Rokslide Special 223 recipe

[Ranger 692]

So I just loaded some 75s at 2.26“ today to fit in the Tikka mag with a Lever ladder from 23 to 26 gr and does look too deep. I’m thinking I shouldn’t chance these.

 

[Juan_ID]

So I just loaded some 75s at 2.26“ today to fit in the Tikka mag with a Lever ladder from 23 to 26 gr and does look too deep. I’m thinking I shouldn’t chance these.

Assuming you’re talking about 75gr eld’s? They’ll hit the target most likely but I’d not expect any desirable accuracy… As has been posted the 75’s are too long to seat to tikka mag length.

 

[Ranger 692]

Assuming you’re talking about 75gr eld’s? They’ll hit the target most likely but I’d not expect any desirable accuracy… As has been posted the 75’s are too long to seat to tikka mag length.

Yes 75 ELDM. if not a safety issue, would it at least be functional for a pressure test ladder?

 

[Juan_ID]

That I couldn’t tell you, that’s beyond my reloading knowledge. I would assume the pressures could be different between a 75 seated to mag length vs a 73 seated to the same length but can’t say for sure.

 

[SamsonMan22]

Yes 75 ELDM. if not a safety issue, would it at least be functional for a pressure test ladder?

Maybe but you could see pressure show up earlier than it would if they are seated at the proper depth. At mag length you have a lot of bullet in the case using a 75eld

 

[Lawnboi]

Yes 75 ELDM. if not a safety issue, would it at least be functional for a pressure test ladder?

75 has a very short bearing surface, which usually means less pressure makes more velocity.

More jump can also reduce the signs of pressure, that 75 at mag length is likely jumping an extremely long way.

For those reasons I wouldn’t consider it a viable pressure ladder.

 

[Mulyhuntr]

77tmk in stock: https://www.opticsplanet.com/sierra...liber-224-77-gr-tipped-matchking-100-box.html

Use code APPY for 10% off

 

[riversidejeep]

I picked up a 1000 of the 77 SMK seconds from Midway the other day . I opened a couple boxes and weighed and eyeballed them and couldn't find any blems. Loaded them up with Varget for my gas gun and got a load that shoots 5 shot group at under 1/2". I use pick up brass and sort by headstamp, L/C in this case. Now you guy's have me wanting to sell some safe queens to get a CTR or a Super Varmint.

 

[Marbles]

Disclaimer, I'm not an authority on anything, I'm relaying what I did. If you copy me and end up with a rifle bolt lodged in your zygomatic arch, well you should not have copied a fool.

Rifle is a Tikka with 16.5 inch barrel.

For anyone curious, Accurate 2495 sucks. I could not find load data specific to a 77 gr TMK, but a 77 SMK is 22.6 gr (from what I found on another forum, not a load manual). This powder is supposedly close to H4895, which has a listed max of 22.6 gr with 77 gr Sierra BTHPs. So, I loaded it to 22 gr for 10 rounds. No signs of pressure, load is very lightly compressed with setting 77 TMKs to mag length. Using Fed 205 primers, Starline brass.

This gave me a 1.99 inch group (at 100 yards) with an average velocity of 2382 fps.

For comparison, using the same components, 22 gr of N135 (a full gr below book max), gives me velocities of 2554 fps and sub 1.2 inch groups.

To check, I shot a confirming group with 8 target rounds loaded with 75 gr RMR bullets. My 30 round group with these was 1.66 inches. The confirming group was 1.36 inches.

Too bad, I can easily get AA2495 locally and have trouble finding other single base extruded powders for the 223.

 

[Pickettpuncher]

Disclaimer, I'm not an authority on anything, I'm relaying what I did. If you copy me and end up with a rifle bolt lodged in you zygomatic arch, well you should not have copied a fool.

Rifle is a Tikka with 16.5 inch barrel.

For anyone curious, Accurate 2495 sucks. I could not find load data specific to a 77 gr TMK, but a 77 SMK is 22.6 gr (from what I found on another forum, not a load manual). This powder is supposedly close to H4895, which has a listed max of 22.6 gr with 77 gr Sierra BTHPs. So, I loaded it to 22 gr for 10 rounds. No signs of pressure, load is very lightly compressed with setting 77 TMKs to mag length. Using Fed 205 primers, Starline brass.

This gave me a 1.99 inch group (at 100 yards) with an average velocity of 2382 fps.

For comparison, using the same components, 22 gr of N135 (a full gr below book max), gives me velocities of 2554 fps and sub 1.2 inch groups.

To check, I shot a confirming group with 8 target rounds loaded with 75 gr RMR bullets. My 30 round group with these was 1.66 inches. The confirming group was 1.36 inches.

Too bad, I can easily get AA2495 locally and have trouble finding other single base extruded powders for the 223.

Hornady has a2495 listed under their 223 service rifle loads. 21.8 is max at 2600fps. Not sure why you’re that slow.

 

[FLS]

I’ve been shooting a lot of the 75 BTHPs lately. They’re cheap always available and shoot well out of my CTR and match AR.
LC brass
BR4 primer
23.5gr of 8208
24.5gr of TAC
25gr of SW Match Rifle
All gave good accuracy and velocities out of MY rifles. Use at your own risk.

 

[Marbles]

N150 has become by preferred powder in my 16.5 inch barreled Tikka. It is accurate, and gives good velocity. A drop tube is needed for a max load.

N140 was okey, but not as accurate as N150 or N135.

