Finally got the Glock Model 20 I've wanted for a long time. 500 rounds new Starline brass. Nosler 135's, Hornady 155's and Sierra 165's. I have a Lee mold to cast 145 gr. truncated cones from when I used to shoot .40 S&W. Would like to find a load to use the 145's in the new 10mm. Would like a low-pressure load, so my brass won't bulge and can be reused many times. These would be used for famiiarization and practice only.

I have Blue Dot, Green Dot, Red Dot, Herco, Unique and AA#5 on the shelf. Any suggestions with any of these powders, or should I make a trip to my LGS and HOPE to find some W231 or ????? or ????

This is from the Lyman manual 48th edition. The bullet as you see is a 150 grain so yours is 5 grains lighter so no danger. Start at the starting loads as you said you wanted a mild plinking load:

Sorry if this is kinda a hijacked thread, but I load cast for 40 and everywhere I've seen says not to exceed 1000 fps or so. Are these bullets gas checked, hard alloys? I haven't started casting yet but have a good deal of lead and about to start. Also wit the glocks polygonal rifling, seen alot of no go with lead unless going with an aftermarket barrel. Wouldn't this be exacerbated with the velocity of the 10mm?

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Originally posted by model7LSS:
Sorry if this is kinda a hijacked thread, but I load cast for 40 and everywhere I've seen says not to exceed 1000 fps or so. Are these bullets gas checked, hard alloys? I haven't started casting yet but have a good deal of lead and about to start. Also wit the glocks polygonal rifling, seen alot of no go with lead unless going with an aftermarket barrel. Wouldn't this be exacerbated with the velocity of the 10mm?

I've loaded that long too and I've never heard that rule. With the proper alloy and good lube there is not reason you can't exceed 1000 fps.

If you clean that Glock barrel after each shooting session, and I'm talking a decent workout not like just 25 rounds or so, you shouldn't ever have a problem with the barrel.

Ha, I didn't mean 40 years, having been roaming the earth that long. I meant 40 S&W. The bullets I was buying were factory, and said that on the box. I have since been buying berrys for my 40 but with the extreme shortage I guess I will be looking towards casting. Are lead sinkers (off a cast net) too soft and need to be alloyed?

I would try mixing clip on wheelweights with lead, such as those sinkers you mentioned, at a 50/50 ratio and drop them right out of the hot mold into a bucket of water to quench them and harden them. Then let them set for two weeks minimum to age harden. Watch what those sinkers are made of because there is also a movement to get lead out of sinkers and split shot as there is bullets. In other words they may not be lead.

I am pretty sure these are lead, they are OLD. I don't have much in the way of wheel weights, and they are getting really hard to find. I have access to the police firing range, is it possible to dig out bullets and melt the lead out leaving only the copper(much higher MP)? Would it be in my interest to get a sizing press and use gas checks as I also plan to load for 45-70. Back to the original post, but I just bought a Gen4 G23 and it seems to me the barrel is "fully supported". I say this as I got rid of an XD which supposedly is and the glock looks to be the same. I haven't shot this glock yet, but my brother has a gen4 G27 and none of the brass ejected from that gun has the characteristic hump I've seen from earlier glocks.

People making sinkers pretty much use whatever is available--good chance they are wheelweights. Lyman Manual gives exact amounts of alloies to add to 95% wheelweights(UNKNOWN) to get EXACT. ????. I have no experience with Glocks and I have read many people do shoot cast in them. Some say get an aftermarket barrel???? The Whitworth used a poly barrel when only cast were available---way before jacketed.

That lead recovered from the range I'm afraid is going to be too soft as it's likely the cores out of jacketed bullets. Those old sinkers most likely are lead as you said.

Gas checks add a lot of expense to bullets especially if you don't make your own gas checks. The would help a soft bullet no doubt. Have you thought about buying hard cast commercial bullets?

You don't have to get a sizing press as you can use LEE push through sizing dies that fit your regular reloading press and you can pan lube the bullets too.

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You don't have to get a sizing press as you can use LEE push through sizing dies that fit your regular reloading press .

Thats all I use and liquid Alox to size and lube my cast bullets any more fast and easy.