Have had a .22 M10 (single shot) for a few years...reliable rifle over that time so I've no complaints.Certainly can make good power with heavy weight pellets (52-55foot pounds) and actually liked slugs (morelike 58-60 foot pounds). If more power is a goal, go with the .25.Also have an old full length Sumatra,which is also an excellet choice for making power....but much easier to dial it down when you'd rather have more shots than more power.Neither of the two really needed mods to get higher energy...some adjusting, but no new parts or modded issue parts (although I did end up making a new transfer port to slow the M10 down a little and extend shot count).
I appreciate the replies. Every time in my 40+ years of shooting that I thought a cheap solution would work- I enjoyed the learning curve & the tinkering.... But I almost always ended up buying the higher end dedicated rifle that was often recommended from the get go.I’ll look at the Sumatra. I appreciate the input.I didn’t even realize that PCPs could be overtuned to deform pellets. Cool stuff!DrGunner
The factory leaves the transfer port with sharp edges. Simple solution to this problem is to put a small radius on the t-port on the barrel side. Just break the edge and you will have no problems with t-port cutting the pellets. Not even with a 5mm t-port on a .22.
Quote from: DrGunner on December 27, 2019, 08:59:44 AMI appreciate the replies. Every time in my 40+ years of shooting that I thought a cheap solution would work- I enjoyed the learning curve & the tinkering.... But I almost always ended up buying the higher end dedicated rifle that was often recommended from the get go.I’ll look at the Sumatra. I appreciate the input.I didn’t even realize that PCPs could be overtuned to deform pellets. Cool stuff!DrGunnerTo clarify so you dont get a wrong impression... it's not the overtuning, per say... but rather the transfer port. The M10's I've dealt with had a 5mm transfer port. So when you push the pellet past this with the bolt, the head would drop down inside a little bit and deform the head as you pushed it past. If I could draw it out, would make better sense. In any case, that was in .22. In .25, I didnt have that issue and certainly didnt in .30 or .35.
If you can wait a few weeks, the new AEA HP Standard should be arriving in the US. We haven't seen the exact price yet, but $425 is a ballpark guess. I had a chance to demo the bottled version of this same gun (Varmit HP) in .22 and I was blown away by the accuracy and 7 lb weight. The Spa / Diana guns used to be among the best deals around, but I have seen a few threads on these forums that show the Spa tooling is wearing and quality control has slipped a little. In my mind they are one of the guns we call "the barrel lottery" guns now.
AEA is not Diana.....and even the SPA guns that are sold under the Diana name aren't Diana after all