Armory Sponsor
Posted: 8/9/2012 4:03:14 AM EDT
Incremental Load Work up for the new bulk projectiles and powder I bought. SS109 (pull down) projectiles. W844 (pull down) powder - referenced to H335 data in Speer Manual powder charges from 23.0gr to 25.0gr (mil data published is 26.1 for M855 load) Lake City 09 Nato Head Stamp x1, CCI 400 primer, trim to 1.760" COL 2.250" will be using my HBAR 
not looking for sub MOA just paper punching |
|
good luck. your using a chrono right? i got some 844 myself and it can vary form lot to lot. the best group i got was w/ 24gr but i never got more than 2800fps (hi 2700's if i remember right, posted my results but dont know how to find it) even out of just over 25 gr.
looking forward to your results. |
|
Quoted:
good luck. your using a chrono right? i got some 844 myself and it can vary form lot to lot. the best group i got was w/ 24gr but i never got more than 2800fps (hi 2700's if i remember right, posted my results but dont know how to find it) even out of just over 25 gr. looking forward to your results. looking for accuracy at this point. gonna borrow the chrony from a friend though... |
|
Quoted:
Expect about 1 1/2 to 2 inch 5 shot 100 yd groups. I would always get a couple of fliers to spoil a group. Good luck. + 1 I finished my work ups with the same bullet and powder. The best I got was 1 1/4'' 10 shot groups at 60 yrds. That's as far as I can go at my private range. Even including the inevitable flyer that's as good as it's gonna get. So, at 100 yrds it's probably 2 moa at best. That's acceptable for what I'm gonna do with them. Mil pulled bullets ain't match grade for sure. Don't expect one hole groups. Just get 'em consistant. Minute of beer can was all I could get and that's what I expected. |
Colt HBAR 16" chrome lined bbl with 1:9 twist. Cleaned Oiled and 10 rounds of Lake City as fowlers shot through to warm the barrel and sight in on paper. 82 degrees overcast with 15mph wind blowing left to right (east to west) I set up a flag at the target to try and measure when the wing was at it's lowest before taking the shot.
Seems each group had a flyer that was off point of aim. All cases were sorted and collected after each string no signs of over pressure, cracked cases or necks, flatten primers of excessive carbon scoring. Measured with calipers (did not subtract .224 bullet diameter) I am not trying to duplicate an M855 round just paper punching general zombie target fun. 100 yards 23.0 grains W844 - 4.26" (2.39" minus the flyer) 
100 yards 23.5 grains W844 - 1.79" (1.63" minus the flyer) 
100 yards 24.0 grains W844 - 2.87" (1.53" minus the flyer) 
100 yards 24.5 grains W844 - 2.56" (1.47" minus the flyer) 
100 yards 25.0 grains W844 - 2.56" (1.93" minus the flyer) 
|
| For reference, with 3 x scope on the bench, with no bags aids or bipods, my colt will print 5 shot groups you can cover withna quarter with factory federal m855. My 6601 hbar is just as good. That should be a point of reference if you havent established one for yourself already..... |
|
Quoted:
Quoted:
good luck. your using a chrono right? i got some 844 myself and it can vary form lot to lot. the best group i got was w/ 24gr but i never got more than 2800fps (hi 2700's if i remember right, posted my results but dont know how to find it) even out of just over 25 gr. looking forward to your results. looking for accuracy at this point. gonna borrow the chrony from a friend though... i just meant for safety. since Surplus powder can vary a lot from lot to lot. but at least your looking at your brass and inspecting it. |
|
Quoted:
For reference, with 3 x scope on the bench, with no bags aids or bipods, my colt will print 5 shot groups you can cover withna quarter with factory federal m855. My 6601 hbar is just as good. That should be a point of reference if you havent established one for yourself already..... I have shot M855 and M193 through it at 10 shot strings for reference too. Factory Stuff as well FC, REM, PPU, etc. I love reloading though. So much more rewarding |
Armory Sponsor
Win a FREE Membership!
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.