Cobalt, an interesting idea for sure! The fitting the two together is doable. I need to give some thought to the air tube seal. I think that’s where it becomes more difficult... I’m pretty certain that an air tube must be used with the model 25 to close off the feed port.Haa you totally rock, hinz! Let us know what it shoots like (as I know you will)!!
ETA, what are your thoughts on rethreading a 499 abutment to accept a model 25 shot tube? It has 7/16-14 threads IIRC. That would make installing a 25 shot tube into a new style Red Ryder a doable deal w/o having to use just the straw tube from the 25 shot tube. And the gun would stay a repeater. I haven't checked to see what the difference in thickness there is between the 499 abutment and the 1938B abutment assembly so I need to do that.
You’re not missing anything. In fact a loss in mv, down from a high of 438.Do not understand why no MV increase to speak of. What the he11 am I missing?
Do you think the spring having taken a set after the 1" plus preload has weakened it to the point that it won't perform as well as a un-preloaded HP spring?
ETA- Hinz, that's a very nice stock. Your work, I take it?
Welcome and glad you found us!I'd like to thank you folks for all the time and effort you've put into updating this subject. I've just finished reading the whole thing from the start and have found it extremely interesting. Having a Smithy Granite mill and lathe along with some experience modifying air rifles puts your project within my reach.
Personally single shot guns have brought me a lot of pleasure over the years so the 499 seems like a perfect fit. Cobalt have you tried your custom spring in the 499B or would there be a better version of the 499 to use?
Thanks for any help you can provide.
Check your messages, I might have a lead for you.Found this on gunbroker and thinking I might order one if nothing used comes up anywhere else.
https://www.gunbroker.com/item/800328782
Hmm. Interesting. Somewhat puzzling.The 105B with 499 shot tube and abutment, and the HP spring in place of the Red Ryder spring:
The previous string using the Red Ryder spring:
- 388.4 fps average over 16 shots
- 393 fps average for 10 shots