of AR2209 in the case. The Hodgdon data for the 139 grain...

   Liked On: 20-01-2025, 05:06 PM

8. 
   yeah_na_missed liked post by grandpamac On thread : Artificial Intelligence

   Greetings all, There has been a lot of blather about artificial intelligence of late. In my early teens I developed an interest in science fiction and got all manner of books out of the Napier...

   Liked On: 20-01-2025, 11:21 AM

9. 
   scotty liked post by grandpamac On thread : Hornady 150 sst going to fast

   Greetings, Generally the faster a projectile is travelling the quicker it expands and the less it penetrates. More velocity does not always result in faster kills as you have discovered and it looks...

   Liked On: 18-01-2025, 07:11 AM

10. 
    Muttonguts liked post by grandpamac On thread : 6.5 creedmoor reloading

    Greetings, More data will help. 2,850 fps is too hot for any projectile over 120 grain and plenty hot for those in a 16 inch barrel. Expect a velocity loss of around 150 fps for your barrel. 2,550...

    Liked On: 13-01-2025, 02:17 PM

11. 
    Micky Duck liked post by grandpamac On thread : 6.5 creedmoor reloading

    Greetings, More data will help. 2,850 fps is too hot for any projectile over 120 grain and plenty hot for those in a 16 inch barrel. Expect a velocity loss of around 150 fps for your barrel. 2,550...

    Liked On: 13-01-2025, 01:57 PM

12. 
    hotsoup liked post by grandpamac On thread : Faster than a bat out of Hell

    An interesting and informative review. The possible problems with handloading will be a turn off for some and the primary extraction problems may need some tinkering with the rifles to solve. Still...

    Liked On: 12-01-2025, 11:08 PM

13. 
    Moose liked post by grandpamac On thread : 6.5 creedmoor reloading

    Greetings, More data will help. 2,850 fps is too hot for any projectile over 120 grain and plenty hot for those in a 16 inch barrel. Expect a velocity loss of around 150 fps for your barrel. 2,550...

    Liked On: 12-01-2025, 06:22 PM

14. 
    6mm08 liked post by grandpamac On thread : The new cartridge that makes the most sense to me.

    Greetings all, We are a bit late to the party on introducing a 6.35mm Creedmoor. It would be very close to the .250 Savage Improved 30 degree. This was a wildcat from some years back and perhaps an...

    Liked On: 09-01-2025, 10:24 PM

15. 
    ZQLewis liked post by grandpamac On thread : The new cartridge that makes the most sense to me.

    Nice try Micky, You have more or less reinvented the .270 Titus Savage or more closely the .270 Creedmoor. Developed to allow a .270 cartridge that could be used in a Savage 99 rifle. GPM.

    Liked On: 09-01-2025, 08:22 PM

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