Original 35 Maynard bullet dimensions?

[Kevin Tinny]

Hello:

Lou Ruggerio and I are wrestling with bullet tipping at 100 yards when fired from his ORIGINAL, 24 inch twist 35 Maynard carbine barrel. The powder charge is a 1/16" compressed, 3Fg load in either full or reduced capacity cases.

There is no tipping at 50 yards, but there is quite visible tipping, not keyholing at 100 yards.

We have tried shortening the .845" long, nominal 200 grain Romano bullet, 1/16" and 1/8", but so far the tipping continues. Maybe we haven't shortened it enough.

By the way, some experienced shooters using Larry's bullet in their 35 caliber Romano Maynards, with EITHER 22"OR 18" twists report a bit of tipping at 100, but that the group is not enlarged.

Other very accomplished 35 Maynard shooters report no tipping issues with either bullet!

I am wondering if the ORIGINAL shorter, lighter, single grease groove bullet will NOT TIP at 100 yards, and if it is stable, what are its dimensions, please?

Also, from you that have no tipping problems, what are we missing, please?

Many thanks,

Kevin Tinny

[John Holland]

For what it is worth, I've seen a number of people using modern .38 caliber Semi-Wadcutter bullets in the LRRCO Model 1 carbines. Perhaps the modern Semi-Wadcutter with its full length bearing surface stabilizes better than the original bullet type with its short bearing surface?

[Jim Wimbish, 10395]

The tipping that you are referring to is called bullet yaw. It is experienced in other guns where it sometimes takes over 100 yards for the bullet to stabilize. I mostly notice the yaw In my 36 Maynard when I am shooting drywall at 100 yards. Interestingly enough, if I am shooting paper on a backer, I don't notice it. So for me the phenomena seems to be noticeable only when I am shooting a target that jumps around. Accuracy is not affected by the bullet yaw when I am shooting the drywall.

I can't try 38 caliber bullets in mine because a 38 caliber bullet is only about .358" and I need a .367" bullet for my bore. So if people are shooting 38 caliber bullets they sure aren't the ones normally used in a 38 caliber cartridge.

[Bruce Cobb 1723V]

Is the bullet going in the case straight? I'm pretty sure the original bullet is shorter.

[ms3635v]

I have an original .37 caliber Maynard cartridge and two bullets in my collection. The bullets measure .378" in diameter and are .712" long.

4502 4503

[Kevin Tinny]

Thanks, everyone:

Interesting on the 357 wadcutters.

I forgot to mention that Lou's 24" twist creates 50-yard stable hits, but tips/yaws at 100 with the 35 cal, .845" long Romano bullet.

From the dimension of the original, we have some shortening to do.
.845" minus .712" = .133" or a,bit more than the .125" Lou tried.

Lou will also look for yaw at 150 yards next time.

I think Lou is getting them loaded "straight", but he can gauge run-out by rolling the bodies on the edge of a flat surface to see bullet wobble.

Will keep you posted.

Regards,

Kevin Tinny

[Bruce Cobb 1723V]

Try this when shortening up the bullet if you can ................ Remove .1/8" or more off the tip end, shoot 10 rounds, then remove the same amount just off the base. I'll bet the short base shoots better. But what do I know??












remov

[bobanderson]

Kevin,
I use Lyman 375248, sized to .378, in my Model 1. That is a genuine 500 yard target bullet.

[Kevin Tinny]

Thanks, Bob:

To keep my mind apples-to-apples, is your barrel a true Romano 18" twist or a Shilen with 38-55 bore and maybe different twist, please?

If not the Shilen tube, might it be a Hoyt blank with 22" twist that were on early ones, please?

Nice to have you help.

Should see you this Fall Natl's.

Regards,

Kevin

[bobanderson]

Thanks, Bob:

To keep my mind apples-to-apples, is your barrel a true Romano 18" twist or a Shilen with 38-55 bore and maybe different twist, please?


Mine is a Shilen barrel with a 1-20 twist, as we've discussed before. (Don't hold me to that. I just went looking for the stub of my barrel but couldn't find it.) My point is the Lyman 375248 has the correct length to bore diameter to fly true at long range. If original barrels have a different bore, you cast and size to be about .002" over but keep the bullet length. Greenhill in a nutshell says the longer and heavier the bullet, the faster you should spin it. In my experience you can get good accuracy from a light bullet in a fast twist. In a slow twist barrel, you can't shoot heavier bullets without key holing and other accuracy killers.

Welcome back to the N-SSA. You are welcome to stop by the 1st Michigan campfire for some good shooting talk and maybe a barley pop.