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Damn it!I never had much luck with that combo in a 1:9 twist. It's a solid performer in 2 different 1:7 guns, but I found you have to push it quite a bit faster than possible with n140 to get it to group in a 1:9.
I was finally able to get some ok results with max loads of CFE223, 24 inch barrel, at 5-6000 ft elevation.
But they never were really stellar. I decided to stop wasting time and components, and just shot them in my other guns.
Sorry I can't be more help,
Dave
Is anyone using the following through a Remington 700LTR? (20", 1:9 twist barrel)
Hornady match 75gr HPBT.
N140
Lapua cases
CCI 400 small rifle primers.
I did a basic load with 24gr of powder and seated to 5though off the lands but the group wasn't up to standard (100yds gave a 3" group) I've not had much time to look into it yet and having remembered I signed up to this forum ages ago, I got I to this thread a bit tonight and saw a few people posting similar loads so I have some hope I can work a load out and get back to cloverleaf groups at 100yds again.
I just thought I'd ask if anyone is using the same components I have on the off chance I can short cut the process a bit.
Thanks! I have a new 24" CTR that I am ready to start building a load for. This helps...
Is that a cut down factory barrel? What kind of accuracy are you seeing?24.3gr N140 in 1x LC18 brass w/ a 75 Gr ELD-M is getting me 2713 out of an 18.5" T3x.
Is that a cut down factory barrel? What kind of accuracy are you seeing?
IME the 75gr hornady can be picky with seating depth. Whats your COAL?Is anyone using the following through a Remington 700LTR? (20", 1:9 twist barrel)
Hornady match 75gr HPBT.
N140
Lapua cases
CCI 400 small rifle primers.
I did a basic load with 24gr of powder and seated to 5though off the lands but the group wasn't up to standard (100yds gave a 3" group) I've not had much time to look into it yet and having remembered I signed up to this forum ages ago, I got I to this thread a bit tonight and saw a few people posting similar loads so I have some hope I can work a load out and get back to cloverleaf groups at 100yds again.
I just thought I'd ask if anyone is using the same components I have on the off chance I can short cut the process a bit.
C.O.A.L is 2.310IME the 75gr hornady can be picky with seating depth. Whats your COAL?
Ive found that the 75gr likes to be seated back further that I wouldve thought in my gun but also I have heard this from others. Mine is a gas gun though.C.O.A.L is 2.310
I tried a batch of 50 at 2.305 but the spread was a lot larger than I expect from my rifle and myself at 100yds. I then tried a few seating depths at a 50m indoor range and found a node that gave clover leaf groups so tried that at 100yd outdoor range but the group was again, much larger than expected.
I used 24gr of N140 across all testing so I'm thinking I'll go back and start again with powder charges to find a node and then do O.A.L testing after that?
The problem I have is a lack of access to indoor 100yd ranges. The ones that do exist are miles away and aren't allowing guests just yet.
That's what has lead me to thinking I'll just redo everything from scratch. I've emailed a few indoor places to see if I can get to a range for some load development.Ive found that the 75gr likes to be seated back further that I wouldve thought in my gun but also I have heard this from others. Mine is a gas gun though.
I have shot the 75 BTHP at 500 meters out of a 16" 1:9 SPS Tactical with success, headshots on a steel silhouette.That's what has lead me to thinking I'll just redo everything from scratch. I've emailed a few indoor places to see if I can get to a range for some load development.
Excellent, thanks Marshall, I'll see if I can work out the equivalent powder charge for Viht N140 and seat a couple to that length and see how it goes.I have shot the 75 BTHP at 500 meters out of a 16" 1:9 SPS Tactical with success, headshots on a steel silhouette.
Elevation was 5K.
75 Hornady BTHP
23.7 TAC
CCI 41
FC mil brass
2.260 OAL
Yes, I forgot about your data... Sorry, I'm at work on site this week so not concentrating properly on this. I'll read back through on the computer this evening.You've already got my data for N140, FC cases, and 75gr Hornady BTHP. Didn't give you my cartridge overall length, but I also load it to 2.260".
What's the longest COAL you've loaded that bullet to? My Sierra manual suggests 2.55" when single loading in an AR. I haven't tried that bullet in my Tikka T3x Varmint, but would be happy to try if you sent me someI'm curious to know what COAL anyone is finding on a Tikka T3 Varmint with Sierra 80's. I've stripped my bolt and incrementally seating till I get a free bolt drop. Going farther than I expected thus far.
