M14 Forum banner

41 - 51 of 51 Posts

·
Registered
Joined
·
26 Posts
Discussion Starter #41
I figured it was an error because alot of it looks inconsistent and after reading all of this, I'm now taking these apart and going to start out with a lower powder charge and work up to the 2550 fps that it has for M852. This is why I'm here askeing these questions, to learn from people who have done these things before me.
 

·
Super Moderator
Joined
·
11,085 Posts
I figured it was an error because alot of it looks inconsistent and after reading all of this, I'm now taking these apart and going to start out with a lower powder charge and work up to the 2550 fps that it has for M852. This is why I'm here askeing these questions, to learn from people who have done these things before me.
Have you chrono'd M852 LC Match thru your rifle and how was the rifles accuracy???
 

·
Registered
Joined
·
26 Posts
Discussion Starter #43
No, Phil, I haven't shot any real M852 through it. I'm going to have to break down and buy some off of Gunbroker or somewhere and try it. I'm fixing to go shoot 3 different loads here in a minute, and I'll let y'all know how they do.
 

·
Super Moderator
Joined
·
11,085 Posts
No, Phil, I haven't shot any real M852 through it. I'm going to have to break down and buy some off of Gunbroker or somewhere and try it. I'm fixing to go shoot 3 different loads here in a minute, and I'll let y'all know how they do.
Don't leave just yet, here is a clone load data of M852 LC Match. I azzume you do all your case prep.
LC or Mil-spec case.
Powder IMR/H-4895 @ 41.5grs
any std primer
COAL 2.80-2.82

If your going too use commercial cases your going too need too add nearly +1 grn powder. I know you got 2550fps off the M852 box, and In my first post you didn't pick up on the fact that Uncle Sam measures there ammo at 78ft from the muzzle so that same 2550fps is misleading. In the real would its closer to 2640ish.

You can reload softer if your thinking you can strech the powder, but just remember that as the distance gets longer they will drop off/out sooner and faster.

IMR vrs H , IMR is a little softer than the H but at this load level there close enough for Service Rifle use.


Using the Mil-spec cases and Varget powder, 41.0grs is also a clone loading of M852.
 

·
Registered
Joined
·
26 Posts
Discussion Starter #45
I just loaded some with LC brass and IMR 4895, 40.5, 41, 41.5 and 42gr, 5 rds each. I also have some LC 64 M80 ball I'm going to try. Ill let you know here in an hour or 2 how they do. I'm just going to go out in the pasture and shoot a target up against a roll of hay so no long trip to the range. And I got the 78 ft part. I'm going to try it at 78 ft and try not to hit it.
 

·
Registered
Joined
·
4,950 Posts
shoot a target up against a roll of hay
Hopefully nobody lives behind that roll of hay, bullets fly a long ways. There is a guy in TX who has a manslaughter charge because his bullets flew about 1/2-3/4mile onto a schoolyard and hit a kid in the neck, paralyzing him.

If you want to shoot at the farm use your tractor to make a dirt pile behind your target big enough to stop the bullets.
 

·
Registered
Joined
·
26 Posts
Discussion Starter #48
41.5 gr did the best. Didn't get the fps cause I waited till the sun went down behind the trees and I think the chronograph didn't have enough light. I can try it again later, but I think a 3" point of aim group at 100 yd prone with just a tight sling and no rest is good enough to call it the best.
 

·
Registered
Joined
·
1,347 Posts
41.5 gr did the best. Didn't get the fps cause I waited till the sun went down behind the trees and I think the chronograph didn't have enough light. I can try it again later, but I think a 3" point of aim group at 100 yd prone with just a tight sling and no rest is good enough to call it the best.
Yep, it's a classic load, and not particularly "hot".

It also works well in my 700 for 1-300y.RNGR1
 

·
Registered
Joined
·
188 Posts
Springfield Armory NM M1A (Headspace 1.631)
1:11 twist

Bullet: LC91 M852 Match (Factory)
LOAL: 2.815 (2.249 Base to ogive with Stoney Point)
Velocity: 2595 (measured 15 feet from chronograph)
Actual muzzle velocity: 2640.0

Brass sized for 0.003 - 0.004 headspace clearance, primer pockets uniformed, trimmed to 2.005. All loads clocked 15 feet from chronograph. All components identical except for brass (just to show the difference).

Bullet: Nosler 168 gr. HPBT
Powder: IMR-4895 41.5 grs.
Primer: WLR
Case: LC90
LOAL: 2.810 – 2.815 (2.241 with Stoney Point Gage)
Velocity: 2582 fps

Bullet: Nosler 168 gr. HPBT
Powder: IMR-4895 41.5 grs.
Primer: WLR
Case: IMI Match
LOAL: 2.815 – 2.820 (2.245 with Stoney Point Gage)
Velocity: 2567 fps

Bullet: Nosler 168 gr. HPBT
Powder: IMR-4895 41.5 grs.
Primer: WLR
Case: LC67
LOAL: 2.815 – 2.820 (2.245 with Stoney Point Gage)
Velocity: 2565 fps

IMR-4895 is a great powder but my standard load uses H4895 (cheaper). Same reason I use the 168 gr. Nosler instead of the Sierra

Bullet: Nosler 168 gr. HPBT
Powder: H4895 41.0 grs.
Primer: WLR
Case: LC96
LOAL: 2.810 – 2.815 (2.241 with Stoney Point Gage)
Velocity: 2605 fps

USAF2

I just recently started using Wolf Large Rifle Primers in my M1A (running out of WLRs) and I might just stick with them. They are a little tougher and slightly hotter too. No more H4895, I'll have to rely on my jug of Accurate 2230-C for now.

Bullet: Sierra 168 gr. HPBT
Powder: Hodgdon H4895 41.0 grs.
Primer: Wolf Large Rifle
Case: Lake City 68 National Match
LOAL: 2.800 (2.230 base to ogive with Stoney Point)

Five shots at 100 yards. Now that I've got a scope on my M1A I can shoot like I was 42 again!

 

·
Registered
Joined
·
26 Posts
Discussion Starter #51
I finally got around to buying some real M852 off Gunbroker. I measured everything and here's what I came up with.

Case- LC 90 Match, 2.005"
Bullet- Looks like Sierra Matchking
Bullet wt- 168 gr
Powder- 4895 of some kind. Looks like IMR 4895 but darker color.
Powder wt- 44 gr
COL- 2.83
Primer- LR of some kind
Avg Velocity- 2545 @ 78 ft (5 rds with a Pro Chrono Digital at around 95 degrees yesterday at 1200 noon and 60% humid)

This is what I made with LC13 brass, 41.5 gr IMR 4895, CCI # 34 primers, and 168 gr matchkings. I don't remember why I only have 4 rds on here. 2.80 COL, no crimp.

Grains: 168
Hi Vel: 2594
Low Vel: 2559
Ave Vel: 2573
168 gr 41.5 IMR 4895
Velocity Ft/Lbs
2559 2442.595
2594 2509.868
2578 2479.001
2564 2452.149

I have another group with everything the same except I used Federal Match primers and deburred all the flash holes, had exactly the same weight primers, cases, bullets, powder and primers. Out of 5 rds, all but one had identical velocities and I think they were 2745 The oddball was a little slower. I can't find the chrono data. Don't know where or if I saved it.
 
41 - 51 of 51 Posts
Top