Quote:
Originally Posted by W921
Tell me more about your blue dot 22/250 loads especially with 55g bullets.
Yes old prewar manuals I always look for . Best bargains at gun shows and sometimes libraries sell off old books.
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This is copy/pasted from a old post of seafire's. As always load at your own risk as this is not from a manual
The load I used was 11 gr in a 55gr bullet out of Tikka and savage 22-250's
Firearm Used: Ruger 77 Mk 2
Barrel: 22 inch sporter weight
Case: Remington
Range Tested: 7 grains to 20 grains. 20 % ( 6.6 grains) 60 % ( 19.8 grains)
Full Case Capacity to Rim: 33 grains/
Bullets Used in Test:
46 Win HP, 50 Hornady SP, 52 Sierra HP Match, 55 Win FMJ, 60 Hornady SP
63 Sierra SMP
Test Results:
I. 46 grain Winchester Hollow Point, Win Large Pistol Primer
1. 7 grs: 1721 fps
2. 8 grs: 1895 fps
3. 9 grs: 2095 fps
4. 10 grs: 2264 fps
5. 11 grs: 2390 fps
6. 12 grs: 2537 fps
7. 13 grs: 2675 fps
8. 14 grs: 2781 fps
9. 15 grs: NO Reading
10. 16 grs: 3063 fps
11. 17 grs: 3177 fps
12. 18 grs: 3274 fps
13. 19 grs: 3388 fps ( Consider Max)
14. 20 grs: 3440 fps ( Extractor Mark, Scrapped Case)
II. 50 grain Hornady SP, Win Large Rifle Primer
1. 7 grs: 1722 fps
2. 8 grs: 1911 fps
3. 9 grs: 2057 fps
4. 10 grs: 2206 fps
5. 11 grs: 2328 fps
6. 12 grs: 2473 fps
7. 13 grs: 2627 fps
8. 14 grs: 2729 fps
9. 15 grs: 2856 fps
10. 16 grs: 2940 fps
11. 17 grs: 3116 fps
12. 18 grs: 3181 fps
13. 19 grs: 3271 fps
14. 20 grs: 3354 fps
With this bullet, all the way to 20 grains was reached ( 60%). However, I would recommend max being set at 19 grains or less.
III Sierra 52 grain Hollow Point Match Win Large Pistol Primer
1. 7 grs: 1676 fps
2. 8 grs: 1841 fps
3. 9 grs: 1998 fps
4. 10 grs: 2127 fps
5. 11 grs: 2311 fps
6. 12 grs: 2416 fps
7. 13 grs: 2551 fps
8. 14 grs: No Read
9. 15 grs: 2795 fps
10. 16 grs: 2935 fps
11. 17 grs: 3029 fps
12. 18 grs: 3127 fps
13. 19 grs: 3252 fps
14. 20 grs: 3297 fps
This bullet also reached the 20 grains mark ( 60 %) . However once again I recommend max being set at 19 grains or less.
IV Winchester 55 gr FMJ, Win Large Pistol Primer
1. 7grs: 1636 fps
2. 8 grs: 1800 fps
3. 9 grs: 1986 fps
4. 10 grs: 2126 fps
5. 11 grs: 2247 fps
6. 12 grs: 2392 fps
7. 13 grs: 2504 fps
8. 14 grs: 2631 fps
9. 15 grs: 2738 fps
10. 16 grs: 2872 fps
11. 17 grs: 3003 fps
12. 18 grs: 3095 fps
13. 19 grs: 3203 fps
14. 20 grs: 3250 fps
As again Noted, this bullet also achieved reaching the 20 grain Mark ( 60%). However once again I recommend max capacity at 19 grains or less.