223 wylde (1:8 twist)

Moorvogi · May 22, 2019

i have some 75gr match projectiles and i'm going to try them in a 223 wylde w/ a 1:8 twist. i do NOT have the powders listed in the hornady manual and 2 other manuals dont list that weight.

i COULD just go buy a pound of the stuff listed but, what's another (relatively safe) option?

John from MD · May 22, 2019

Here are some loads I found.

24.0 Varget, CCI 400, Avg 2381 FPS

23.6 TAC, CCI 400, Avg 2523 FPS

24.0 TAC, CCI 400, Avg 2594 FPS

24.3 TAC , CCI 400, Avg 2639 FPS

24.4 TAC, CCI 450, Avg 2588 FPS

24.4 TAC, CCI 450, L.C. Brass, Avg 2619 FPS

23.7 AA2230, CCI 450, Avg 2688 FPS

23.6 AA2230, CCI 450, Avg 2621 FPS

24.4 TAC, CCI 400, Avg 2610 FPS

24.4 TAC, CCI 450, Avg 2651 FPS

24.2 TAC, CCI 450, Avg 2630 FPS

24.4 TAC, Federal 205, Avg 2664 FPS

24.3 TAC, CCI 450, Avg 2642 FPS

Moorvogi · May 22, 2019

Thanks john.

i looked again and i'm not sure what the deal was... maybe i was looking at the wrong chamber. i found some loads w/ powder i have.

https://www.hodgdonreloading.com/data/rifle

4064, 3031, or benchmark it is!

John from MD · May 22, 2019

They will work, you will loose 200 FPS though. As long as that works for you, go for it.

Moorvogi · May 22, 2019

ya, should be fine. i'm loading for someone else and wants a low/medium load. Intended POU is paper/gongs/groundhogs at 300y w/ some at 500 yards.

i'm working on him getting a 308 but... we'll get there.

outrider58 · May 23, 2019

The one concern I have using the Hodgdon table(and I use it all the time) is when searching for loads for my ARs, their rubric is for a 1:12 twist rate. Does that make a huge difference in powder application, or am I worrying about nothing?

Moorvogi · May 23, 2019

outrider58 said:
The one concern I have using the Hodgdon table(and I use it all the time) is when searching for loads for my ARs, their rubric is for a 1:12 twist rate. Does that make a huge difference in powder application, or am I worrying about nothing?

Speed, as it also typically shows a different length barrel.

Sent from my iPhone using Tapatalk

Park ranger · Jun 21, 2019

A 12 twist won't stabilize a 75+ grain bullet. Why do powder companies even put this crap in there.

babalou · Jun 21, 2019

exactly

Park ranger said:
A 12 twist won't stabilize a 75+ grain bullet. Why do powder companies even put this crap in there.

agreed. 1:7 to 1:9 should be in all. All my ARs are 1:7 or 1:8. I have never shot a 75 or higher grain, though. 62 has been my heaviest. Need to find that drop chart for the grains.

Not a reloader but I pick Outrider58's brain-- just in case. I do not shoot enough to warrant.

John from MD · Jun 21, 2019

There are still quite a few M16A1's out there that use a 1 in 12 twist. PSA for those youngsters who weren't around back in the day that they were issued that way.

babalou · Jun 21, 2019

yeah

John from MD said:
There are still quite a few M16A1's out there that use a 1 in 12 twist. PSA for those youngsters who weren't around back in the day that they were issued that way.

that is what I was going by. I know that was the spec back then. Damn 40 grain 5.56

outrider58 · Jun 21, 2019

John from MD said:
There are still quite a few M16A1's out there that use a 1 in 12 twist. PSA for those youngsters who weren't around back in the day that they were issued that way.

Well the AR15/M16 is the "modern" day musket.

Moorvogi · Jun 21, 2019

Load testing complete. Benchmark powder and 75gr bullets are my friend. It's sub MOA and less than 1/2 inch high compared to my 55gr pet load groundhog food. I haven't put it to a chronograph yet, will do that tomorrow.

Here's my 4 shot group at 100y, printing 1/2 MOA higher than my 55gr nosler ballistic tip varmint load i use.

babalou · Jun 21, 2019

Nice!

Park ranger · Jun 21, 2019

For what it's worth, I don't think twist rate really has much to do with pressures. Bryan Litz noticed about 5 fps difference for each inch of barrel twist in his testing. Case volume or primer will have a much bigger role.

My 80 grain Sierra matchking load , this season, is 24 of varget in wolf brass, seated .030" off the lands, something like 2.450" oal. It's single load only for 600 yards, in my WOA 7 twist wylde about 2750 fps, which is faster than I would has guessed.(20" barrel).

Biggfoot44 · Jun 22, 2019

The original- original twist was 1:14 . Worked fine with "normal" 55gr fmj , the problem was tracers in subzero temps .

Moorvogi · Jun 23, 2019

Park ranger said:
My 80 grain Sierra matchking load , this season, is 24 of varget in wolf brass, seated .030" off the lands, something like 2.450" oal. It's single load only for 600 yards, in my WOA 7 twist wylde about 2750 fps, which is faster than I would has guessed.(20" barrel).

Does load master or whatever it's called do velocity estimates? 24" barrel, 23gr of BENCHMARK pushing a 75gr bullet. I'm low on bullets to throw 10-20 into a chronograph.. groundhogs will go hungry if i do.

Park ranger · Jun 23, 2019

I don't know what load master is, but I bet your at 2850 fps or so. That seems like a pretty hot load, fair bit of fast powder. Probably 1.5 Hiroshima. Lol

outrider58 · Jun 23, 2019

Moorvogi said:
Does load master or whatever it's called do velocity estimates? 24" barrel, 23gr of BENCHMARK pushing a 75gr bullet. I'm low on bullets to throw 10-20 into a chronograph.. groundhogs will go hungry if i do.

How much velocity does it take to kill a woodchuck? I shoot them in my back yard with a bow.

Moorvogi · Jun 23, 2019

Park ranger said:
I don't know what load master is, but I bet your at 2850 fps or so. That seems like a pretty hot load, fair bit of fast powder. Probably 1.5 Hiroshima. Lol

It's.. right up there with a published max of 23.5 from hodgdonreloading website. their test barrel is 24" (like mine) and used 23.5gr w/ a speed published of 2,829. that being said, they also have a 2gr spread (21.5 to 23.5) and a spread of JUST over 200fps.

Using a spreadsheet, it LOOKS like.. there's a fps gain of 10.95 per 1/10th of grain with this powder/bullet combo. Assuming there's a liner progression in acceleration (i doubt there is) i'm looking at maybe 2774 fps..

HOWEVER.. there's a lot of assumptions there which are all based off a website's data that i've never found to be "spot on" to start with but it's a good starting point i suppose.

223 wylde (1:8 twist)

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