N135 works well, but I have to go over book max to approach the velocity I can get with N150 (0.5 gr above max matches N150 at 1.0 gr below max). On principle, I don't like loading over max, even without pressure signs. (Edit: Had some blown primers today with max N150 load and Fed 205 primers, so, I don't recommend loading to max. It was on some once fired Federal 5.56 brass, I think the work hardening of the head for lighter loads on that brass had masked pressure previously.)

All of this is with 77 TMKs. Both CCI 450s and Fed 205s work well with about 20 fps faster using the CCIs. With CCIs, I get intermittent pressure signs at max N150 load.

H4895 did not give me great velocity.

I have 8208 XBR, but have not tried it yet.

Using a Lee Factory Crimp Die has improved my groups slightly. I'll have to play with it more to confirm, but at $17 it was worth a try. My reloading is pretty simple, RCBS press and dies, decap/resize, check case length, load. Someone using a fancier set up might not see any advantage.

These were not shot on the same day, but the group with the crimp is the tightest 30 (well 29, I over crimped one of the 30, so did not shoot it with the group) shot group I have ever gotten from that rifle, the non-crimp group was the second tightest prior to that. I've included what was the tightest, but it is a different powder charge weight.

 

[Darryle]

Has anyone tried these? At ¢.75 a round it seems like a great way to build up fireformed brass and get some practice in.

I have used the Prvi Partizan in 6.5 Creedmoor and 308 ARs, brass seems to be of good quality and they shot pretty well.


223 69 Grain BTHP Match Prvi Partizan Ammo

 

[Marbles]

Well, I did all my hunting load workup on the same 30 pieces of Federal 5.56 brass. I loaded up some of the rounds using once fired brass and I think the work hardening on the case head was masking pressure as I got three blown primers out of almost 30 rounds, once I noticed I stopped shooting and pulled the bullets on the rest. The cases with blown primers no longer fit in the shell holder. The other cases still fit.

VV lists N140 max load as 25.5 gr with a 77 TMK. They don't list a load for N150, but it is a slower powder and for bullets they do list a load for both powders N150 is always higher max load or the same. So I was stuffing 25.5 gr of N150. This is only 80 fps faster than 24.5 gr of N150, so I will be dropping down a grain.

 

[JPB3]

Has anyone tried these? At ¢.75 a round it seems like a great way to build up fireformed brass and get some practice in.

I have used the Prvi Partizan in 6.5 Creedmoor and 308 ARs, brass seems to be of good quality and they shot pretty well.


223 69 Grain BTHP Match Prvi Partizan Ammo

I have a case or two of those from the Obama era.. They shoot ok and have proven to kill pigs very well !!!
Actually surprised at how well. But again mine are over 10 years old

 

[TheCougar]

More of that cheap Hornady Black 75 BTHP. Sub MOA for a 12 shot group. Interestingly, the ES and SD were tighter than for the Precision Hunter I was also shooting in my 6.5 and 7mm. Lately I’ve been getting one high and one low MV shot per box in the Precision Hunter. ES in the 70-80 range.

 

[fshaw]

I did a seating depth test with the 73’s, they shot best for me at book length. Yes, I know my groups are not statistically relevant. View attachment 656764

View attachment 758048

More of that cheap Hornady Black 75 BTHP. Sub MOA for a 12 shot group. Interestingly, the ES and SD were tighter than for the Precision Hunter I was also shooting in my 6.5 and 7mm. Lately I’ve been getting one high and one low MV shot per box in the Precision Hunter. ES in the 70-80 range.

What was your load?

 

[fshaw]

If your goal is to find a single load that you want to shoot and make a huge batch like 500 or 1000 you can save a some money reloading. My goal is to make ammunition that's more precise and accurate than the best off the shelf stuff I can buy. I usually end up with 100 or $200 worth of stuff I'm not going to use for each caliber I touch. For example, I still have some speer bullets that were remaining when I found out Sierra was way better. That's one example of probably 20.

The big advantage is always knowing what you're going to get. Last week I was playing around with some subsonic rounds in my 308 shooting them out to 200 yards. It was the first time I had touched the zero on my scope on my hunting rifle in 10 years. It's nice knowing that you can yoink the rifle out of your truck and hit a clay pigeon at a quarter mile with a cold bore shot. The only way you get there is by setting it up and leaving it alone. Just shoot it.

I have a new load for my 223 bolt gun. I've shot four consecutive five shot groups with the largest being 0.6 in. If I can repeat that today, I am going to load a fat 50 ammo box completely full, throw a desiccant pack in there and seal that mother up. Then I'll make a few hundred more to play with and put them in regular 100 round ammo boxes. I'll make a dope chart out to 500 yards based on five shot groups and put a copy in each box. The lot number will be 2023.

What is your new load?

 

[sveltri]

What was your load?

I traded that gun for a super varmint and reworked the load, new load is better. Crunchy 24.6 Varget at 2.250

 

[Dave Thomas]

I just started load development on mine with components i already had. I tried berger 80.5 with varget and sierra77 tmk with n540. The sierra with n540 shot much better than the bergers with varget. I went from 23.5 to 25 grains in .3 grain increments with both powders. With the 77 tmk and n540 every load was under .8 moa with 24.4 shooting less than .25 moa. I'm gonna verify the 24.4 load and test on both sides of it in smaller increments to find where the node starts and ends. I loaded both bullets .020 off of jam. If it holds I'm not even gonna mess with testing seating depth.