6mm REMINGTON

[GOPHER SLAYER]

Hey out there in the cast bullet world. Does anyone shoot cast bullets in the 6MM Rem? I need to know what powder and how much to start with. The mold I have is Lyman 245498 and it cast a bullet of 100 grains. I have the Lyman cast bullet handbook I bought in the early 60 s. It doesn't list a load for this mold. I also have their book from 1970. It lists a load for said bullet but the powders they name I either don't have or never heard of and in such small charges I consider them dangerous. Like 8 grains of Red Dot. I doubt you could even see that small a charge in a case that large. Of course I don't know what Red Dot looks like. All my other manuals are for jacketed bullets. For powders, I have 3031, 4198, 4895, R7,4759,4320, 4350,unique, 4227 and 2400 to name a few. I have never had any interest in loading cast bullets in what is normally a high velocity cartridge but both the mold and the bullets I am attempting to load were given to me so I figured why not. Any help will be appreciated.

[Pat I.]

Mike Mohler won the CBA production class and the national championship a few years back using a Ruger 77 in .243. He was using a Mos 95 gr mould sized .245 with 17.5 grs of 4198 for 1950 fps. 15.5 grs of 4198 might be a place to start.

[Charlie Sometimes]

I've got the same mold in single cavity, a 498 TP, and a 244 sizer that I am getting ready to apply to 243 Win real soon. You saved me asking this same question! Next step to search the archives here........

I felt the same as you once- but shooting these boolits is addictive! This is the last caliber/rifle combo that I have not fired a cast boolit through as yet. Countdown has started!

Anxious to see what info is provided here.........

[Buckshot]

..............GOPHER SLAYER, I'll have to ask Ron what he's loading. He told me that if he had to get rid of all his guns leave one, it'd be his 6mm Remington as it shoots cast or jacketed exceedingly well.

................Buckshot

[Bret4207]

Red Dot would be fine at 8.0 gr in the 6mm. Non position sensitive, easily ignited. A good choice.

[GOPHER SLAYER]

Thanks everybody, and keep 'em coming.

[Casting Timmy]

I'm actually starting to look into this now as well. I just cast some 245498s yesterday and will size them when I get the top punch in the mail.

One of the old Lymans lists for 243 Win 7-10grs Unigue for a 100gr cast bullet. It also lists the loads for using 2400 and I think 4227? I'll hopefully be testing out the Unigue load in a couple more weeks. Anybody else here have any loads they've worked up for the 245498 in 243 Win?

As for a little help with the with your gun, here are a few loads from the RCBS cast bullet manual.
The RCBS manual lists this for the 6mm/244 Remington
H335 21.0-23.0
IMR4895 21.0-23.0
SR4759 16.0-18.0
Red Dot 8.8-10.8

[GabbyM]

Third Edition Lyman cast bullet handbook has the #245498 listed under 6mm Rem. They have powder as slow as 4895 with start at 19.0 grains @ 1685 fps to 25.0 @ 2154 and 29,500 cup.

reloaders reference has pistol powder loads. All under 2,000 fps.
17 gr 4227 @1945 fps
14gr 2400 @ 1800
10gr Unique @ 1730

[Casting Timmy]

So far I've only tried the Unigue loads with the 245498. I worked up to max (10grs) and definitely think that's were to be with my rifle. I do think that the groups would do a little better with a little more velocity, so I'm going to figure out a different powder to test out.

Also I have the 245496 Lyman I was playing with for a while and definitely think that one's best aroudn 10.5grains of Unigue.

Anyone else figured out what they like for the 245496 and 245498?

[Casting Timmy]

I did get to test out IMR-4227 and 2400 a couple weeks ago in my 243. I do have a 9.125 twist for my rifle, so that could be helping me out with shooting the 245498 too.

So far it looks like somewhere around 17grs for the IMR-4227, which I lke a lot better than the 2400. If you have 2400 I think right around 13-14 grs woudl be the place to start with that powder.

The IMR 4227 almost gave me an inch grouping at 100 yrds. I didn't load very much to take to the range, but it will be interesting to see how this load works when I get more than just a few loads.

Anyone else started casting and shooting their 243's yet?

[x101airborne]

I have been loading h4895 and aa2230 in my 223's (bolt and AR) for years with gc 55 gr boolits. Enjoyed every minute. Red dot is not as scary as you think. i have never had it get position sensitive on me.

[reloader28]

I'm using the RCBS-95-SP for 243 and LOVE it. I wouldnt think the 6mm would be to far different from it.
Loaded over 15.5gr IMR 4198 at 1770fps. Aint really tried any other loads as I got 3/4"/100yds with this one right away. Shoots decent in the wifes gun too.
I'd like to find a little faster load, but I like this one so much I hate to try something new.
Just cast up some Lyman 245496 two nights ago, but aint worked up a load with that yet.
Maybe after hunting season.

[Moonie]

x101airborne, very interested in your experiences with .223 in your AR's with boolits. I should have my gas checks today or tomorrow for my bator boolits and was planning on working up loads for H4895.

so as not to hijack this thread feel free to pm me, or start a new thread for all to benefit.

[BCall]

16 gr of 4759 in my 243 with the RCBS 95gr boolit shoots great for me. Sub 1" if I do my part. Running around 1900 or a little faster I believe. Probably a good place to start in the 6mm as well. Billy

[AZ-Stew]

Wow! Lot's o' good info here! Some of the powders are the ones I would have gravitated to (2400, 4198, Red Dot), and others are ones that I should have considered, but it took the postings of other shooters to remind me (H335 being the most glaring example). H335 is a really good powder, providing velocity and excellent accuracy in the .223 Rem. In the 6mm Rem it will act as a slightly slower burning propellant, and likely ideal for cast in this case. Its best attribute is that it meters like water through any mechanical powder measure, due to its fine grained ball form. I have the RCBS 95 grain mould, but have not cast with it yet. I bought it from someone on this board just to have a mould in this diameter. I'll have to dig it out and mould a few, then dig out the 6mm rifle and the .243 and see how they do with them.

Regards,

Stew

[FWAddit]

I shoot Lyman 245496 in 6mm rifles. No sure-fire recommendations on powders, but one rifle is picky about sizing diameter. Having read years ago that any sizing at all damages the boolit, and therefore the less the better, I used a .245 sizing die. It didn't make a bit of difference whether I used Red Dot for 1200 fps or 4895 for 2000 or powders and velocities in between, they wouldn't shoot straight. I tried loads at the light end unsized and without gas checks. No better, no worse.

Dropped in at the Herter's store when they were in Waseca, MN, and noticed a .244 sizer die on clearance. That solved the problem. Didn't make a bit of difference whether the loads were slow or fast, they all shot pretty well.

Then I found a used Remington 600 in 6mm so cheap I just had to get it. It also shot boolits sized to .244 quite nicely. Out of curiosity, I shot some sized .245. They shot just as well. I tried very light loads with the boolits unsized without gas checks. They were satisfactory also.

Just confirms what everybody says: each rifle is going to have its own quirks.