Haven't done a single one yet. In the process of trying to establish one. By the Hornady tool I'm at about 2.416". If I try that with the stripped bolt, there is resistance. I'm going to keep on experimenting for a bit . I've only got the single box of 500. Otherwise I'd send you some.What's the longest COAL you've loaded that bullet to? My Sierra manual suggests 2.55" when single loading in an AR. I haven't tried that bullet in my Tikka T3x Varmint, but would be happy to try if you sent me some
I'm curious to know what COAL anyone is finding on a Tikka T3 Varmint with Sierra 80's. I've stripped my bolt and incrementally seating till I get a free bolt drop. Going farther than I expected thus far.
Let us know what you find. I am wondering the same.I'm curious to know what COAL anyone is finding on a Tikka T3 Varmint with Sierra 80's. I've stripped my bolt and incrementally seating till I get a free bolt drop. Going farther than I expected thus far.
I would keep working back to even 2.23-2.24. You may be surprised. Won't necessarily affect velocity but who knows.C.O.A.L is 2.310
I tried a batch of 50 at 2.305 but the spread was a lot larger than I expect from my rifle and myself at 100yds. I then tried a few seating depths at a 50m indoor range and found a node that gave clover leaf groups so tried that at 100yd outdoor range but the group was again, much larger than expected.
I used 24gr of N140 across all testing so I'm thinking I'll go back and start again with powder charges to find a node and then do O.A.L testing after that?
The problem I have is a lack of access to indoor 100yd ranges. The ones that do exist are miles away and aren't allowing guests just yet.
Could you elaborate on what you mean by the donut?Short throats, short magazines and short actions are the root problems with the 223.
If your jam length requires bullets to be seated into the donut, the chamber is too short.
If your mag cannot run cartridges that are long enough to seat bullets ahead of the donut, your mags are too short.
If your action cannot cycle such a round, your action is too short.
Best mags I found are Accurate Mags. The steel ones with a plastic insert. These are best because they can be easily modified by taking the plastic inserts out and milling them internally to suit a longer COAL.
As stated earlier in this thread: I run my 223 with 88 ELDM bullets seated to 2.625 OAL and feed from modded Accurate Mag with no issues. Velocity is 2900 FPS easy with no pressure problems.
Accuracy is 1/2 MOA.
Shot spray paint cans from 750 yards a couple months ago... Cans were on the side so I had to hit the diameter, not the side. Hit the first can with the first shot. Missed the second can and it rolled down the hill. Hit the third can with the first shot.
I ended up at about 2.454" COAL for the 80 SMK. CBTO is at 1.819" with a SAC comparator.Let us know what you find. I am wondering the same.I'm curious to know what COAL anyone is finding on a Tikka T3 Varmint with Sierra 80's. I've stripped my bolt and incrementally seating till I get a free bolt drop. Going farther than I expected thus far.
NOT ELD's but Sierra , in their AR data lists their 80 smk's for single shot loads with a COAL of 2.550 that show the following MAX charges; 23.5 N 140 @2550 , 24.0 Varget @ 2600 , not I 4895 but I 4064 at 23.8 @2600. That get to 2700 with 24.0 AA 2520Anyone running 80gr ELDs? Looking to try N140, Varget or IMR4895.
Anyone running 80gr ELDs? Looking to try N140, Varget or IMR4895.
If you have Varget or Benchmark, I would go in that direction. H335 and CFE223 are good powders but you will see more velocity variation with temperature changes.Bolt gun pet loads for Hornady 75g ELDM's or Sierra 77g HPTB's running either Varget, Benchmark, H335, or CFE223?
Analysis paralysis trying to sort out where to start.
Yeah, I'd more than definitely favor a temp insensitive load if I have a choice. Mornings can be 40's and afternoons 75.If you have Varget or Benchmark, I would go in that direction. H335 and CFE223 are good powders but you will see more velocity variation with temperature changes.
Somewhere around 24 grains of Varget and 23 grains of Benchmark are where you'll most likely end up, depending on the brass. As always, start low and work up.
A good friend likes a hot load of CFE223 behind the Nosler 77
Benchmark is a great powder. You are probably going to be down a touch on velocity compared to varget but the accuracy nodes are usually pretty wide.Yeah, I'd more than definitely favor a temp insensitive load if I have a choice. Mornings can be 40's and afternoons 75.
I'd prefer to use something other than Varget as my last option until the run on it settles down. My 6mm's run on that now and am hoping to stretch my supply on it through the season.
Run N540 with 69 gr HPBT @ 2.245 and will not switch, but never tried 80 grainers.Anyone have experience with N540? Particularly the 80gr+ stuff.
Thank you!this isnt the right place. read the rules. and edit/delete your post
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