Hornady 416 cal gas checks for 41 Mag?

[TedH]

I hate the Lyman gas checks for my 41 Mag. I have to trash about 1 in 10 because of defects or material missing from the side. Then unless I anneal them they usually fall off before I get the bullets loaded. I use Hornady gas checks in all my other calibers, but as you know they don't make any for the 41 Mag. Will the 416's work on the 41 Mags or are they too big to size down that much and still retain a proper shape?

[swheeler]

Ted; I believe Hornady makes the gaschecks for Lyman, maybe they just save rejects for them. he-he

[GLynn41]

TeDH I have been using the .416 hornady and they work just fine no problems-- i used them on an LBT 240 mold and a MM 305 --i too hate the Lyman --anyway I have never had any problems-- I think it was Veril Smith of LBT that told me to do this if i was unhappy with Lyman-- I was using tumble lube or finger nail polish to glue them on -- no likee that -- 416 much better-- the .005 does seem to make a difference

[Blacktail 8541]

I use the .416 Hornady on my 41 mag with great satisfaction, most of mine are a rather tight fit. and they will size down at least to .409 with no problem.

[felix]

Blacktail, what mold? ... felix

[TedH]

Ted; I believe Hornady makes the gaschecks for Lyman, maybe they just save rejects for them. he-he
The Lymans that I have are of a different metal than the Hornadys. The Lymans look more of a brass color while the Hornadys are of a copper color. The Lymans seem to be much thinner also. Looks like I need to get a box of the 416 Hornadys. Thanks for the replies fellas.

[BruceB]

Just a couple days back I gaschecked about 650 .45-caliber rifle bullets (457483 and 457406) with Hornady checks.

They behaved more like the old Lymans than the crimp-on Hornadys I've used for years. Sizing in my .459" Lyman die, the checks are not very secure at all. Some will fall off in normal handling of the boolits, many of them do not come out of the sizer die with the bullet and have to be dug out of the die with a pointy blade, and they are only .070" in height, which is shallower than my .416 checks for example..

I don't mind if ALL the checks fall off just after leaving the muzzle, or if they ALL stay attached until impact. What worries me is the likelihood of erratic retention, where some checks fall away immediately, some stay on the boolit to its destination, and some do whatever strikes their evil fancies en route to the target.

I may try running just the bases into a .457" die, but I really prefer having the base diameter as large as possible, and sizing-down the gascheck to .457 could easily reduce the check's bore-sealing ability. My .45-70 Shiloh has a .4575" groove diameter.

Back on thread topic, I have both a .41 handgun and .416" checks.....but my sole .41 pistol mould is a non-checked RCBS design. Not much help, am I???

[Blacktail 8541]

felix the mold is a custom from Dan at mountain moulds.

[Blacktail 8541]

Felix, should also add that this is a cast iron mould that I use 50/50 lino WW alloy. Drops a naked bullet at 244 grains.

[RugerFan]

Blacktail 8541,
Dan will only cut his .41 mag molds for the Lyman check shank by request. Your mold was probably designed for the .416 check. I've got two .41 mag molds from Mountain Molds and the .416s fit snugly.

[Blacktail 8541]

I requested the step shank cut for the Hornady gas check as it tends to snap on versus a pressure fit. So RugerFan you would be correct in assumeing it was designed for that particular gas check.

[Lloyd Smale]

its a pain in the but. I tested alot of .41s alot of differnt ways. Lyman checks on bullets there designed for do fall off and theres nothing cosistant about the way they do it. Ive tried even aneal them and got about the same results. Hornadys on shanks that are designed for lymans dont work right either your forcing the check on and shaving lead or swadging lead and it deforms the base and actually cause more accuracy problems then the lyman checks falling off. Good thing is that neither of these problems do much to effect accuracy till you get out to past 100 yards or so. The conclusion weve come to after testing is your best off to use the check size that fits the bullet lyman for lyman and hornadys on what they fit properly. the nice thing now is with the gator checks is you can get the proper check in a crimp on version and in alot of cases buy them cheaper then the junk lymans so theres no need to force on hornadys or to worry about specifying a shank cut for horndays.

[Blacktail 8541]

I didn't know a whole lot about the gator checks and have always been a little leary about continued availability of lesser known companys' products if it is something that I might be buying over and over. I had never heard of them till I found this board.

[fourarmed]

I tried a few Hornady .416 checks that 7br sent me on a bullet designed for .41 Lyman checks. It worked OK after I annealed the checks and laid them all open end up on a hard flat surface and tapped them lightly with a 1" ball bearing and a hammer. Spreads them just enough to go on the Lyman shank. I have about 500 of those boolits cast. Then I found a load with the PB 410459 that does what I want it to do, so I probably will never buy the .416 checks to do them all.

[willwork4ww]

I just got a new LBT 220 WFN tonight. Went to work casting, drops great bullets, but they're gas checked. WTH? I swore I ordered plain base. Since I didn't copy my order form before I mailed it, I can't look and see if I circled PB or GC. Anyway, I changed my mind 10 times before I ordered it and now I'm thinking maybe I'll just keep it. Anyway, a question for GLynn41, what is the check shank diameter on your LBT? Mines .385, I assume yours is the same? I assume this will work with the Hornady checks if I decide to keep it? What is the ID of the Hdy .416 checks?
Any input appreciated. Thanks

[Lloyd Smale]

if your interested in parting with that mold at a good price id be interested. Ive got an old 58 smith that really likes that bullet and my mold and i parted company many years ago.

[GLynn41]

willwork4ww -- i do not have the LBT mold any more so can not answer your question--except that the .416 gc worked and normally stay on when recovered--ID of the .416 gc? Confused what is ID?

[Blacktail 8541]

ID stands for inside diamiter.

[GLynn41]

Dummness gone to seed --ID --sorry about that --I had a tooth cut out this morning which is as good as exucse as any --using my old beat up midway caliphers--up at the mouth of the gc it is .386-.387 --it seems -- and at the very flat bottom it is .391--on a bullet from a Mountain mold lwncg of 305 grains the od ( see I did finally get it) of the gc step shank is ..382? as near as i can measure it-- not my mold just some bullets I have...-- my next mold will be a MM

[willwork4ww]

GLynn41, thanks for the reply.
Lloyd, I was in contact with Veral this morning. He double checked my order, I did order plain base. He is correcting it. The mold went back this afternoon, sorry.

[9.3X62AL]

From Fourarmed's post I see that I'm not the only one flaring Hornady gas checks to fit them properly on Lyman shanks. One each in 25 caliber and 30 caliber need that little prep step. FWIW, the 30 caliber (#311291) needs both Lyman and Hornady checks to be flared.

None of my 41 caliber molds need gas checks--can't help on that subject. I'll shut up now.

[swheeler]

FRom LBT website:"Note that all gas checks sold by Lyman and RCBS are made by Hornady and are Hornady specs, so you should no longer specify which brand of checks you’ll be using."