Information on .25 Gibbs

The 25 GIBBS - the speeds are quoted from a book on the GIBBS line . 26" barrel , 1 x10 twist , ( 117 gr ) - 3332, 3317 , 3295, 3285 - (100 gr) - 3545 , 3510, 3502 ,3505 - (87 gr ) - 3784 , 3789, 3768, 3762- (75gr ) - 3902, 3897, 3897 , 3861. Ray Romain (814)265-1948 chambers these - the 06 case was the base for these with the case blown forward about .040 with a shoulder of 30 to 35deg depending on caliber. Ray uses 06 or the 270 case which are longer .046 longer than the 06 case . a powder increase of 8 to 10 grains is the result , increased powder - increased speed.
the ones I've been looking at are the 6.5 and the 30 calibers . several people on this site have used these wildcats with great success , magnum speed all on 30-06 brass - good luck
Hi, I know this is an old thread but I have a 6.5 Gibbs that I want to reload for and it looks like you have some good information on it. Is there a book that contains all the Gibbs information? Also I found some dies on eBay that say 25 and 6.5 Gibbs on them I'm confused as to why they say both numbers on them
Thanks, hope you see this message
 
Is the sizer a bushing type die?

Does the seater have a replaceable seating stem?

If the answer to both is yes, I can see how they would likely be interchangeable from .25 to 6.5 Gibbs. I can't be positive of that, however.
 
Hi, I know this is an old thread but I have a 6.5 Gibbs that I want to reload for and it looks like you have some good information on it. Is there a book that contains all the Gibbs information? Also I found some dies on eBay that say 25 and 6.5 Gibbs on them I'm confused as to why they say both numbers on them
Thanks, hope you see this message
Yes, the thread is old, and you are quoting a member last seen on Jan 23, 2005, so he may or may not respond to your query.

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I have a .30 Gibbs and reload for it.

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At Grats ...
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Last edited:
Is the sizer a bushing type die?

Does the seater have a replaceable seating stem?

If the answer to both is yes, I can see how they would likely be interchangeable from .25 to 6.5 Gibbs. I can't be positive of that, however.
Thank you, I'm going to try and get them I guess either way. Finding Gibbs anywhere is hard and even at the gun shows most of the even old time vendors either have no idea what Gibbs is or tell me it's like finding a Yeti! If I can acquire them hopefully then maybe we can make sense of it. Maybe more questions to come!
 
Thank you, I'm going to try and get them I guess either way. Finding Gibbs anywhere is hard and even at the gun shows most of the even old time vendors either have no idea what Gibbs is or tell me it's like finding a Yeti! If I can acquire them hopefully then maybe we can make sense of it. Maybe more questions to come!
You are correct; there is limited information on Gibbs Wildcats. I have the CD that @sable tireur provided, but it will not help you much with current load development, especially with the new heavier/longer bullets available today. However, some sites (https://loaddata.com/Cartridge/65-Gibbs-65mm-Gibbs-Loading-Data/2720) might be able to help you with your load development; I went through it with my .30 Gibbs (https://www.longrangehunting.com/threads/30-gibbs-is-finally-ready.242088/) was not a showstopper for me.

Once you sort out the dies issue, I guess fire-forming brass is your next challenge. If you take the time to read the link I provided, I also covered my COW method. If you do not want to fire-form your brass, Qual Cart makes a head-stamped 6.5 Gibbs (https://www.qual-cart.com/264 cal.htm). Good luck!
 
You are correct; there is limited information on Gibbs Wildcats. I have the CD that @sable tireur provided, but it will not help you much with current load development, especially with the new heavier/longer bullets available today. However, some sites (https://loaddata.com/Cartridge/65-Gibbs-65mm-Gibbs-Loading-Data/2720) might be able to help you with your load development; I went through it with my .30 Gibbs (https://www.longrangehunting.com/threads/30-gibbs-is-finally-ready.242088/) was not a showstopper for me.

Once you sort out the dies issue, I guess fire-forming brass is your next challenge. If you take the time to read the link I provided, I also covered my COW method. If you do not want to fire-form your brass, Qual Cart makes a head-stamped 6.5 Gibbs (https://www.qual-cart.com/264 cal.htm). Good luck!
That's great information, I really appreciate it. The 6.5 Gibbs I inherited was my great grandfathers , his pride and joy. It was custom built for him and I only have a rounds for it. I'd like to shoot it sometime but I don't dare spend the loads I have until I get some new ones made. Thank you so much!
 
That's great information, I really appreciate it. The 6.5 Gibbs I inherited was my great grandfathers , his pride and joy. It was custom built for him and I only have a rounds for it. I'd like to shoot it sometime but I don't dare spend the loads I have until I get some new ones made. Thank you so much!
When you decide to start loading, start a new/separate thread from this so it does not get buried. It also adds to the knowledge base for us to refer to.
 

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