30-30 10 gr. 700X

[mudgunner49]

I use 9 grains of TB undef 165 hard cast, no gas checks

I've also used this load with a Lyman 311041 and it works great in the 94 and the Handi...

 

[hoytcanon]

I've also used this load with a Lyman 311041 and it works great in the 94 and the Handi...

We use it for busting speed clays with the 94's.... fun load.

 

[H4831]

What do you think of a 173g gc WW bullet with 9g unique in the 30-30? I was going to start at 8g and work a few up. I only have like 1000 of those bullets at home lol

In the #1 Edition of Lyman's book of cast bullets, with 165 grain bullet in the 30-30, they show a min of 10 grains of Unique and a maximum of 15 grains, for a velocity of 1780 fps.
With the 170 grain bullet they don't show Unique.

 

[07blackwater]

Bruce, I'm looking at lyman's 4th here and it has unique loads.

Both 170 and 173 grain bullets call for 7 to 10.6 grains of unique.

I use 11 with cci200 and 10 with winchester lr's because I find them hotter.

 

[commonman]

Cratering can also be caused by a too-large firing pin hole in the bolt face. In my experience that is usually the case when firing older rifles. It isn't necessarily a sign of pressure being too high. I have a couple old rifles that crater primers terribly using starting loads; just the nature of the rifles.

The issue with looking at primers for pressure is that any given primer will flatten at some pressure level that has nothing to do with the cartridge it happens to be in. Federal primers for example will flatten almost totally with normal 308 loads. CCI wont flatten much even in my 300WM loads and that cartridge is rated for above 60,000psi. If CCI primers are flattening in a 30-30 you are in very dangerous territory as you are probably pushing a 42,000psi rated case/rifle past 60,000psi. If a Federal primer flattened in a 30-30 case I wouldn't think anything of it.

The primer has no idea what the max rated pressure of the cartridge that it happens to be seated in is. It doesn't "know" to flatten at the max pressure for any given cartridge. And cratering is a mechanical effect based on various factors, only one of which is pressure.

Kjohn, thanks for posting that picture and thanks too to Lutnit for the info on primer pressure limits. Is there any place that I can access that sort of data on primers in general ie: other makes and styles like LP and SP etc. Always keen to learn something new.

 

[Gunoholic]

Try 2.8 gr under a 500 gr cast RN in the .45-70 - less noise than a .22 short and blows thru 7 gal water jugs...

I've used Herc/Alliant Red Dot pistol powder for years in reduced loads with cast bullets for popping grouse, rabbits for the stew pot with my hunting rifles.
I always preferred it to SR4759 for that purpose because it burned a lot cleaner with little or no residue and the accuracy was superb.
I don't use gas checks on the cast bullets and never had a problem with barrel leading.

 

[mike44325]

I gotta try that! 2.8 gr 700x in the 45-70!